Add simple support for cindyjscindy

Notably, the error output (in case of compiler errors) is generated
by overwriting the builtin console.error-function, which is a horrible
idea for many reasons, but there isn't really any other way right now.

6 files changed, 1415 insertions, 1 deletions

diff --git a/.gitignore b/.gitignore
index 9528746e..4fae05f9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21,7 +21,7 @@ config.json
 .sequelizerc
 
 # ignore webpack build
-public/build
+#public/build
 public/views/build
 
 public/uploads/*
diff --git a/public/build/Cindy.js b/public/build/Cindy.js
new file mode 100644
index 00000000..872914b2
--- /dev/null
+++ b/public/build/Cindy.js
@@ -0,0 +1,1027 @@
+/* CindyJS - (C) 2014-2016  The CindyJS Project
+ * Mostly licensed under the Apache License 2.0, but subprojects may use different licensing.
+ * See https://github.com/CindyJS/CindyJS/tree/131b593c48ec6a2c773b580bea773a6298f7e901
+ * for corresponding sources and their respective licensing conditions.
+ */
+/*
+ npm.im/iphone-inline-video 2.0.2  npm.im/intervalometer  https://github.com/paulmillr/es6-shim
+ @license es6-shim Copyright 2013-2016 by Paul Miller (http://paulmillr.com)
+   and contributors,  MIT License
+ es6-shim: v0.35.4
+ see https://github.com/paulmillr/es6-shim/blob/0.35.3/LICENSE
+ Details and documentation:
+ https://github.com/paulmillr/es6-shim/
+*/
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+function(b){return Math.floor(Math.LN2*this.DB/Math.log(b))};d.prototype.toRadix=function(b){null==b&&(b=10);if(0==this.signum()||2>b||36<b)return"0";var c=this.chunkSize(b);c=Math.pow(b,c);var k=O(c),f=n(),d=n(),h="";for(this.divRemTo(k,f,d);0<f.signum();)h=(c+d.intValue()).toString(b).substr(1)+h,f.divRemTo(k,f,d);return d.intValue().toString(b)+h};d.prototype.fromRadix=function(b,c){this.fromInt(0);null==c&&(c=10);for(var k=this.chunkSize(c),f=Math.pow(c,k),ca=!1,h=0,n=0,p=0;p<b.length;++p){var t=
+I(b,p);0>t?"-"==b.charAt(p)&&0==this.signum()&&(ca=!0):(n=c*n+t,++h>=k&&(this.dMultiply(f),this.dAddOffset(n,0),n=h=0))}0<h&&(this.dMultiply(Math.pow(c,h)),this.dAddOffset(n,0));ca&&d.ZERO.subTo(this,this)};d.prototype.fromNumber=function(b,c,k){if("number"==typeof c)if(2>b)this.fromInt(1);else for(this.fromNumber(b,k),this.testBit(b-1)||this.bitwiseTo(d.ONE.shiftLeft(b-1),Wa,this),this.isEven()&&this.dAddOffset(1,0);!this.isProbablePrime(c);)this.dAddOffset(2,0),this.bitLength()>b&&this.subTo(d.ONE.shiftLeft(b-
+1),this);else{k=[];var f=b&7;k.length=(b>>3)+1;c.nextBytes(k);k[0]=0<f?k[0]&(1<<f)-1:0;this.fromString(k,256)}};d.prototype.bitwiseTo=function(b,c,k){var f,d=Math.min(b.t,this.t);for(f=0;f<d;++f)k[f]=c(this[f],b[f]);if(b.t<this.t){var h=b.s&this.DM;for(f=d;f<this.t;++f)k[f]=c(this[f],h);k.t=this.t}else{h=this.s&this.DM;for(f=d;f<b.t;++f)k[f]=c(h,b[f]);k.t=b.t}k.s=c(this.s,b.s);k.clamp()};d.prototype.changeBit=function(b,c){b=d.ONE.shiftLeft(b);this.bitwiseTo(b,c,b);return b};d.prototype.addTo=function(b,
+c){for(var k=0,f=0,d=Math.min(b.t,this.t);k<d;)f+=this[k]+b[k],c[k++]=f&this.DM,f>>=this.DB;if(b.t<this.t){for(f+=b.s;k<this.t;)f+=this[k],c[k++]=f&this.DM,f>>=this.DB;f+=this.s}else{for(f+=this.s;k<b.t;)f+=b[k],c[k++]=f&this.DM,f>>=this.DB;f+=b.s}c.s=0>f?-1:0;0<f?c[k++]=f:-1>f&&(c[k++]=this.DV+f);c.t=k;c.clamp()};d.prototype.dMultiply=function(b){this[this.t]=this.am(0,b-1,this,0,0,this.t);++this.t;this.clamp()};d.prototype.dAddOffset=function(b,c){if(0!=b){for(;this.t<=c;)this[this.t++]=0;for(this[c]+=
+b;this[c]>=this.DV;)this[c]-=this.DV,++c>=this.t&&(this[this.t++]=0),++this[c]}};d.prototype.multiplyLowerTo=function(b,c,k){var f=Math.min(this.t+b.t,c);k.s=0;for(k.t=f;0<f;)k[--f]=0;var d;for(d=k.t-this.t;f<d;++f)k[f+this.t]=this.am(0,b[f],k,f,0,this.t);for(d=Math.min(b.t,c);f<d;++f)this.am(0,b[f],k,f,0,c-f);k.clamp()};d.prototype.multiplyUpperTo=function(b,c,k){--c;var f=k.t=this.t+b.t-c;for(k.s=0;0<=--f;)k[f]=0;for(f=Math.max(c-this.t,0);f<b.t;++f)k[this.t+f-c]=this.am(c-f,b[f],k,0,0,this.t+f-
+c);k.clamp();k.drShiftTo(1,k)};d.prototype.modInt=function(b){if(0>=b)return 0;var c=this.DV%b,k=0>this.s?b-1:0;if(0<this.t)if(0==c)k=this[0]%b;else for(var f=this.t-1;0<=f;--f)k=(c*k+this[f])%b;return k};d.prototype.millerRabin=function(b){var c=this.subtract(d.ONE),k=c.getLowestSetBit();if(0>=k)return!1;var f=c.shiftRight(k);b=b+1>>1;b>T.length&&(b=T.length);for(var ca=n(),h=0;h<b;++h){ca.fromInt(T[Math.floor(Math.random()*T.length)]);var J=ca.modPow(f,this);if(0!=J.compareTo(d.ONE)&&0!=J.compareTo(c)){for(var p=
+1;p++<k&&0!=J.compareTo(c);)if(J=J.modPowInt(2,this),0==J.compareTo(d.ONE))return!1;if(0!=J.compareTo(c))return!1}}return!0};d.prototype.clone=function(){var b=n();this.copyTo(b);return b};d.prototype.intValue=function(){if(0>this.s){if(1==this.t)return this[0]-this.DV;if(0==this.t)return-1}else{if(1==this.t)return this[0];if(0==this.t)return 0}return(this[1]&(1<<32-this.DB)-1)<<this.DB|this[0]};d.prototype.byteValue=function(){return 0==this.t?this.s:this[0]<<24>>24};d.prototype.shortValue=function(){return 0==
+this.t?this.s:this[0]<<16>>16};d.prototype.signum=function(){return 0>this.s?-1:0>=this.t||1==this.t&&0>=this[0]?0:1};d.prototype.toByteArray=function(){var b=this.t,c=[];c[0]=this.s;var k=this.DB-b*this.DB%8,f,d=0;if(0<b--)for(k<this.DB&&(f=this[b]>>k)!=(this.s&this.DM)>>k&&(c[d++]=f|this.s<<this.DB-k);0<=b;)if(8>k?(f=(this[b]&(1<<k)-1)<<8-k,f|=this[--b]>>(k+=this.DB-8)):(f=this[b]>>(k-=8)&255,0>=k&&(k+=this.DB,--b)),0!=(f&128)&&(f|=-256),0==d&&(this.s&128)!=(f&128)&&++d,0<d||f!=this.s)c[d++]=f;
+return c};d.prototype.equals=function(b){return 0==this.compareTo(b)};d.prototype.min=function(b){return 0>this.compareTo(b)?this:b};d.prototype.max=function(b){return 0<this.compareTo(b)?this:b};d.prototype.and=function(b){var c=n();this.bitwiseTo(b,ia,c);return c};d.prototype.or=function(b){var c=n();this.bitwiseTo(b,Wa,c);return c};d.prototype.xor=function(b){var c=n();this.bitwiseTo(b,nc,c);return c};d.prototype.andNot=function(b){var c=n();this.bitwiseTo(b,db,c);return c};d.prototype.not=function(){for(var b=
+n(),c=0;c<this.t;++c)b[c]=this.DM&~this[c];b.t=this.t;b.s=~this.s;return b};d.prototype.shiftLeft=function(b){var c=n();0>b?this.rShiftTo(-b,c):this.lShiftTo(b,c);return c};d.prototype.shiftRight=function(b){var c=n();0>b?this.lShiftTo(-b,c):this.rShiftTo(b,c);return c};d.prototype.getLowestSetBit=function(){for(var b=0;b<this.t;++b)if(0!=this[b]){var c=b*this.DB;b=this[b];if(0==b)b=-1;else{var k=0;0==(b&65535)&&(b>>=16,k+=16);0==(b&255)&&(b>>=8,k+=8);0==(b&15)&&(b>>=4,k+=4);0==(b&3)&&(b>>=2,k+=2);
+0==(b&1)&&++k;b=k}return c+b}return 0>this.s?this.t*this.DB:-1};d.prototype.bitCount=function(){for(var b=0,c=this.s&this.DM,k=0;k<this.t;++k){for(var f=this[k]^c,d=0;0!=f;)f&=f-1,++d;b+=d}return b};d.prototype.testBit=function(b){var c=Math.floor(b/this.DB);return c>=this.t?0!=this.s:0!=(this[c]&1<<b%this.DB)};d.prototype.setBit=function(b){return this.changeBit(b,Wa)};d.prototype.clearBit=function(b){return this.changeBit(b,db)};d.prototype.flipBit=function(b){return this.changeBit(b,nc)};d.prototype.add=
+function(b){var c=n();this.addTo(b,c);return c};d.prototype.subtract=function(b){var c=n();this.subTo(b,c);return c};d.prototype.multiply=function(b){var c=n();this.multiplyTo(b,c);return c};d.prototype.divide=function(b){var c=n();this.divRemTo(b,c,null);return c};d.prototype.remainder=function(b){var c=n();this.divRemTo(b,null,c);return c};d.prototype.divideAndRemainder=function(b){var c=n(),k=n();this.divRemTo(b,c,k);return[c,k]};d.prototype.modPow=function(b,c){var k=b.bitLength(),f=O(1);if(0>=
+k)return f;var d=18>k?1:48>k?3:144>k?4:768>k?5:6;c=8>k?new X(c):c.isEven()?new Na(c):new p(c);var Z=[],J=3,t=d-1,B=(1<<d)-1;Z[1]=c.convert(this);if(1<d)for(k=n(),c.sqrTo(Z[1],k);J<=B;)Z[J]=n(),c.mulTo(k,Z[J-2],Z[J]),J+=2;var F=b.t-1,G,K=!0,I=n();for(k=h(b[F])-1;0<=F;){k>=t?G=b[F]>>k-t&B:(G=(b[F]&(1<<k+1)-1)<<t-k,0<F&&(G|=b[F-1]>>this.DB+k-t));for(J=d;0==(G&1);)G>>=1,--J;0>(k-=J)&&(k+=this.DB,--F);if(K)Z[G].copyTo(f),K=!1;else{for(;1<J;)c.sqrTo(f,I),c.sqrTo(I,f),J-=2;0<J?c.sqrTo(f,I):(J=f,f=I,I=J);
+c.mulTo(I,Z[G],f)}for(;0<=F&&0==(b[F]&1<<k);)c.sqrTo(f,I),J=f,f=I,I=J,0>--k&&(k=this.DB-1,--F)}return c.revert(f)};d.prototype.modInverse=function(b){var c=b.isEven();if(this.isEven()&&c||0==b.signum())return d.ZERO;for(var k=b.clone(),f=this.clone(),h=O(1),n=O(0),J=O(0),p=O(1);0!=k.signum();){for(;k.isEven();)k.rShiftTo(1,k),c?(h.isEven()&&n.isEven()||(h.addTo(this,h),n.subTo(b,n)),h.rShiftTo(1,h)):n.isEven()||n.subTo(b,n),n.rShiftTo(1,n);for(;f.isEven();)f.rShiftTo(1,f),c?(J.isEven()&&p.isEven()||
+(J.addTo(this,J),p.subTo(b,p)),J.rShiftTo(1,J)):p.isEven()||p.subTo(b,p),p.rShiftTo(1,p);0<=k.compareTo(f)?(k.subTo(f,k),c&&h.subTo(J,h),n.subTo(p,n)):(f.subTo(k,f),c&&J.subTo(h,J),p.subTo(n,p))}if(0!=f.compareTo(d.ONE))return d.ZERO;if(0<=p.compareTo(b))return p.subtract(b);if(0>p.signum())p.addTo(b,p);else return p;return 0>p.signum()?p.add(b):p};d.prototype.pow=function(b){return this.exp(b,new K)};d.prototype.gcd=function(b){var c=0>this.s?this.negate():this.clone();b=0>b.s?b.negate():b.clone();
+if(0>c.compareTo(b)){var k=c;c=b;b=k}k=c.getLowestSetBit();var f=b.getLowestSetBit();if(0>f)return c;k<f&&(f=k);for(0<f&&(c.rShiftTo(f,c),b.rShiftTo(f,b));0<c.signum();)0<(k=c.getLowestSetBit())&&c.rShiftTo(k,c),0<(k=b.getLowestSetBit())&&b.rShiftTo(k,b),0<=c.compareTo(b)?(c.subTo(b,c),c.rShiftTo(1,c)):(b.subTo(c,b),b.rShiftTo(1,b));0<f&&b.lShiftTo(f,b);return b};d.prototype.isProbablePrime=function(b){var c,k=this.abs();if(1==k.t&&k[0]<=T[T.length-1]){for(c=0;c<T.length;++c)if(k[0]==T[c])return!0;
+return!1}if(k.isEven())return!1;for(c=1;c<T.length;){for(var f=T[c],d=c+1;d<T.length&&f<Gb;)f*=T[d++];for(f=k.modInt(f);c<d;)if(0==f%T[c++])return!1}return k.millerRabin(b)};d.prototype.square=function(){var b=n();this.squareTo(b);return b};d.prototype.IsNegative=function(){return-1==this.compareTo(d.ZERO)?!0:!1};d.op_Equality=function(b,c){return 0==b.compareTo(c)?!0:!1};d.op_Inequality=function(b,c){return 0!=b.compareTo(c)?!0:!1};d.op_GreaterThan=function(b,c){return 0<b.compareTo(c)?!0:!1};d.op_LessThan=
+function(b,c){return 0>b.compareTo(c)?!0:!1};d.op_Addition=function(b,c){return(new d(b)).add(new d(c))};d.op_Subtraction=function(b,c){return(new d(b)).subtract(new d(c))};d.Int128Mul=function(b,c){return(new d(b)).multiply(new d(c))};d.op_Division=function(b,c){return b.divide(c)};d.prototype.ToDouble=function(){return parseFloat(this.toString())};ua=function(b,c){var k;if("undefined"==typeof Object.getOwnPropertyNames)for(k in c.prototype){if("undefined"==typeof b.prototype[k]||b.prototype[k]==
+Object.prototype[k])b.prototype[k]=c.prototype[k]}else for(var f=Object.getOwnPropertyNames(c.prototype),d=0;d<f.length;d++)"undefined"==typeof Object.getOwnPropertyDescriptor(b.prototype,f[d])&&Object.defineProperty(b.prototype,f[d],Object.getOwnPropertyDescriptor(c.prototype,f[d]));for(k in c)"undefined"==typeof b[k]&&(b[k]=c[k]);b.$baseCtor=c};f.Path=function(){return[]};f.Paths=function(){return[]};f.DoublePoint=function(){var b=arguments;this.Y=this.X=0;1==b.length?(this.X=b[0].X,this.Y=b[0].Y):
+2==b.length&&(this.X=b[0],this.Y=b[1])};f.DoublePoint0=function(){this.Y=this.X=0};f.DoublePoint1=function(b){this.X=b.X;this.Y=b.Y};f.DoublePoint2=function(b,c){this.X=b;this.Y=c};f.PolyNode=function(){this.m_Parent=null;this.m_polygon=new f.Path;this.m_endtype=this.m_jointype=this.m_Index=0;this.m_Childs=[];this.IsOpen=!1};f.PolyNode.prototype.IsHoleNode=function(){for(var b=!0,c=this.m_Parent;null!==c;)b=!b,c=c.m_Parent;return b};f.PolyNode.prototype.ChildCount=function(){return this.m_Childs.length};
+f.PolyNode.prototype.Contour=function(){return this.m_polygon};f.PolyNode.prototype.AddChild=function(b){var c=this.m_Childs.length;this.m_Childs.push(b);b.m_Parent=this;b.m_Index=c};f.PolyNode.prototype.GetNext=function(){return 0<this.m_Childs.length?this.m_Childs[0]:this.GetNextSiblingUp()};f.PolyNode.prototype.GetNextSiblingUp=function(){return null===this.m_Parent?null:this.m_Index==this.m_Parent.m_Childs.length-1?this.m_Parent.GetNextSiblingUp():this.m_Parent.m_Childs[this.m_Index+1]};f.PolyNode.prototype.Childs=
+function(){return this.m_Childs};f.PolyNode.prototype.Parent=function(){return this.m_Parent};f.PolyNode.prototype.IsHole=function(){return this.IsHoleNode()};f.PolyTree=function(){this.m_AllPolys=[];f.PolyNode.call(this)};f.PolyTree.prototype.Clear=function(){for(var b=0,c=this.m_AllPolys.length;b<c;b++)this.m_AllPolys[b]=null;this.m_AllPolys.length=0;this.m_Childs.length=0};f.PolyTree.prototype.GetFirst=function(){return 0<this.m_Childs.length?this.m_Childs[0]:null};f.PolyTree.prototype.Total=function(){var b=
+this.m_AllPolys.length;0<b&&this.m_Childs[0]!=this.m_AllPolys[0]&&b--;return b};ua(f.PolyTree,f.PolyNode);f.Math_Abs_Int64=f.Math_Abs_Int32=f.Math_Abs_Double=function(b){return Math.abs(b)};f.Math_Max_Int32_Int32=function(b,c){return Math.max(b,c)};f.Cast_Int32=va||Ab||ub?function(b){return b|0}:function(b){return~~b};f.Cast_Int64=F?function(b){return-2147483648>b||2147483647<b?0>b?Math.ceil(b):Math.floor(b):~~b}:Wb&&"function"==typeof Number.toInteger?function(b){return Number.toInteger(b)}:zb||
+Bb?function(b){return parseInt(b,10)}:va?function(b){return-2147483648>b||2147483647<b?0>b?Math.ceil(b):Math.floor(b):b|0}:function(b){return 0>b?Math.ceil(b):Math.floor(b)};f.Clear=function(b){b.length=0};f.PI=3.141592653589793;f.PI2=6.283185307179586;f.IntPoint=function(){var b=arguments,c=b.length;this.Y=this.X=0;f.use_xyz?(this.Z=0,3==c?(this.X=b[0],this.Y=b[1],this.Z=b[2]):2==c?(this.X=b[0],this.Y=b[1],this.Z=0):1==c?b[0]instanceof f.DoublePoint?(b=b[0],this.X=f.Clipper.Round(b.X),this.Y=f.Clipper.Round(b.Y),
+this.Z=0):(b=b[0],"undefined"==typeof b.Z&&(b.Z=0),this.X=b.X,this.Y=b.Y,this.Z=b.Z):this.Z=this.Y=this.X=0):2==c?(this.X=b[0],this.Y=b[1]):1==c?b[0]instanceof f.DoublePoint?(b=b[0],this.X=f.Clipper.Round(b.X),this.Y=f.Clipper.Round(b.Y)):(b=b[0],this.X=b.X,this.Y=b.Y):this.Y=this.X=0};f.IntPoint.op_Equality=function(b,c){return b.X==c.X&&b.Y==c.Y};f.IntPoint.op_Inequality=function(b,c){return b.X!=c.X||b.Y!=c.Y};f.use_xyz?(f.IntPoint0=function(){this.Z=this.Y=this.X=0},f.IntPoint1=function(b){this.X=
+b.X;this.Y=b.Y;this.Z=b.Z},f.IntPoint1dp=function(b){this.X=f.Clipper.Round(b.X);this.Y=f.Clipper.Round(b.Y);this.Z=0},f.IntPoint2=function(b,c){this.X=b;this.Y=c;this.Z=0},f.IntPoint3=function(b,c,k){this.X=b;this.Y=c;this.Z=k}):(f.IntPoint0=function(){this.Y=this.X=0},f.IntPoint1=function(b){this.X=b.X;this.Y=b.Y},f.IntPoint1dp=function(b){this.X=f.Clipper.Round(b.X);this.Y=f.Clipper.Round(b.Y)},f.IntPoint2=function(b,c){this.X=b;this.Y=c});f.IntRect=function(){var b=arguments,c=b.length;4==c?(this.left=
+b[0],this.top=b[1],this.right=b[2],this.bottom=b[3]):1==c?(this.left=b[0].left,this.top=b[0].top,this.right=b[0].right,this.bottom=b[0].bottom):this.bottom=this.right=this.top=this.left=0};f.IntRect0=function(){this.bottom=this.right=this.top=this.left=0};f.IntRect1=function(b){this.left=b.left;this.top=b.top;this.right=b.right;this.bottom=b.bottom};f.IntRect4=function(b,c,k,f){this.left=b;this.top=c;this.right=k;this.bottom=f};f.ClipType={ctIntersection:0,ctUnion:1,ctDifference:2,ctXor:3};f.PolyType=
+{ptSubject:0,ptClip:1};f.PolyFillType={pftEvenOdd:0,pftNonZero:1,pftPositive:2,pftNegative:3};f.JoinType={jtSquare:0,jtRound:1,jtMiter:2};f.EndType={etOpenSquare:0,etOpenRound:1,etOpenButt:2,etClosedLine:3,etClosedPolygon:4};f.EdgeSide={esLeft:0,esRight:1};f.Direction={dRightToLeft:0,dLeftToRight:1};f.TEdge=function(){this.Bot=new f.IntPoint;this.Curr=new f.IntPoint;this.Top=new f.IntPoint;this.Delta=new f.IntPoint;this.Dx=0;this.PolyTyp=f.PolyType.ptSubject;this.Side=f.EdgeSide.esLeft;this.OutIdx=
+this.WindCnt2=this.WindCnt=this.WindDelta=0;this.PrevInSEL=this.NextInSEL=this.PrevInAEL=this.NextInAEL=this.NextInLML=this.Prev=this.Next=null};f.IntersectNode=function(){this.Edge2=this.Edge1=null;this.Pt=new f.IntPoint};f.MyIntersectNodeSort=function(){};f.MyIntersectNodeSort.Compare=function(b,c){b=c.Pt.Y-b.Pt.Y;return 0<b?1:0>b?-1:0};f.LocalMinima=function(){this.Y=0;this.Next=this.RightBound=this.LeftBound=null};f.Scanbeam=function(){this.Y=0;this.Next=null};f.OutRec=function(){this.Idx=0;this.IsOpen=
+this.IsHole=!1;this.PolyNode=this.BottomPt=this.Pts=this.FirstLeft=null};f.OutPt=function(){this.Idx=0;this.Pt=new f.IntPoint;this.Prev=this.Next=null};f.Join=function(){this.OutPt2=this.OutPt1=null;this.OffPt=new f.IntPoint};f.ClipperBase=function(){this.m_CurrentLM=this.m_MinimaList=null;this.m_edges=[];this.PreserveCollinear=this.m_HasOpenPaths=this.m_UseFullRange=!1;this.m_CurrentLM=this.m_MinimaList=null;this.m_HasOpenPaths=this.m_UseFullRange=!1};f.ClipperBase.horizontal=-9007199254740992;f.ClipperBase.Skip=
+-2;f.ClipperBase.Unassigned=-1;f.ClipperBase.tolerance=1E-20;f.ClipperBase.loRange=47453132;f.ClipperBase.hiRange=0xfffffffffffff;f.ClipperBase.near_zero=function(b){return b>-f.ClipperBase.tolerance&&b<f.ClipperBase.tolerance};f.ClipperBase.IsHorizontal=function(b){return 0===b.Delta.Y};f.ClipperBase.prototype.PointIsVertex=function(b,c){var k=c;do{if(f.IntPoint.op_Equality(k.Pt,b))return!0;k=k.Next}while(k!=c);return!1};f.ClipperBase.prototype.PointOnLineSegment=function(b,c,k,f){return f?b.X==
+c.X&&b.Y==c.Y||b.X==k.X&&b.Y==k.Y||b.X>c.X==b.X<k.X&&b.Y>c.Y==b.Y<k.Y&&d.op_Equality(d.Int128Mul(b.X-c.X,k.Y-c.Y),d.Int128Mul(k.X-c.X,b.Y-c.Y)):b.X==c.X&&b.Y==c.Y||b.X==k.X&&b.Y==k.Y||b.X>c.X==b.X<k.X&&b.Y>c.Y==b.Y<k.Y&&(b.X-c.X)*(k.Y-c.Y)==(k.X-c.X)*(b.Y-c.Y)};f.ClipperBase.prototype.PointOnPolygon=function(b,c,k){for(var f=c;;){if(this.PointOnLineSegment(b,f.Pt,f.Next.Pt,k))return!0;f=f.Next;if(f==c)break}return!1};f.ClipperBase.prototype.SlopesEqual=f.ClipperBase.SlopesEqual=function(){var b=arguments,
+c=b.length,k,U;if(3==c)return c=b[0],k=b[1],b[2]?d.op_Equality(d.Int128Mul(c.Delta.Y,k.Delta.X),d.Int128Mul(c.Delta.X,k.Delta.Y)):f.Cast_Int64(c.Delta.Y*k.Delta.X)==f.Cast_Int64(c.Delta.X*k.Delta.Y);if(4==c)return c=b[0],k=b[1],U=b[2],b[3]?d.op_Equality(d.Int128Mul(c.Y-k.Y,k.X-U.X),d.Int128Mul(c.X-k.X,k.Y-U.Y)):0===f.Cast_Int64((c.Y-k.Y)*(k.X-U.X))-f.Cast_Int64((c.X-k.X)*(k.Y-U.Y));c=b[0];k=b[1];U=b[2];var h=b[3];return b[4]?d.op_Equality(d.Int128Mul(c.Y-k.Y,U.X-h.X),d.Int128Mul(c.X-k.X,U.Y-h.Y)):
+0===f.Cast_Int64((c.Y-k.Y)*(U.X-h.X))-f.Cast_Int64((c.X-k.X)*(U.Y-h.Y))};f.ClipperBase.SlopesEqual3=function(b,c,k){return k?d.op_Equality(d.Int128Mul(b.Delta.Y,c.Delta.X),d.Int128Mul(b.Delta.X,c.Delta.Y)):f.Cast_Int64(b.Delta.Y*c.Delta.X)==f.Cast_Int64(b.Delta.X*c.Delta.Y)};f.ClipperBase.SlopesEqual4=function(b,c,k,U){return U?d.op_Equality(d.Int128Mul(b.Y-c.Y,c.X-k.X),d.Int128Mul(b.X-c.X,c.Y-k.Y)):0===f.Cast_Int64((b.Y-c.Y)*(c.X-k.X))-f.Cast_Int64((b.X-c.X)*(c.Y-k.Y))};f.ClipperBase.SlopesEqual5=
+function(b,c,k,U,h){return h?d.op_Equality(d.Int128Mul(b.Y-c.Y,k.X-U.X),d.Int128Mul(b.X-c.X,k.Y-U.Y)):0===f.Cast_Int64((b.Y-c.Y)*(k.X-U.X))-f.Cast_Int64((b.X-c.X)*(k.Y-U.Y))};f.ClipperBase.prototype.Clear=function(){this.DisposeLocalMinimaList();for(var b=0,c=this.m_edges.length;b<c;++b){for(var k=0,d=this.m_edges[b].length;k<d;++k)this.m_edges[b][k]=null;f.Clear(this.m_edges[b])}f.Clear(this.m_edges);this.m_HasOpenPaths=this.m_UseFullRange=!1};f.ClipperBase.prototype.DisposeLocalMinimaList=function(){for(;null!==
+this.m_MinimaList;){var b=this.m_MinimaList.Next;this.m_MinimaList=null;this.m_MinimaList=b}this.m_CurrentLM=null};f.ClipperBase.prototype.RangeTest=function(b,c){if(c.Value)(b.X>f.ClipperBase.hiRange||b.Y>f.ClipperBase.hiRange||-b.X>f.ClipperBase.hiRange||-b.Y>f.ClipperBase.hiRange)&&f.Error("Coordinate outside allowed range in RangeTest().");else if(b.X>f.ClipperBase.loRange||b.Y>f.ClipperBase.loRange||-b.X>f.ClipperBase.loRange||-b.Y>f.ClipperBase.loRange)c.Value=!0,this.RangeTest(b,c)};f.ClipperBase.prototype.InitEdge=
+function(b,c,k,d){b.Next=c;b.Prev=k;b.Curr.X=d.X;b.Curr.Y=d.Y;f.use_xyz&&(b.Curr.Z=d.Z);b.OutIdx=-1};f.ClipperBase.prototype.InitEdge2=function(b,c){b.Curr.Y>=b.Next.Curr.Y?(b.Bot.X=b.Curr.X,b.Bot.Y=b.Curr.Y,f.use_xyz&&(b.Bot.Z=b.Curr.Z),b.Top.X=b.Next.Curr.X,b.Top.Y=b.Next.Curr.Y,f.use_xyz&&(b.Top.Z=b.Next.Curr.Z)):(b.Top.X=b.Curr.X,b.Top.Y=b.Curr.Y,f.use_xyz&&(b.Top.Z=b.Curr.Z),b.Bot.X=b.Next.Curr.X,b.Bot.Y=b.Next.Curr.Y,f.use_xyz&&(b.Bot.Z=b.Next.Curr.Z));this.SetDx(b);b.PolyTyp=c};f.ClipperBase.prototype.FindNextLocMin=
+function(b){for(var c;;){for(;f.IntPoint.op_Inequality(b.Bot,b.Prev.Bot)||f.IntPoint.op_Equality(b.Curr,b.Top);)b=b.Next;if(b.Dx!=f.ClipperBase.horizontal&&b.Prev.Dx!=f.ClipperBase.horizontal)break;for(;b.Prev.Dx==f.ClipperBase.horizontal;)b=b.Prev;for(c=b;b.Dx==f.ClipperBase.horizontal;)b=b.Next;if(b.Top.Y!=b.Prev.Bot.Y){c.Prev.Bot.X<b.Bot.X&&(b=c);break}}return b};f.ClipperBase.prototype.ProcessBound=function(b,c){var k,d=b,h;if(d.OutIdx==f.ClipperBase.Skip){b=d;if(c){for(;b.Top.Y==b.Next.Bot.Y;)b=
+b.Next;for(;b!=d&&b.Dx==f.ClipperBase.horizontal;)b=b.Prev}else{for(;b.Top.Y==b.Prev.Bot.Y;)b=b.Prev;for(;b!=d&&b.Dx==f.ClipperBase.horizontal;)b=b.Next}b==d?d=c?b.Next:b.Prev:(b=c?d.Next:d.Prev,k=new f.LocalMinima,k.Next=null,k.Y=b.Bot.Y,k.LeftBound=null,k.RightBound=b,b.WindDelta=0,d=this.ProcessBound(b,c),this.InsertLocalMinima(k));return d}b.Dx==f.ClipperBase.horizontal&&(k=c?b.Prev:b.Next,k.OutIdx!=f.ClipperBase.Skip&&(k.Dx==f.ClipperBase.horizontal?k.Bot.X!=b.Bot.X&&k.Top.X!=b.Bot.X&&this.ReverseHorizontal(b):
+k.Bot.X!=b.Bot.X&&this.ReverseHorizontal(b)));k=b;if(c){for(;d.Top.Y==d.Next.Bot.Y&&d.Next.OutIdx!=f.ClipperBase.Skip;)d=d.Next;if(d.Dx==f.ClipperBase.horizontal&&d.Next.OutIdx!=f.ClipperBase.Skip){for(h=d;h.Prev.Dx==f.ClipperBase.horizontal;)h=h.Prev;h.Prev.Top.X==d.Next.Top.X?c||(d=h.Prev):h.Prev.Top.X>d.Next.Top.X&&(d=h.Prev)}for(;b!=d;)b.NextInLML=b.Next,b.Dx==f.ClipperBase.horizontal&&b!=k&&b.Bot.X!=b.Prev.Top.X&&this.ReverseHorizontal(b),b=b.Next;b.Dx==f.ClipperBase.horizontal&&b!=k&&b.Bot.X!=
+b.Prev.Top.X&&this.ReverseHorizontal(b);d=d.Next}else{for(;d.Top.Y==d.Prev.Bot.Y&&d.Prev.OutIdx!=f.ClipperBase.Skip;)d=d.Prev;if(d.Dx==f.ClipperBase.horizontal&&d.Prev.OutIdx!=f.ClipperBase.Skip){for(h=d;h.Next.Dx==f.ClipperBase.horizontal;)h=h.Next;h.Next.Top.X==d.Prev.Top.X?c||(d=h.Next):h.Next.Top.X>d.Prev.Top.X&&(d=h.Next)}for(;b!=d;)b.NextInLML=b.Prev,b.Dx==f.ClipperBase.horizontal&&b!=k&&b.Bot.X!=b.Next.Top.X&&this.ReverseHorizontal(b),b=b.Prev;b.Dx==f.ClipperBase.horizontal&&b!=k&&b.Bot.X!=
+b.Next.Top.X&&this.ReverseHorizontal(b);d=d.Prev}return d};f.ClipperBase.prototype.AddPath=function(b,c,k){f.use_lines?k||c!=f.PolyType.ptClip||f.Error("AddPath: Open paths must be subject."):k||f.Error("AddPath: Open paths have been disabled.");var d=b.length-1;if(k)for(;0<d&&f.IntPoint.op_Equality(b[d],b[0]);)--d;for(;0<d&&f.IntPoint.op_Equality(b[d],b[d-1]);)--d;if(k&&2>d||!k&&1>d)return!1;for(var h=[],n=0;n<=d;n++)h.push(new f.TEdge);var J=!0;h[1].Curr.X=b[1].X;h[1].Curr.Y=b[1].Y;f.use_xyz&&(h[1].Curr.Z=
+b[1].Z);var p={Value:this.m_UseFullRange};this.RangeTest(b[0],p);this.m_UseFullRange=p.Value;p.Value=this.m_UseFullRange;this.RangeTest(b[d],p);this.m_UseFullRange=p.Value;this.InitEdge(h[0],h[1],h[d],b[0]);this.InitEdge(h[d],h[0],h[d-1],b[d]);for(n=d-1;1<=n;--n)p.Value=this.m_UseFullRange,this.RangeTest(b[n],p),this.m_UseFullRange=p.Value,this.InitEdge(h[n],h[n+1],h[n-1],b[n]);for(n=b=d=h[0];;)if(b.Curr!=b.Next.Curr||!k&&b.Next==d){if(b.Prev==b.Next)break;else if(k&&f.ClipperBase.SlopesEqual(b.Prev.Curr,
+b.Curr,b.Next.Curr,this.m_UseFullRange)&&(!this.PreserveCollinear||!this.Pt2IsBetweenPt1AndPt3(b.Prev.Curr,b.Curr,b.Next.Curr))){b==d&&(d=b.Next);b=this.RemoveEdge(b);n=b=b.Prev;continue}b=b.Next;if(b==n||!k&&b.Next==d)break}else{if(b==b.Next)break;b==d&&(d=b.Next);n=b=this.RemoveEdge(b)}if(!k&&b==b.Next||k&&b.Prev==b.Next)return!1;k||(this.m_HasOpenPaths=!0,d.Prev.OutIdx=f.ClipperBase.Skip);b=d;do this.InitEdge2(b,c),b=b.Next,J&&b.Curr.Y!=d.Curr.Y&&(J=!1);while(b!=d);if(J){if(k)return!1;b.Prev.OutIdx=
+f.ClipperBase.Skip;b.Prev.Bot.X<b.Prev.Top.X&&this.ReverseHorizontal(b.Prev);c=new f.LocalMinima;c.Next=null;c.Y=b.Bot.Y;c.LeftBound=null;c.RightBound=b;c.RightBound.Side=f.EdgeSide.esRight;for(c.RightBound.WindDelta=0;b.Next.OutIdx!=f.ClipperBase.Skip;)b.NextInLML=b.Next,b.Bot.X!=b.Prev.Top.X&&this.ReverseHorizontal(b),b=b.Next;this.InsertLocalMinima(c);this.m_edges.push(h);return!0}this.m_edges.push(h);J=null;for(f.IntPoint.op_Equality(b.Prev.Bot,b.Prev.Top)&&(b=b.Next);;){b=this.FindNextLocMin(b);
+if(b==J)break;else null==J&&(J=b);c=new f.LocalMinima;c.Next=null;c.Y=b.Bot.Y;b.Dx<b.Prev.Dx?(c.LeftBound=b.Prev,c.RightBound=b,h=!1):(c.LeftBound=b,c.RightBound=b.Prev,h=!0);c.LeftBound.Side=f.EdgeSide.esLeft;c.RightBound.Side=f.EdgeSide.esRight;c.LeftBound.WindDelta=k?c.LeftBound.Next==c.RightBound?-1:1:0;c.RightBound.WindDelta=-c.LeftBound.WindDelta;b=this.ProcessBound(c.LeftBound,h);b.OutIdx==f.ClipperBase.Skip&&(b=this.ProcessBound(b,h));d=this.ProcessBound(c.RightBound,!h);d.OutIdx==f.ClipperBase.Skip&&
+(d=this.ProcessBound(d,!h));c.LeftBound.OutIdx==f.ClipperBase.Skip?c.LeftBound=null:c.RightBound.OutIdx==f.ClipperBase.Skip&&(c.RightBound=null);this.InsertLocalMinima(c);h||(b=d)}return!0};f.ClipperBase.prototype.AddPaths=function(b,c,k){for(var f=!1,d=0,h=b.length;d<h;++d)this.AddPath(b[d],c,k)&&(f=!0);return f};f.ClipperBase.prototype.Pt2IsBetweenPt1AndPt3=function(b,c,k){return f.IntPoint.op_Equality(b,k)||f.IntPoint.op_Equality(b,c)||f.IntPoint.op_Equality(k,c)?!1:b.X!=k.X?c.X>b.X==c.X<k.X:c.Y>
+b.Y==c.Y<k.Y};f.ClipperBase.prototype.RemoveEdge=function(b){b.Prev.Next=b.Next;b.Next.Prev=b.Prev;var c=b.Next;b.Prev=null;return c};f.ClipperBase.prototype.SetDx=function(b){b.Delta.X=b.Top.X-b.Bot.X;b.Delta.Y=b.Top.Y-b.Bot.Y;b.Dx=0===b.Delta.Y?f.ClipperBase.horizontal:b.Delta.X/b.Delta.Y};f.ClipperBase.prototype.InsertLocalMinima=function(b){if(null===this.m_MinimaList)this.m_MinimaList=b;else if(b.Y>=this.m_MinimaList.Y)b.Next=this.m_MinimaList,this.m_MinimaList=b;else{for(var c=this.m_MinimaList;null!==
+c.Next&&b.Y<c.Next.Y;)c=c.Next;b.Next=c.Next;c.Next=b}};f.ClipperBase.prototype.PopLocalMinima=function(){null!==this.m_CurrentLM&&(this.m_CurrentLM=this.m_CurrentLM.Next)};f.ClipperBase.prototype.ReverseHorizontal=function(b){var c=b.Top.X;b.Top.X=b.Bot.X;b.Bot.X=c;f.use_xyz&&(c=b.Top.Z,b.Top.Z=b.Bot.Z,b.Bot.Z=c)};f.ClipperBase.prototype.Reset=function(){this.m_CurrentLM=this.m_MinimaList;if(null!=this.m_CurrentLM)for(var b=this.m_MinimaList;null!=b;){var c=b.LeftBound;null!=c&&(c.Curr.X=c.Bot.X,
+c.Curr.Y=c.Bot.Y,f.use_xyz&&(c.Curr.Z=c.Bot.Z),c.Side=f.EdgeSide.esLeft,c.OutIdx=f.ClipperBase.Unassigned);c=b.RightBound;null!=c&&(c.Curr.X=c.Bot.X,c.Curr.Y=c.Bot.Y,f.use_xyz&&(c.Curr.Z=c.Bot.Z),c.Side=f.EdgeSide.esRight,c.OutIdx=f.ClipperBase.Unassigned);b=b.Next}};f.Clipper=function(b){"undefined"==typeof b&&(b=0);this.m_PolyOuts=null;this.m_ClipType=f.ClipType.ctIntersection;this.m_IntersectNodeComparer=this.m_IntersectList=this.m_SortedEdges=this.m_ActiveEdges=this.m_Scanbeam=null;this.m_ExecuteLocked=
+!1;this.m_SubjFillType=this.m_ClipFillType=f.PolyFillType.pftEvenOdd;this.m_GhostJoins=this.m_Joins=null;this.StrictlySimple=this.ReverseSolution=this.m_UsingPolyTree=!1;f.ClipperBase.call(this);this.m_SortedEdges=this.m_ActiveEdges=this.m_Scanbeam=null;this.m_IntersectList=[];this.m_IntersectNodeComparer=f.MyIntersectNodeSort.Compare;this.m_UsingPolyTree=this.m_ExecuteLocked=!1;this.m_PolyOuts=[];this.m_Joins=[];this.m_GhostJoins=[];this.ReverseSolution=0!==(1&b);this.StrictlySimple=0!==(2&b);this.PreserveCollinear=
+0!==(4&b);f.use_xyz&&(this.ZFillFunction=null)};f.Clipper.ioReverseSolution=1;f.Clipper.ioStrictlySimple=2;f.Clipper.ioPreserveCollinear=4;f.Clipper.prototype.Clear=function(){0!==this.m_edges.length&&(this.DisposeAllPolyPts(),f.ClipperBase.prototype.Clear.call(this))};f.Clipper.prototype.DisposeScanbeamList=function(){for(;null!==this.m_Scanbeam;){var b=this.m_Scanbeam.Next;this.m_Scanbeam=null;this.m_Scanbeam=b}};f.Clipper.prototype.Reset=function(){f.ClipperBase.prototype.Reset.call(this);this.m_SortedEdges=
+this.m_ActiveEdges=this.m_Scanbeam=null;for(var b=this.m_MinimaList;null!==b;)this.InsertScanbeam(b.Y),b=b.Next};f.Clipper.prototype.InsertScanbeam=function(b){if(null===this.m_Scanbeam)this.m_Scanbeam=new f.Scanbeam,this.m_Scanbeam.Next=null,this.m_Scanbeam.Y=b;else if(b>this.m_Scanbeam.Y){var c=new f.Scanbeam;c.Y=b;c.Next=this.m_Scanbeam;this.m_Scanbeam=c}else{for(var k=this.m_Scanbeam;null!==k.Next&&b<=k.Next.Y;)k=k.Next;b!=k.Y&&(c=new f.Scanbeam,c.Y=b,c.Next=k.Next,k.Next=c)}};f.Clipper.prototype.Execute=
+function(){var b=arguments,c=b.length,k=b[1]instanceof f.PolyTree;if(4!=c||k){if(4==c&&k){c=b[0];var d=b[1];k=b[2];b=b[3];if(this.m_ExecuteLocked)return!1;this.m_ExecuteLocked=!0;this.m_SubjFillType=k;this.m_ClipFillType=b;this.m_ClipType=c;this.m_UsingPolyTree=!0;try{(h=this.ExecuteInternal())&&this.BuildResult2(d)}finally{this.DisposeAllPolyPts(),this.m_ExecuteLocked=!1}return h}if(2==c&&!k||2==c&&k)return c=b[0],d=b[1],this.Execute(c,d,f.PolyFillType.pftEvenOdd,f.PolyFillType.pftEvenOdd)}else{c=
+b[0];d=b[1];k=b[2];b=b[3];if(this.m_ExecuteLocked)return!1;this.m_HasOpenPaths&&f.Error("Error: PolyTree struct is need for open path clipping.");this.m_ExecuteLocked=!0;f.Clear(d);this.m_SubjFillType=k;this.m_ClipFillType=b;this.m_ClipType=c;this.m_UsingPolyTree=!1;try{var h=this.ExecuteInternal();h&&this.BuildResult(d)}finally{this.DisposeAllPolyPts(),this.m_ExecuteLocked=!1}return h}};f.Clipper.prototype.FixHoleLinkage=function(b){if(null!==b.FirstLeft&&(b.IsHole==b.FirstLeft.IsHole||null===b.FirstLeft.Pts)){for(var c=
+b.FirstLeft;null!==c&&(c.IsHole==b.IsHole||null===c.Pts);)c=c.FirstLeft;b.FirstLeft=c}};f.Clipper.prototype.ExecuteInternal=function(){try{this.Reset();if(null===this.m_CurrentLM)return!1;var b=this.PopScanbeam();do{this.InsertLocalMinimaIntoAEL(b);f.Clear(this.m_GhostJoins);this.ProcessHorizontals(!1);if(null===this.m_Scanbeam)break;var c=this.PopScanbeam();if(!this.ProcessIntersections(c))return!1;this.ProcessEdgesAtTopOfScanbeam(c);b=c}while(null!==this.m_Scanbeam||null!==this.m_CurrentLM);b=0;
+for(var k=this.m_PolyOuts.length;b<k;b++){var d=this.m_PolyOuts[b];null===d.Pts||d.IsOpen||(d.IsHole^this.ReverseSolution)==0<this.Area(d)&&this.ReversePolyPtLinks(d.Pts)}this.JoinCommonEdges();b=0;for(k=this.m_PolyOuts.length;b<k;b++)d=this.m_PolyOuts[b],null===d.Pts||d.IsOpen||this.FixupOutPolygon(d);this.StrictlySimple&&this.DoSimplePolygons();return!0}finally{f.Clear(this.m_Joins),f.Clear(this.m_GhostJoins)}};f.Clipper.prototype.PopScanbeam=function(){var b=this.m_Scanbeam.Y;this.m_Scanbeam=this.m_Scanbeam.Next;
+return b};f.Clipper.prototype.DisposeAllPolyPts=function(){for(var b=0,c=this.m_PolyOuts.length;b<c;++b)this.DisposeOutRec(b);f.Clear(this.m_PolyOuts)};f.Clipper.prototype.DisposeOutRec=function(b){this.m_PolyOuts[b].Pts=null;this.m_PolyOuts[b]=null};f.Clipper.prototype.AddJoin=function(b,c,k){var d=new f.Join;d.OutPt1=b;d.OutPt2=c;d.OffPt.X=k.X;d.OffPt.Y=k.Y;f.use_xyz&&(d.OffPt.Z=k.Z);this.m_Joins.push(d)};f.Clipper.prototype.AddGhostJoin=function(b,c){var k=new f.Join;k.OutPt1=b;k.OffPt.X=c.X;k.OffPt.Y=
+c.Y;f.use_xyz&&(k.OffPt.Z=c.Z);this.m_GhostJoins.push(k)};f.Clipper.prototype.SetZ=function(b,c,k){null!==this.ZFillFunction&&0==b.Z&&null!==this.ZFillFunction&&(f.IntPoint.op_Equality(b,c.Bot)?b.Z=c.Bot.Z:f.IntPoint.op_Equality(b,c.Top)?b.Z=c.Top.Z:f.IntPoint.op_Equality(b,k.Bot)?b.Z=k.Bot.Z:f.IntPoint.op_Equality(b,k.Top)?b.Z=k.Top.Z:this.ZFillFunction(c.Bot,c.Top,k.Bot,k.Top,b))};f.Clipper.prototype.InsertLocalMinimaIntoAEL=function(b){for(;null!==this.m_CurrentLM&&this.m_CurrentLM.Y==b;){var c=
+this.m_CurrentLM.LeftBound,k=this.m_CurrentLM.RightBound;this.PopLocalMinima();var d=null;null===c?(this.InsertEdgeIntoAEL(k,null),this.SetWindingCount(k),this.IsContributing(k)&&(d=this.AddOutPt(k,k.Bot))):(null==k?(this.InsertEdgeIntoAEL(c,null),this.SetWindingCount(c),this.IsContributing(c)&&(d=this.AddOutPt(c,c.Bot))):(this.InsertEdgeIntoAEL(c,null),this.InsertEdgeIntoAEL(k,c),this.SetWindingCount(c),k.WindCnt=c.WindCnt,k.WindCnt2=c.WindCnt2,this.IsContributing(c)&&(d=this.AddLocalMinPoly(c,k,
+c.Bot))),this.InsertScanbeam(c.Top.Y));null!=k&&(f.ClipperBase.IsHorizontal(k)?this.AddEdgeToSEL(k):this.InsertScanbeam(k.Top.Y));if(null!=c&&null!=k){if(null!==d&&f.ClipperBase.IsHorizontal(k)&&0<this.m_GhostJoins.length&&0!==k.WindDelta)for(var h=0,n=this.m_GhostJoins.length;h<n;h++){var J=this.m_GhostJoins[h];this.HorzSegmentsOverlap(J.OutPt1.Pt.X,J.OffPt.X,k.Bot.X,k.Top.X)&&this.AddJoin(J.OutPt1,d,J.OffPt)}0<=c.OutIdx&&null!==c.PrevInAEL&&c.PrevInAEL.Curr.X==c.Bot.X&&0<=c.PrevInAEL.OutIdx&&f.ClipperBase.SlopesEqual(c.PrevInAEL,
+c,this.m_UseFullRange)&&0!==c.WindDelta&&0!==c.PrevInAEL.WindDelta&&(h=this.AddOutPt(c.PrevInAEL,c.Bot),this.AddJoin(d,h,c.Top));if(c.NextInAEL!=k&&(0<=k.OutIdx&&0<=k.PrevInAEL.OutIdx&&f.ClipperBase.SlopesEqual(k.PrevInAEL,k,this.m_UseFullRange)&&0!==k.WindDelta&&0!==k.PrevInAEL.WindDelta&&(h=this.AddOutPt(k.PrevInAEL,k.Bot),this.AddJoin(d,h,k.Top)),d=c.NextInAEL,null!==d))for(;d!=k;)this.IntersectEdges(k,d,c.Curr,!1),d=d.NextInAEL}}};f.Clipper.prototype.InsertEdgeIntoAEL=function(b,c){if(null===
+this.m_ActiveEdges)b.PrevInAEL=null,b.NextInAEL=null,this.m_ActiveEdges=b;else if(null===c&&this.E2InsertsBeforeE1(this.m_ActiveEdges,b))b.PrevInAEL=null,b.NextInAEL=this.m_ActiveEdges,this.m_ActiveEdges=this.m_ActiveEdges.PrevInAEL=b;else{for(null===c&&(c=this.m_ActiveEdges);null!==c.NextInAEL&&!this.E2InsertsBeforeE1(c.NextInAEL,b);)c=c.NextInAEL;b.NextInAEL=c.NextInAEL;null!==c.NextInAEL&&(c.NextInAEL.PrevInAEL=b);b.PrevInAEL=c;c.NextInAEL=b}};f.Clipper.prototype.E2InsertsBeforeE1=function(b,c){return c.Curr.X==
+b.Curr.X?c.Top.Y>b.Top.Y?c.Top.X<f.Clipper.TopX(b,c.Top.Y):b.Top.X>f.Clipper.TopX(c,b.Top.Y):c.Curr.X<b.Curr.X};f.Clipper.prototype.IsEvenOddFillType=function(b){return b.PolyTyp==f.PolyType.ptSubject?this.m_SubjFillType==f.PolyFillType.pftEvenOdd:this.m_ClipFillType==f.PolyFillType.pftEvenOdd};f.Clipper.prototype.IsEvenOddAltFillType=function(b){return b.PolyTyp==f.PolyType.ptSubject?this.m_ClipFillType==f.PolyFillType.pftEvenOdd:this.m_SubjFillType==f.PolyFillType.pftEvenOdd};f.Clipper.prototype.IsContributing=
+function(b){var c,k;b.PolyTyp==f.PolyType.ptSubject?(c=this.m_SubjFillType,k=this.m_ClipFillType):(c=this.m_ClipFillType,k=this.m_SubjFillType);switch(c){case f.PolyFillType.pftEvenOdd:if(0===b.WindDelta&&1!=b.WindCnt)return!1;break;case f.PolyFillType.pftNonZero:if(1!=Math.abs(b.WindCnt))return!1;break;case f.PolyFillType.pftPositive:if(1!=b.WindCnt)return!1;break;default:if(-1!=b.WindCnt)return!1}switch(this.m_ClipType){case f.ClipType.ctIntersection:switch(k){case f.PolyFillType.pftEvenOdd:case f.PolyFillType.pftNonZero:return 0!==
+b.WindCnt2;case f.PolyFillType.pftPositive:return 0<b.WindCnt2;default:return 0>b.WindCnt2}case f.ClipType.ctUnion:switch(k){case f.PolyFillType.pftEvenOdd:case f.PolyFillType.pftNonZero:return 0===b.WindCnt2;case f.PolyFillType.pftPositive:return 0>=b.WindCnt2;default:return 0<=b.WindCnt2}case f.ClipType.ctDifference:if(b.PolyTyp==f.PolyType.ptSubject)switch(k){case f.PolyFillType.pftEvenOdd:case f.PolyFillType.pftNonZero:return 0===b.WindCnt2;case f.PolyFillType.pftPositive:return 0>=b.WindCnt2;
+default:return 0<=b.WindCnt2}else switch(k){case f.PolyFillType.pftEvenOdd:case f.PolyFillType.pftNonZero:return 0!==b.WindCnt2;case f.PolyFillType.pftPositive:return 0<b.WindCnt2;default:return 0>b.WindCnt2}case f.ClipType.ctXor:if(0===b.WindDelta)switch(k){case f.PolyFillType.pftEvenOdd:case f.PolyFillType.pftNonZero:return 0===b.WindCnt2;case f.PolyFillType.pftPositive:return 0>=b.WindCnt2;default:return 0<=b.WindCnt2}}return!0};f.Clipper.prototype.SetWindingCount=function(b){for(var c=b.PrevInAEL;null!==
+c&&(c.PolyTyp!=b.PolyTyp||0===c.WindDelta);)c=c.PrevInAEL;if(null===c)b.WindCnt=0===b.WindDelta?1:b.WindDelta,b.WindCnt2=0,c=this.m_ActiveEdges;else{if(0===b.WindDelta&&this.m_ClipType!=f.ClipType.ctUnion)b.WindCnt=1;else if(this.IsEvenOddFillType(b))if(0===b.WindDelta){for(var k=!0,d=c.PrevInAEL;null!==d;)d.PolyTyp==c.PolyTyp&&0!==d.WindDelta&&(k=!k),d=d.PrevInAEL;b.WindCnt=k?0:1}else b.WindCnt=b.WindDelta;else b.WindCnt=0>c.WindCnt*c.WindDelta?1<Math.abs(c.WindCnt)?0>c.WindDelta*b.WindDelta?c.WindCnt:
+c.WindCnt+b.WindDelta:0===b.WindDelta?1:b.WindDelta:0===b.WindDelta?0>c.WindCnt?c.WindCnt-1:c.WindCnt+1:0>c.WindDelta*b.WindDelta?c.WindCnt:c.WindCnt+b.WindDelta;b.WindCnt2=c.WindCnt2;c=c.NextInAEL}if(this.IsEvenOddAltFillType(b))for(;c!=b;)0!==c.WindDelta&&(b.WindCnt2=0===b.WindCnt2?1:0),c=c.NextInAEL;else for(;c!=b;)b.WindCnt2+=c.WindDelta,c=c.NextInAEL};f.Clipper.prototype.AddEdgeToSEL=function(b){null===this.m_SortedEdges?(this.m_SortedEdges=b,b.PrevInSEL=null,b.NextInSEL=null):(b.NextInSEL=this.m_SortedEdges,
+b.PrevInSEL=null,this.m_SortedEdges=this.m_SortedEdges.PrevInSEL=b)};f.Clipper.prototype.CopyAELToSEL=function(){var b=this.m_ActiveEdges;for(this.m_SortedEdges=b;null!==b;)b.PrevInSEL=b.PrevInAEL,b=b.NextInSEL=b.NextInAEL};f.Clipper.prototype.SwapPositionsInAEL=function(b,c){if(b.NextInAEL!=b.PrevInAEL&&c.NextInAEL!=c.PrevInAEL){if(b.NextInAEL==c){var k=c.NextInAEL;null!==k&&(k.PrevInAEL=b);var f=b.PrevInAEL;null!==f&&(f.NextInAEL=c);c.PrevInAEL=f;c.NextInAEL=b;b.PrevInAEL=c;b.NextInAEL=k}else c.NextInAEL==
+b?(k=b.NextInAEL,null!==k&&(k.PrevInAEL=c),f=c.PrevInAEL,null!==f&&(f.NextInAEL=b),b.PrevInAEL=f,b.NextInAEL=c,c.PrevInAEL=b,c.NextInAEL=k):(k=b.NextInAEL,f=b.PrevInAEL,b.NextInAEL=c.NextInAEL,null!==b.NextInAEL&&(b.NextInAEL.PrevInAEL=b),b.PrevInAEL=c.PrevInAEL,null!==b.PrevInAEL&&(b.PrevInAEL.NextInAEL=b),c.NextInAEL=k,null!==c.NextInAEL&&(c.NextInAEL.PrevInAEL=c),c.PrevInAEL=f,null!==c.PrevInAEL&&(c.PrevInAEL.NextInAEL=c));null===b.PrevInAEL?this.m_ActiveEdges=b:null===c.PrevInAEL&&(this.m_ActiveEdges=
+c)}};f.Clipper.prototype.SwapPositionsInSEL=function(b,c){if(null!==b.NextInSEL||null!==b.PrevInSEL)if(null!==c.NextInSEL||null!==c.PrevInSEL){if(b.NextInSEL==c){var k=c.NextInSEL;null!==k&&(k.PrevInSEL=b);var f=b.PrevInSEL;null!==f&&(f.NextInSEL=c);c.PrevInSEL=f;c.NextInSEL=b;b.PrevInSEL=c;b.NextInSEL=k}else c.NextInSEL==b?(k=b.NextInSEL,null!==k&&(k.PrevInSEL=c),f=c.PrevInSEL,null!==f&&(f.NextInSEL=b),b.PrevInSEL=f,b.NextInSEL=c,c.PrevInSEL=b,c.NextInSEL=k):(k=b.NextInSEL,f=b.PrevInSEL,b.NextInSEL=
+c.NextInSEL,null!==b.NextInSEL&&(b.NextInSEL.PrevInSEL=b),b.PrevInSEL=c.PrevInSEL,null!==b.PrevInSEL&&(b.PrevInSEL.NextInSEL=b),c.NextInSEL=k,null!==c.NextInSEL&&(c.NextInSEL.PrevInSEL=c),c.PrevInSEL=f,null!==c.PrevInSEL&&(c.PrevInSEL.NextInSEL=c));null===b.PrevInSEL?this.m_SortedEdges=b:null===c.PrevInSEL&&(this.m_SortedEdges=c)}};f.Clipper.prototype.AddLocalMaxPoly=function(b,c,k){this.AddOutPt(b,k);0==c.WindDelta&&this.AddOutPt(c,k);b.OutIdx==c.OutIdx?(b.OutIdx=-1,c.OutIdx=-1):b.OutIdx<c.OutIdx?
+this.AppendPolygon(b,c):this.AppendPolygon(c,b)};f.Clipper.prototype.AddLocalMinPoly=function(b,c,k){var d,h;f.ClipperBase.IsHorizontal(c)||b.Dx>c.Dx?(d=this.AddOutPt(b,k),c.OutIdx=b.OutIdx,b.Side=f.EdgeSide.esLeft,c.Side=f.EdgeSide.esRight,h=b,b=h.PrevInAEL==c?c.PrevInAEL:h.PrevInAEL):(d=this.AddOutPt(c,k),b.OutIdx=c.OutIdx,b.Side=f.EdgeSide.esRight,c.Side=f.EdgeSide.esLeft,h=c,b=h.PrevInAEL==b?b.PrevInAEL:h.PrevInAEL);null!==b&&0<=b.OutIdx&&f.Clipper.TopX(b,k.Y)==f.Clipper.TopX(h,k.Y)&&f.ClipperBase.SlopesEqual(h,
+b,this.m_UseFullRange)&&0!==h.WindDelta&&0!==b.WindDelta&&(k=this.AddOutPt(b,k),this.AddJoin(d,k,h.Top));return d};f.Clipper.prototype.CreateOutRec=function(){var b=new f.OutRec;b.Idx=-1;b.IsHole=!1;b.IsOpen=!1;b.FirstLeft=null;b.Pts=null;b.BottomPt=null;b.PolyNode=null;this.m_PolyOuts.push(b);b.Idx=this.m_PolyOuts.length-1;return b};f.Clipper.prototype.AddOutPt=function(b,c){var k=b.Side==f.EdgeSide.esLeft;if(0>b.OutIdx){var d=this.CreateOutRec();d.IsOpen=0===b.WindDelta;var h=new f.OutPt;d.Pts=
+h;h.Idx=d.Idx;h.Pt.X=c.X;h.Pt.Y=c.Y;f.use_xyz&&(h.Pt.Z=c.Z);h.Next=h;h.Prev=h;d.IsOpen||this.SetHoleState(b,d);b.OutIdx=d.Idx}else{d=this.m_PolyOuts[b.OutIdx];b=d.Pts;if(k&&f.IntPoint.op_Equality(c,b.Pt))return b;if(!k&&f.IntPoint.op_Equality(c,b.Prev.Pt))return b.Prev;h=new f.OutPt;h.Idx=d.Idx;h.Pt.X=c.X;h.Pt.Y=c.Y;f.use_xyz&&(h.Pt.Z=c.Z);h.Next=b;h.Prev=b.Prev;h.Prev.Next=h;b.Prev=h;k&&(d.Pts=h)}return h};f.Clipper.prototype.SwapPoints=function(b,c){var k=new f.IntPoint(b.Value);b.Value.X=c.Value.X;
+b.Value.Y=c.Value.Y;f.use_xyz&&(b.Value.Z=c.Value.Z);c.Value.X=k.X;c.Value.Y=k.Y;f.use_xyz&&(c.Value.Z=k.Z)};f.Clipper.prototype.HorzSegmentsOverlap=function(b,c,k,f){var d;b>c&&(d=b,b=c,c=d);k>f&&(d=k,k=f,f=d);return b<f&&k<c};f.Clipper.prototype.SetHoleState=function(b,c){var k=!1;for(b=b.PrevInAEL;null!==b;)0<=b.OutIdx&&0!=b.WindDelta&&(k=!k,null===c.FirstLeft&&(c.FirstLeft=this.m_PolyOuts[b.OutIdx])),b=b.PrevInAEL;k&&(c.IsHole=!0)};f.Clipper.prototype.GetDx=function(b,c){return b.Y==c.Y?f.ClipperBase.horizontal:
+(c.X-b.X)/(c.Y-b.Y)};f.Clipper.prototype.FirstIsBottomPt=function(b,c){for(var k=b.Prev;f.IntPoint.op_Equality(k.Pt,b.Pt)&&k!=b;)k=k.Prev;var d=Math.abs(this.GetDx(b.Pt,k.Pt));for(k=b.Next;f.IntPoint.op_Equality(k.Pt,b.Pt)&&k!=b;)k=k.Next;b=Math.abs(this.GetDx(b.Pt,k.Pt));for(k=c.Prev;f.IntPoint.op_Equality(k.Pt,c.Pt)&&k!=c;)k=k.Prev;var h=Math.abs(this.GetDx(c.Pt,k.Pt));for(k=c.Next;f.IntPoint.op_Equality(k.Pt,c.Pt)&&k!=c;)k=k.Next;k=Math.abs(this.GetDx(c.Pt,k.Pt));return d>=h&&d>=k||b>=h&&b>=k};
+f.Clipper.prototype.GetBottomPt=function(b){for(var c=null,k=b.Next;k!=b;)k.Pt.Y>b.Pt.Y?(b=k,c=null):k.Pt.Y==b.Pt.Y&&k.Pt.X<=b.Pt.X&&(k.Pt.X<b.Pt.X?(c=null,b=k):k.Next!=b&&k.Prev!=b&&(c=k)),k=k.Next;if(null!==c)for(;c!=k;)for(this.FirstIsBottomPt(k,c)||(b=c),c=c.Next;f.IntPoint.op_Inequality(c.Pt,b.Pt);)c=c.Next;return b};f.Clipper.prototype.GetLowermostRec=function(b,c){null===b.BottomPt&&(b.BottomPt=this.GetBottomPt(b.Pts));null===c.BottomPt&&(c.BottomPt=this.GetBottomPt(c.Pts));var k=b.BottomPt,
+f=c.BottomPt;return k.Pt.Y>f.Pt.Y?b:k.Pt.Y<f.Pt.Y?c:k.Pt.X<f.Pt.X?b:k.Pt.X>f.Pt.X?c:k.Next==k?c:f.Next==f?b:this.FirstIsBottomPt(k,f)?b:c};f.Clipper.prototype.Param1RightOfParam2=function(b,c){do if(b=b.FirstLeft,b==c)return!0;while(null!==b);return!1};f.Clipper.prototype.GetOutRec=function(b){for(b=this.m_PolyOuts[b];b!=this.m_PolyOuts[b.Idx];)b=this.m_PolyOuts[b.Idx];return b};f.Clipper.prototype.AppendPolygon=function(b,c){var k=this.m_PolyOuts[b.OutIdx],d=this.m_PolyOuts[c.OutIdx];var h=this.Param1RightOfParam2(k,
+d)?d:this.Param1RightOfParam2(d,k)?k:this.GetLowermostRec(k,d);var n=k.Pts,J=n.Prev,p=d.Pts,t=p.Prev;b.Side==f.EdgeSide.esLeft?(c.Side==f.EdgeSide.esLeft?(this.ReversePolyPtLinks(p),p.Next=n,n.Prev=p,J.Next=t,t.Prev=J,k.Pts=t):(t.Next=n,n.Prev=t,p.Prev=J,J.Next=p,k.Pts=p),n=f.EdgeSide.esLeft):(c.Side==f.EdgeSide.esRight?(this.ReversePolyPtLinks(p),J.Next=t,t.Prev=J,p.Next=n,n.Prev=p):(J.Next=p,p.Prev=J,n.Prev=t,t.Next=n),n=f.EdgeSide.esRight);k.BottomPt=null;h==d&&(d.FirstLeft!=k&&(k.FirstLeft=d.FirstLeft),
+k.IsHole=d.IsHole);d.Pts=null;d.BottomPt=null;d.FirstLeft=k;h=b.OutIdx;J=c.OutIdx;b.OutIdx=-1;c.OutIdx=-1;for(p=this.m_ActiveEdges;null!==p;){if(p.OutIdx==J){p.OutIdx=h;p.Side=n;break}p=p.NextInAEL}d.Idx=k.Idx};f.Clipper.prototype.ReversePolyPtLinks=function(b){if(null!==b){var c=b;do{var k=c.Next;c.Next=c.Prev;c=c.Prev=k}while(c!=b)}};f.Clipper.SwapSides=function(b,c){var k=b.Side;b.Side=c.Side;c.Side=k};f.Clipper.SwapPolyIndexes=function(b,c){var k=b.OutIdx;b.OutIdx=c.OutIdx;c.OutIdx=k};f.Clipper.prototype.IntersectEdges=
+function(b,c,k){var d=0<=b.OutIdx,h=0<=c.OutIdx;f.use_xyz&&this.SetZ(k,b,c);if(!f.use_lines||0!==b.WindDelta&&0!==c.WindDelta){if(b.PolyTyp==c.PolyTyp)if(this.IsEvenOddFillType(b)){var n=b.WindCnt;b.WindCnt=c.WindCnt;c.WindCnt=n}else b.WindCnt=0===b.WindCnt+c.WindDelta?-b.WindCnt:b.WindCnt+c.WindDelta,c.WindCnt=0===c.WindCnt-b.WindDelta?-c.WindCnt:c.WindCnt-b.WindDelta;else this.IsEvenOddFillType(c)?b.WindCnt2=0===b.WindCnt2?1:0:b.WindCnt2+=c.WindDelta,this.IsEvenOddFillType(b)?c.WindCnt2=0===c.WindCnt2?
+1:0:c.WindCnt2-=b.WindDelta;var J,p,t;b.PolyTyp==f.PolyType.ptSubject?(J=this.m_SubjFillType,t=this.m_ClipFillType):(J=this.m_ClipFillType,t=this.m_SubjFillType);c.PolyTyp==f.PolyType.ptSubject?(p=this.m_SubjFillType,n=this.m_ClipFillType):(p=this.m_ClipFillType,n=this.m_SubjFillType);switch(J){case f.PolyFillType.pftPositive:J=b.WindCnt;break;case f.PolyFillType.pftNegative:J=-b.WindCnt;break;default:J=Math.abs(b.WindCnt)}switch(p){case f.PolyFillType.pftPositive:p=c.WindCnt;break;case f.PolyFillType.pftNegative:p=
+-c.WindCnt;break;default:p=Math.abs(c.WindCnt)}if(d&&h)0!=J&&1!=J||0!=p&&1!=p||b.PolyTyp!=c.PolyTyp&&this.m_ClipType!=f.ClipType.ctXor?this.AddLocalMaxPoly(b,c,k):(this.AddOutPt(b,k),this.AddOutPt(c,k),f.Clipper.SwapSides(b,c),f.Clipper.SwapPolyIndexes(b,c));else if(d){if(0===p||1==p)this.AddOutPt(b,k),f.Clipper.SwapSides(b,c),f.Clipper.SwapPolyIndexes(b,c)}else if(h){if(0===J||1==J)this.AddOutPt(c,k),f.Clipper.SwapSides(b,c),f.Clipper.SwapPolyIndexes(b,c)}else if(!(0!=J&&1!=J||0!=p&&1!=p)){switch(t){case f.PolyFillType.pftPositive:d=
+b.WindCnt2;break;case f.PolyFillType.pftNegative:d=-b.WindCnt2;break;default:d=Math.abs(b.WindCnt2)}switch(n){case f.PolyFillType.pftPositive:h=c.WindCnt2;break;case f.PolyFillType.pftNegative:h=-c.WindCnt2;break;default:h=Math.abs(c.WindCnt2)}if(b.PolyTyp!=c.PolyTyp)this.AddLocalMinPoly(b,c,k);else if(1==J&&1==p)switch(this.m_ClipType){case f.ClipType.ctIntersection:0<d&&0<h&&this.AddLocalMinPoly(b,c,k);break;case f.ClipType.ctUnion:0>=d&&0>=h&&this.AddLocalMinPoly(b,c,k);break;case f.ClipType.ctDifference:(b.PolyTyp==
+f.PolyType.ptClip&&0<d&&0<h||b.PolyTyp==f.PolyType.ptSubject&&0>=d&&0>=h)&&this.AddLocalMinPoly(b,c,k);break;case f.ClipType.ctXor:this.AddLocalMinPoly(b,c,k)}else f.Clipper.SwapSides(b,c)}}else if(0!=b.WindDelta||0!=c.WindDelta)b.PolyTyp==c.PolyTyp&&b.WindDelta!=c.WindDelta&&this.m_ClipType==f.ClipType.ctUnion?0===b.WindDelta?h&&(this.AddOutPt(b,k),d&&(b.OutIdx=-1)):d&&(this.AddOutPt(c,k),h&&(c.OutIdx=-1)):b.PolyTyp!=c.PolyTyp&&(0!==b.WindDelta||1!=Math.abs(c.WindCnt)||this.m_ClipType==f.ClipType.ctUnion&&
+0!==c.WindCnt2?0!==c.WindDelta||1!=Math.abs(b.WindCnt)||this.m_ClipType==f.ClipType.ctUnion&&0!==b.WindCnt2||(this.AddOutPt(c,k),h&&(c.OutIdx=-1)):(this.AddOutPt(b,k),d&&(b.OutIdx=-1)))};f.Clipper.prototype.DeleteFromAEL=function(b){var c=b.PrevInAEL,k=b.NextInAEL;if(null!==c||null!==k||b==this.m_ActiveEdges)null!==c?c.NextInAEL=k:this.m_ActiveEdges=k,null!==k&&(k.PrevInAEL=c),b.NextInAEL=null,b.PrevInAEL=null};f.Clipper.prototype.DeleteFromSEL=function(b){var c=b.PrevInSEL,k=b.NextInSEL;if(null!==
+c||null!==k||b==this.m_SortedEdges)null!==c?c.NextInSEL=k:this.m_SortedEdges=k,null!==k&&(k.PrevInSEL=c),b.NextInSEL=null,b.PrevInSEL=null};f.Clipper.prototype.UpdateEdgeIntoAEL=function(b){null===b.NextInLML&&f.Error("UpdateEdgeIntoAEL: invalid call");var c=b.PrevInAEL,k=b.NextInAEL;b.NextInLML.OutIdx=b.OutIdx;null!==c?c.NextInAEL=b.NextInLML:this.m_ActiveEdges=b.NextInLML;null!==k&&(k.PrevInAEL=b.NextInLML);b.NextInLML.Side=b.Side;b.NextInLML.WindDelta=b.WindDelta;b.NextInLML.WindCnt=b.WindCnt;
+b.NextInLML.WindCnt2=b.WindCnt2;b=b.NextInLML;b.Curr.X=b.Bot.X;b.Curr.Y=b.Bot.Y;f.use_xyz&&(b.Curr.Z=b.Bot.Z);b.PrevInAEL=c;b.NextInAEL=k;f.ClipperBase.IsHorizontal(b)||this.InsertScanbeam(b.Top.Y);return b};f.Clipper.prototype.ProcessHorizontals=function(b){for(var c=this.m_SortedEdges;null!==c;)this.DeleteFromSEL(c),this.ProcessHorizontal(c,b),c=this.m_SortedEdges};f.Clipper.prototype.GetHorzDirection=function(b,c){b.Bot.X<b.Top.X?(c.Left=b.Bot.X,c.Right=b.Top.X,c.Dir=f.Direction.dLeftToRight):
+(c.Left=b.Top.X,c.Right=b.Bot.X,c.Dir=f.Direction.dRightToLeft)};f.Clipper.prototype.ProcessHorizontal=function(b,c){var k={Dir:null,Left:null,Right:null};this.GetHorzDirection(b,k);for(var d=k.Dir,h=k.Left,n=k.Right,J=b,p=null;null!==J.NextInLML&&f.ClipperBase.IsHorizontal(J.NextInLML);)J=J.NextInLML;for(null===J.NextInLML&&(p=this.GetMaximaPair(J));;){for(var t=b==J,B=this.GetNextInAEL(b,d);null!==B&&!(B.Curr.X==b.Top.X&&null!==b.NextInLML&&B.Dx<b.NextInLML.Dx);){k=this.GetNextInAEL(B,d);if(d==
+f.Direction.dLeftToRight&&B.Curr.X<=n||d==f.Direction.dRightToLeft&&B.Curr.X>=h){if(B==p&&t){if(0<=b.OutIdx){d=this.AddOutPt(b,b.Top);for(k=this.m_SortedEdges;null!==k;)0<=k.OutIdx&&this.HorzSegmentsOverlap(b.Bot.X,b.Top.X,k.Bot.X,k.Top.X)&&(h=this.AddOutPt(k,k.Bot),this.AddJoin(h,d,k.Top)),k=k.NextInSEL;this.AddGhostJoin(d,b.Bot);this.AddLocalMaxPoly(b,p,b.Top)}this.DeleteFromAEL(b);this.DeleteFromAEL(p);return}if(d==f.Direction.dLeftToRight){var F=new f.IntPoint(B.Curr.X,b.Curr.Y);this.IntersectEdges(b,
+B,F)}else F=new f.IntPoint(B.Curr.X,b.Curr.Y),this.IntersectEdges(B,b,F);this.SwapPositionsInAEL(b,B)}else if(d==f.Direction.dLeftToRight&&B.Curr.X>=n||d==f.Direction.dRightToLeft&&B.Curr.X<=h)break;B=k}if(null!==b.NextInLML&&f.ClipperBase.IsHorizontal(b.NextInLML))b=this.UpdateEdgeIntoAEL(b),0<=b.OutIdx&&this.AddOutPt(b,b.Bot),k={Dir:d,Left:h,Right:n},this.GetHorzDirection(b,k),d=k.Dir,h=k.Left,n=k.Right;else break}null!==b.NextInLML?0<=b.OutIdx?(d=this.AddOutPt(b,b.Top),c&&this.AddGhostJoin(d,b.Bot),
+b=this.UpdateEdgeIntoAEL(b),0!==b.WindDelta&&(p=b.PrevInAEL,k=b.NextInAEL,null!==p&&p.Curr.X==b.Bot.X&&p.Curr.Y==b.Bot.Y&&0!==p.WindDelta&&0<=p.OutIdx&&p.Curr.Y>p.Top.Y&&f.ClipperBase.SlopesEqual(b,p,this.m_UseFullRange)?(h=this.AddOutPt(p,b.Bot),this.AddJoin(d,h,b.Top)):null!==k&&k.Curr.X==b.Bot.X&&k.Curr.Y==b.Bot.Y&&0!==k.WindDelta&&0<=k.OutIdx&&k.Curr.Y>k.Top.Y&&f.ClipperBase.SlopesEqual(b,k,this.m_UseFullRange)&&(h=this.AddOutPt(k,b.Bot),this.AddJoin(d,h,b.Top)))):this.UpdateEdgeIntoAEL(b):(0<=
+b.OutIdx&&this.AddOutPt(b,b.Top),this.DeleteFromAEL(b))};f.Clipper.prototype.GetNextInAEL=function(b,c){return c==f.Direction.dLeftToRight?b.NextInAEL:b.PrevInAEL};f.Clipper.prototype.IsMinima=function(b){return null!==b&&b.Prev.NextInLML!=b&&b.Next.NextInLML!=b};f.Clipper.prototype.IsMaxima=function(b,c){return null!==b&&b.Top.Y==c&&null===b.NextInLML};f.Clipper.prototype.IsIntermediate=function(b,c){return b.Top.Y==c&&null!==b.NextInLML};f.Clipper.prototype.GetMaximaPair=function(b){var c=null;
+f.IntPoint.op_Equality(b.Next.Top,b.Top)&&null===b.Next.NextInLML?c=b.Next:f.IntPoint.op_Equality(b.Prev.Top,b.Top)&&null===b.Prev.NextInLML&&(c=b.Prev);return null===c||-2!=c.OutIdx&&(c.NextInAEL!=c.PrevInAEL||f.ClipperBase.IsHorizontal(c))?c:null};f.Clipper.prototype.ProcessIntersections=function(b){if(null==this.m_ActiveEdges)return!0;try{this.BuildIntersectList(b);if(0==this.m_IntersectList.length)return!0;if(1==this.m_IntersectList.length||this.FixupIntersectionOrder())this.ProcessIntersectList();
+else return!1}catch(c){this.m_SortedEdges=null,this.m_IntersectList.length=0,f.Error("ProcessIntersections error")}this.m_SortedEdges=null;return!0};f.Clipper.prototype.BuildIntersectList=function(b){if(null!==this.m_ActiveEdges){var c=this.m_ActiveEdges;for(this.m_SortedEdges=c;null!==c;)c.PrevInSEL=c.PrevInAEL,c.NextInSEL=c.NextInAEL,c.Curr.X=f.Clipper.TopX(c,b),c=c.NextInAEL;for(var k=!0;k&&null!==this.m_SortedEdges;){k=!1;for(c=this.m_SortedEdges;null!==c.NextInSEL;){b=c.NextInSEL;var d=new f.IntPoint;
+c.Curr.X>b.Curr.X?(this.IntersectPoint(c,b,d),k=new f.IntersectNode,k.Edge1=c,k.Edge2=b,k.Pt.X=d.X,k.Pt.Y=d.Y,f.use_xyz&&(k.Pt.Z=d.Z),this.m_IntersectList.push(k),this.SwapPositionsInSEL(c,b),k=!0):c=b}if(null!==c.PrevInSEL)c.PrevInSEL.NextInSEL=null;else break}this.m_SortedEdges=null}};f.Clipper.prototype.EdgesAdjacent=function(b){return b.Edge1.NextInSEL==b.Edge2||b.Edge1.PrevInSEL==b.Edge2};f.Clipper.IntersectNodeSort=function(b,c){return c.Pt.Y-b.Pt.Y};f.Clipper.prototype.FixupIntersectionOrder=
+function(){this.m_IntersectList.sort(this.m_IntersectNodeComparer);this.CopyAELToSEL();for(var b=this.m_IntersectList.length,c=0;c<b;c++){if(!this.EdgesAdjacent(this.m_IntersectList[c])){for(var k=c+1;k<b&&!this.EdgesAdjacent(this.m_IntersectList[k]);)k++;if(k==b)return!1;var f=this.m_IntersectList[c];this.m_IntersectList[c]=this.m_IntersectList[k];this.m_IntersectList[k]=f}this.SwapPositionsInSEL(this.m_IntersectList[c].Edge1,this.m_IntersectList[c].Edge2)}return!0};f.Clipper.prototype.ProcessIntersectList=
+function(){for(var b=0,c=this.m_IntersectList.length;b<c;b++){var k=this.m_IntersectList[b];this.IntersectEdges(k.Edge1,k.Edge2,k.Pt);this.SwapPositionsInAEL(k.Edge1,k.Edge2)}this.m_IntersectList.length=0};F=function(b){return 0>b?Math.ceil(b-.5):Math.round(b)};Wb=function(b){return 0>b?Math.ceil(b-.5):Math.floor(b+.5)};Ab=function(b){return 0>b?-Math.round(Math.abs(b)):Math.round(b)};Bb=function(b){if(0>b)return b-=.5,-2147483648>b?Math.ceil(b):b|0;b+=.5;return 2147483647<b?Math.floor(b):b|0};f.Clipper.Round=
+va?F:ba?Ab:ub?Bb:Wb;f.Clipper.TopX=function(b,c){return c==b.Top.Y?b.Top.X:b.Bot.X+f.Clipper.Round(b.Dx*(c-b.Bot.Y))};f.Clipper.prototype.IntersectPoint=function(b,c,k){k.X=0;k.Y=0;var d,h;if(b.Dx==c.Dx)k.Y=b.Curr.Y,k.X=f.Clipper.TopX(b,k.Y);else{if(0===b.Delta.X)k.X=b.Bot.X,f.ClipperBase.IsHorizontal(c)?k.Y=c.Bot.Y:(h=c.Bot.Y-c.Bot.X/c.Dx,k.Y=f.Clipper.Round(k.X/c.Dx+h));else if(0===c.Delta.X)k.X=c.Bot.X,f.ClipperBase.IsHorizontal(b)?k.Y=b.Bot.Y:(d=b.Bot.Y-b.Bot.X/b.Dx,k.Y=f.Clipper.Round(k.X/b.Dx+
+d));else{d=b.Bot.X-b.Bot.Y*b.Dx;h=c.Bot.X-c.Bot.Y*c.Dx;var n=(h-d)/(b.Dx-c.Dx);k.Y=f.Clipper.Round(n);k.X=Math.abs(b.Dx)<Math.abs(c.Dx)?f.Clipper.Round(b.Dx*n+d):f.Clipper.Round(c.Dx*n+h)}if(k.Y<b.Top.Y||k.Y<c.Top.Y){if(b.Top.Y>c.Top.Y)return k.Y=b.Top.Y,k.X=f.Clipper.TopX(c,b.Top.Y),k.X<b.Top.X;k.Y=c.Top.Y;k.X=Math.abs(b.Dx)<Math.abs(c.Dx)?f.Clipper.TopX(b,k.Y):f.Clipper.TopX(c,k.Y)}k.Y>b.Curr.Y&&(k.Y=b.Curr.Y,k.X=Math.abs(b.Dx)>Math.abs(c.Dx)?f.Clipper.TopX(c,k.Y):f.Clipper.TopX(b,k.Y))}};f.Clipper.prototype.ProcessEdgesAtTopOfScanbeam=
+function(b){for(var c=this.m_ActiveEdges;null!==c;){var k=this.IsMaxima(c,b);k&&(k=this.GetMaximaPair(c),k=null===k||!f.ClipperBase.IsHorizontal(k));if(k){var d=c.PrevInAEL;this.DoMaxima(c);c=null===d?this.m_ActiveEdges:d.NextInAEL}else{this.IsIntermediate(c,b)&&f.ClipperBase.IsHorizontal(c.NextInLML)?(c=this.UpdateEdgeIntoAEL(c),0<=c.OutIdx&&this.AddOutPt(c,c.Bot),this.AddEdgeToSEL(c)):(c.Curr.X=f.Clipper.TopX(c,b),c.Curr.Y=b);if(this.StrictlySimple&&(d=c.PrevInAEL,0<=c.OutIdx&&0!==c.WindDelta&&
+null!==d&&0<=d.OutIdx&&d.Curr.X==c.Curr.X&&0!==d.WindDelta)){var h=new f.IntPoint(c.Curr);f.use_xyz&&this.SetZ(h,d,c);k=this.AddOutPt(d,h);d=this.AddOutPt(c,h);this.AddJoin(k,d,h)}c=c.NextInAEL}}this.ProcessHorizontals(!0);for(c=this.m_ActiveEdges;null!==c;)this.IsIntermediate(c,b)&&(k=null,0<=c.OutIdx&&(k=this.AddOutPt(c,c.Top)),c=this.UpdateEdgeIntoAEL(c),d=c.PrevInAEL,h=c.NextInAEL,null!==d&&d.Curr.X==c.Bot.X&&d.Curr.Y==c.Bot.Y&&null!==k&&0<=d.OutIdx&&d.Curr.Y>d.Top.Y&&f.ClipperBase.SlopesEqual(c,
+d,this.m_UseFullRange)&&0!==c.WindDelta&&0!==d.WindDelta?(d=this.AddOutPt(d,c.Bot),this.AddJoin(k,d,c.Top)):null!==h&&h.Curr.X==c.Bot.X&&h.Curr.Y==c.Bot.Y&&null!==k&&0<=h.OutIdx&&h.Curr.Y>h.Top.Y&&f.ClipperBase.SlopesEqual(c,h,this.m_UseFullRange)&&0!==c.WindDelta&&0!==h.WindDelta&&(d=this.AddOutPt(h,c.Bot),this.AddJoin(k,d,c.Top))),c=c.NextInAEL};f.Clipper.prototype.DoMaxima=function(b){var c=this.GetMaximaPair(b);if(null===c)0<=b.OutIdx&&this.AddOutPt(b,b.Top),this.DeleteFromAEL(b);else{for(var k=
+b.NextInAEL;null!==k&&k!=c;)this.IntersectEdges(b,k,b.Top),this.SwapPositionsInAEL(b,k),k=b.NextInAEL;-1==b.OutIdx&&-1==c.OutIdx?(this.DeleteFromAEL(b),this.DeleteFromAEL(c)):0<=b.OutIdx&&0<=c.OutIdx?(0<=b.OutIdx&&this.AddLocalMaxPoly(b,c,b.Top),this.DeleteFromAEL(b),this.DeleteFromAEL(c)):f.use_lines&&0===b.WindDelta?(0<=b.OutIdx&&(this.AddOutPt(b,b.Top),b.OutIdx=-1),this.DeleteFromAEL(b),0<=c.OutIdx&&(this.AddOutPt(c,b.Top),c.OutIdx=-1),this.DeleteFromAEL(c)):f.Error("DoMaxima error")}};f.Clipper.ReversePaths=
+function(b){for(var c=0,k=b.length;c<k;c++)b[c].reverse()};f.Clipper.Orientation=function(b){return 0<=f.Clipper.Area(b)};f.Clipper.prototype.PointCount=function(b){if(null===b)return 0;var c=0,k=b;do c++,k=k.Next;while(k!=b);return c};f.Clipper.prototype.BuildResult=function(b){f.Clear(b);for(var c=0,k=this.m_PolyOuts.length;c<k;c++){var d=this.m_PolyOuts[c];if(null!==d.Pts){d=d.Pts.Prev;var h=this.PointCount(d);if(!(2>h)){for(var n=Array(h),p=0;p<h;p++)n[p]=d.Pt,d=d.Prev;b.push(n)}}}};f.Clipper.prototype.BuildResult2=
+function(b){b.Clear();for(var c=0,k=this.m_PolyOuts.length;c<k;c++){var d=this.m_PolyOuts[c],h=this.PointCount(d.Pts);if(!(d.IsOpen&&2>h||!d.IsOpen&&3>h)){this.FixHoleLinkage(d);var n=new f.PolyNode;b.m_AllPolys.push(n);d.PolyNode=n;n.m_polygon.length=h;d=d.Pts.Prev;for(var p=0;p<h;p++)n.m_polygon[p]=d.Pt,d=d.Prev}}c=0;for(k=this.m_PolyOuts.length;c<k;c++)d=this.m_PolyOuts[c],null!==d.PolyNode&&(d.IsOpen?(d.PolyNode.IsOpen=!0,b.AddChild(d.PolyNode)):null!==d.FirstLeft&&null!=d.FirstLeft.PolyNode?
+d.FirstLeft.PolyNode.AddChild(d.PolyNode):b.AddChild(d.PolyNode))};f.Clipper.prototype.FixupOutPolygon=function(b){var c=null;b.BottomPt=null;for(var k=b.Pts;;){if(k.Prev==k||k.Prev==k.Next){b.Pts=null;return}if(f.IntPoint.op_Equality(k.Pt,k.Next.Pt)||f.IntPoint.op_Equality(k.Pt,k.Prev.Pt)||f.ClipperBase.SlopesEqual(k.Prev.Pt,k.Pt,k.Next.Pt,this.m_UseFullRange)&&(!this.PreserveCollinear||!this.Pt2IsBetweenPt1AndPt3(k.Prev.Pt,k.Pt,k.Next.Pt)))c=null,k.Prev.Next=k.Next,k=k.Next.Prev=k.Prev;else if(k==
+c)break;else null===c&&(c=k),k=k.Next}b.Pts=k};f.Clipper.prototype.DupOutPt=function(b,c){var k=new f.OutPt;k.Pt.X=b.Pt.X;k.Pt.Y=b.Pt.Y;f.use_xyz&&(k.Pt.Z=b.Pt.Z);k.Idx=b.Idx;c?(k.Next=b.Next,k.Prev=b,b.Next.Prev=k,b.Next=k):(k.Prev=b.Prev,k.Next=b,b.Prev.Next=k,b.Prev=k);return k};f.Clipper.prototype.GetOverlap=function(b,c,k,f,d){b<c?k<f?(d.Left=Math.max(b,k),d.Right=Math.min(c,f)):(d.Left=Math.max(b,f),d.Right=Math.min(c,k)):k<f?(d.Left=Math.max(c,k),d.Right=Math.min(b,f)):(d.Left=Math.max(c,f),
+d.Right=Math.min(b,k));return d.Left<d.Right};f.Clipper.prototype.JoinHorz=function(b,c,k,d,h,n){var U=b.Pt.X>c.Pt.X?f.Direction.dRightToLeft:f.Direction.dLeftToRight;d=k.Pt.X>d.Pt.X?f.Direction.dRightToLeft:f.Direction.dLeftToRight;if(U==d)return!1;if(U==f.Direction.dLeftToRight){for(;b.Next.Pt.X<=h.X&&b.Next.Pt.X>=b.Pt.X&&b.Next.Pt.Y==h.Y;)b=b.Next;n&&b.Pt.X!=h.X&&(b=b.Next);c=this.DupOutPt(b,!n);f.IntPoint.op_Inequality(c.Pt,h)&&(b=c,b.Pt.X=h.X,b.Pt.Y=h.Y,f.use_xyz&&(b.Pt.Z=h.Z),c=this.DupOutPt(b,
+!n))}else{for(;b.Next.Pt.X>=h.X&&b.Next.Pt.X<=b.Pt.X&&b.Next.Pt.Y==h.Y;)b=b.Next;n||b.Pt.X==h.X||(b=b.Next);c=this.DupOutPt(b,n);f.IntPoint.op_Inequality(c.Pt,h)&&(b=c,b.Pt.X=h.X,b.Pt.Y=h.Y,f.use_xyz&&(b.Pt.Z=h.Z),c=this.DupOutPt(b,n))}if(d==f.Direction.dLeftToRight){for(;k.Next.Pt.X<=h.X&&k.Next.Pt.X>=k.Pt.X&&k.Next.Pt.Y==h.Y;)k=k.Next;n&&k.Pt.X!=h.X&&(k=k.Next);d=this.DupOutPt(k,!n);f.IntPoint.op_Inequality(d.Pt,h)&&(k=d,k.Pt.X=h.X,k.Pt.Y=h.Y,f.use_xyz&&(k.Pt.Z=h.Z),d=this.DupOutPt(k,!n))}else{for(;k.Next.Pt.X>=
+h.X&&k.Next.Pt.X<=k.Pt.X&&k.Next.Pt.Y==h.Y;)k=k.Next;n||k.Pt.X==h.X||(k=k.Next);d=this.DupOutPt(k,n);f.IntPoint.op_Inequality(d.Pt,h)&&(k=d,k.Pt.X=h.X,k.Pt.Y=h.Y,f.use_xyz&&(k.Pt.Z=h.Z),d=this.DupOutPt(k,n))}U==f.Direction.dLeftToRight==n?(b.Prev=k,k.Next=b,c.Next=d,d.Prev=c):(b.Next=k,k.Prev=b,c.Prev=d,d.Next=c);return!0};f.Clipper.prototype.JoinPoints=function(b,c,k){var d=b.OutPt1,h;new f.OutPt;var n=b.OutPt2,p;new f.OutPt;if((p=b.OutPt1.Pt.Y==b.OffPt.Y)&&f.IntPoint.op_Equality(b.OffPt,b.OutPt1.Pt)&&
+f.IntPoint.op_Equality(b.OffPt,b.OutPt2.Pt)){if(c!=k)return!1;for(h=b.OutPt1.Next;h!=d&&f.IntPoint.op_Equality(h.Pt,b.OffPt);)h=h.Next;h=h.Pt.Y>b.OffPt.Y;for(p=b.OutPt2.Next;p!=n&&f.IntPoint.op_Equality(p.Pt,b.OffPt);)p=p.Next;if(h==p.Pt.Y>b.OffPt.Y)return!1;h?(h=this.DupOutPt(d,!1),p=this.DupOutPt(n,!0),d.Prev=n,n.Next=d,h.Next=p,p.Prev=h):(h=this.DupOutPt(d,!0),p=this.DupOutPt(n,!1),d.Next=n,n.Prev=d,h.Prev=p,p.Next=h);b.OutPt1=d;b.OutPt2=h;return!0}if(p){for(h=d;d.Prev.Pt.Y==d.Pt.Y&&d.Prev!=h&&
+d.Prev!=n;)d=d.Prev;for(;h.Next.Pt.Y==h.Pt.Y&&h.Next!=d&&h.Next!=n;)h=h.Next;if(h.Next==d||h.Next==n)return!1;for(p=n;n.Prev.Pt.Y==n.Pt.Y&&n.Prev!=p&&n.Prev!=h;)n=n.Prev;for(;p.Next.Pt.Y==p.Pt.Y&&p.Next!=n&&p.Next!=d;)p=p.Next;if(p.Next==n||p.Next==d)return!1;k={Left:null,Right:null};if(!this.GetOverlap(d.Pt.X,h.Pt.X,n.Pt.X,p.Pt.X,k))return!1;c=k.Left;var t=k.Right;k=new f.IntPoint;d.Pt.X>=c&&d.Pt.X<=t?(k.X=d.Pt.X,k.Y=d.Pt.Y,f.use_xyz&&(k.Z=d.Pt.Z),c=d.Pt.X>h.Pt.X):n.Pt.X>=c&&n.Pt.X<=t?(k.X=n.Pt.X,
+k.Y=n.Pt.Y,f.use_xyz&&(k.Z=n.Pt.Z),c=n.Pt.X>p.Pt.X):h.Pt.X>=c&&h.Pt.X<=t?(k.X=h.Pt.X,k.Y=h.Pt.Y,f.use_xyz&&(k.Z=h.Pt.Z),c=h.Pt.X>d.Pt.X):(k.X=p.Pt.X,k.Y=p.Pt.Y,f.use_xyz&&(k.Z=p.Pt.Z),c=p.Pt.X>n.Pt.X);b.OutPt1=d;b.OutPt2=n;return this.JoinHorz(d,h,n,p,k,c)}for(h=d.Next;f.IntPoint.op_Equality(h.Pt,d.Pt)&&h!=d;)h=h.Next;if(t=h.Pt.Y>d.Pt.Y||!f.ClipperBase.SlopesEqual(d.Pt,h.Pt,b.OffPt,this.m_UseFullRange)){for(h=d.Prev;f.IntPoint.op_Equality(h.Pt,d.Pt)&&h!=d;)h=h.Prev;if(h.Pt.Y>d.Pt.Y||!f.ClipperBase.SlopesEqual(d.Pt,
+h.Pt,b.OffPt,this.m_UseFullRange))return!1}for(p=n.Next;f.IntPoint.op_Equality(p.Pt,n.Pt)&&p!=n;)p=p.Next;var B=p.Pt.Y>n.Pt.Y||!f.ClipperBase.SlopesEqual(n.Pt,p.Pt,b.OffPt,this.m_UseFullRange);if(B){for(p=n.Prev;f.IntPoint.op_Equality(p.Pt,n.Pt)&&p!=n;)p=p.Prev;if(p.Pt.Y>n.Pt.Y||!f.ClipperBase.SlopesEqual(n.Pt,p.Pt,b.OffPt,this.m_UseFullRange))return!1}if(h==d||p==n||h==p||c==k&&t==B)return!1;t?(h=this.DupOutPt(d,!1),p=this.DupOutPt(n,!0),d.Prev=n,n.Next=d,h.Next=p,p.Prev=h):(h=this.DupOutPt(d,!0),
+p=this.DupOutPt(n,!1),d.Next=n,n.Prev=d,h.Prev=p,p.Next=h);b.OutPt1=d;b.OutPt2=h;return!0};f.Clipper.GetBounds=function(b){for(var c=0,k=b.length;c<k&&0==b[c].length;)c++;if(c==k)return new f.IntRect(0,0,0,0);var d=new f.IntRect;d.left=b[c][0].X;d.right=d.left;d.top=b[c][0].Y;for(d.bottom=d.top;c<k;c++)for(var h=0,n=b[c].length;h<n;h++)b[c][h].X<d.left?d.left=b[c][h].X:b[c][h].X>d.right&&(d.right=b[c][h].X),b[c][h].Y<d.top?d.top=b[c][h].Y:b[c][h].Y>d.bottom&&(d.bottom=b[c][h].Y);return d};f.Clipper.prototype.GetBounds2=
+function(b){var c=b,k=new f.IntRect;k.left=b.Pt.X;k.right=b.Pt.X;k.top=b.Pt.Y;k.bottom=b.Pt.Y;for(b=b.Next;b!=c;)b.Pt.X<k.left&&(k.left=b.Pt.X),b.Pt.X>k.right&&(k.right=b.Pt.X),b.Pt.Y<k.top&&(k.top=b.Pt.Y),b.Pt.Y>k.bottom&&(k.bottom=b.Pt.Y),b=b.Next;return k};f.Clipper.PointInPolygon=function(b,c){var k=0,f=c.length;if(3>f)return 0;for(var d=c[0],h=1;h<=f;++h){var n=h==f?c[0]:c[h];if(n.Y==b.Y&&(n.X==b.X||d.Y==b.Y&&n.X>b.X==d.X<b.X))return-1;if(d.Y<b.Y!=n.Y<b.Y)if(d.X>=b.X)if(n.X>b.X)k=1-k;else{var p=
+(d.X-b.X)*(n.Y-b.Y)-(n.X-b.X)*(d.Y-b.Y);if(0==p)return-1;0<p==n.Y>d.Y&&(k=1-k)}else if(n.X>b.X){p=(d.X-b.X)*(n.Y-b.Y)-(n.X-b.X)*(d.Y-b.Y);if(0==p)return-1;0<p==n.Y>d.Y&&(k=1-k)}d=n}return k};f.Clipper.prototype.PointInPolygon=function(b,c){var k=0,f=c,d=b.X;b=b.Y;var h=c.Pt.X,n=c.Pt.Y;do{c=c.Next;var p=c.Pt.X,t=c.Pt.Y;if(t==b&&(p==d||n==b&&p>d==h<d))return-1;if(n<b!=t<b)if(h>=d)if(p>d)k=1-k;else{h=(h-d)*(t-b)-(p-d)*(n-b);if(0==h)return-1;0<h==t>n&&(k=1-k)}else if(p>d){h=(h-d)*(t-b)-(p-d)*(n-b);if(0==
+h)return-1;0<h==t>n&&(k=1-k)}h=p;n=t}while(f!=c);return k};f.Clipper.prototype.Poly2ContainsPoly1=function(b,c){var k=b;do{var f=this.PointInPolygon(k.Pt,c);if(0<=f)return 0<f;k=k.Next}while(k!=b);return!0};f.Clipper.prototype.FixupFirstLefts1=function(b,c){for(var k=0,f=this.m_PolyOuts.length;k<f;k++){var d=this.m_PolyOuts[k];null!=d.Pts&&null!=d.FirstLeft&&this.ParseFirstLeft(d.FirstLeft)==b&&this.Poly2ContainsPoly1(d.Pts,c.Pts)&&(d.FirstLeft=c)}};f.Clipper.prototype.FixupFirstLefts2=function(b,
+c){for(var k=0,f=this.m_PolyOuts,d=f.length,h=f[k];k<d;k++,h=f[k])h.FirstLeft==b&&(h.FirstLeft=c)};f.Clipper.ParseFirstLeft=function(b){for(;null!=b&&null==b.Pts;)b=b.FirstLeft;return b};f.Clipper.prototype.JoinCommonEdges=function(){for(var b=0,c=this.m_Joins.length;b<c;b++){var k=this.m_Joins[b],d=this.GetOutRec(k.OutPt1.Idx),h=this.GetOutRec(k.OutPt2.Idx);if(null!=d.Pts&&null!=h.Pts){var n=d==h?d:this.Param1RightOfParam2(d,h)?h:this.Param1RightOfParam2(h,d)?d:this.GetLowermostRec(d,h);if(this.JoinPoints(k,
+d,h))if(d==h){d.Pts=k.OutPt1;d.BottomPt=null;h=this.CreateOutRec();h.Pts=k.OutPt2;this.UpdateOutPtIdxs(h);if(this.m_UsingPolyTree){n=0;for(var p=this.m_PolyOuts.length;n<p-1;n++){var t=this.m_PolyOuts[n];null!=t.Pts&&f.Clipper.ParseFirstLeft(t.FirstLeft)==d&&t.IsHole!=d.IsHole&&this.Poly2ContainsPoly1(t.Pts,k.OutPt2)&&(t.FirstLeft=h)}}this.Poly2ContainsPoly1(h.Pts,d.Pts)?(h.IsHole=!d.IsHole,h.FirstLeft=d,this.m_UsingPolyTree&&this.FixupFirstLefts2(h,d),(h.IsHole^this.ReverseSolution)==0<this.Area(h)&&
+this.ReversePolyPtLinks(h.Pts)):this.Poly2ContainsPoly1(d.Pts,h.Pts)?(h.IsHole=d.IsHole,d.IsHole=!h.IsHole,h.FirstLeft=d.FirstLeft,d.FirstLeft=h,this.m_UsingPolyTree&&this.FixupFirstLefts2(d,h),(d.IsHole^this.ReverseSolution)==0<this.Area(d)&&this.ReversePolyPtLinks(d.Pts)):(h.IsHole=d.IsHole,h.FirstLeft=d.FirstLeft,this.m_UsingPolyTree&&this.FixupFirstLefts1(d,h))}else h.Pts=null,h.BottomPt=null,h.Idx=d.Idx,d.IsHole=n.IsHole,n==h&&(d.FirstLeft=h.FirstLeft),h.FirstLeft=d,this.m_UsingPolyTree&&this.FixupFirstLefts2(h,
+d)}}};f.Clipper.prototype.UpdateOutPtIdxs=function(b){var c=b.Pts;do c.Idx=b.Idx,c=c.Prev;while(c!=b.Pts)};f.Clipper.prototype.DoSimplePolygons=function(){for(var b=0;b<this.m_PolyOuts.length;){var c=this.m_PolyOuts[b++],k=c.Pts;if(null!=k&&!c.IsOpen){do{for(var d=k.Next;d!=c.Pts;){if(f.IntPoint.op_Equality(k.Pt,d.Pt)&&d.Next!=k&&d.Prev!=k){var h=k.Prev,n=d.Prev;k.Prev=n;n.Next=k;d.Prev=h;h.Next=d;c.Pts=k;h=this.CreateOutRec();h.Pts=d;this.UpdateOutPtIdxs(h);this.Poly2ContainsPoly1(h.Pts,c.Pts)?(h.IsHole=
+!c.IsHole,h.FirstLeft=c,this.m_UsingPolyTree&&this.FixupFirstLefts2(h,c)):this.Poly2ContainsPoly1(c.Pts,h.Pts)?(h.IsHole=c.IsHole,c.IsHole=!h.IsHole,h.FirstLeft=c.FirstLeft,c.FirstLeft=h,this.m_UsingPolyTree&&this.FixupFirstLefts2(c,h)):(h.IsHole=c.IsHole,h.FirstLeft=c.FirstLeft,this.m_UsingPolyTree&&this.FixupFirstLefts1(c,h));d=k}d=d.Next}k=k.Next}while(k!=c.Pts)}}};f.Clipper.Area=function(b){var c=b.length;if(3>c)return 0;for(var k=0,d=0,f=c-1;d<c;++d)k+=(b[f].X+b[d].X)*(b[f].Y-b[d].Y),f=d;return.5*
+-k};f.Clipper.prototype.Area=function(b){var c=b.Pts;if(null==c)return 0;var k=0;do k+=(c.Prev.Pt.X+c.Pt.X)*(c.Prev.Pt.Y-c.Pt.Y),c=c.Next;while(c!=b.Pts);return.5*k};f.Clipper.SimplifyPolygon=function(b,c){var k=[],d=new f.Clipper(0);d.StrictlySimple=!0;d.AddPath(b,f.PolyType.ptSubject,!0);d.Execute(f.ClipType.ctUnion,k,c,c);return k};f.Clipper.SimplifyPolygons=function(b,c){"undefined"==typeof c&&(c=f.PolyFillType.pftEvenOdd);var k=[],d=new f.Clipper(0);d.StrictlySimple=!0;d.AddPaths(b,f.PolyType.ptSubject,
+!0);d.Execute(f.ClipType.ctUnion,k,c,c);return k};f.Clipper.DistanceSqrd=function(b,c){var k=b.X-c.X;b=b.Y-c.Y;return k*k+b*b};f.Clipper.DistanceFromLineSqrd=function(b,c,k){var d=c.Y-k.Y;k=k.X-c.X;c=d*c.X+k*c.Y;c=d*b.X+k*b.Y-c;return c*c/(d*d+k*k)};f.Clipper.SlopesNearCollinear=function(b,c,k,d){return Math.abs(b.X-c.X)>Math.abs(b.Y-c.Y)?b.X>c.X==b.X<k.X?f.Clipper.DistanceFromLineSqrd(b,c,k)<d:c.X>b.X==c.X<k.X?f.Clipper.DistanceFromLineSqrd(c,b,k)<d:f.Clipper.DistanceFromLineSqrd(k,b,c)<d:b.Y>c.Y==
+b.Y<k.Y?f.Clipper.DistanceFromLineSqrd(b,c,k)<d:c.Y>b.Y==c.Y<k.Y?f.Clipper.DistanceFromLineSqrd(c,b,k)<d:f.Clipper.DistanceFromLineSqrd(k,b,c)<d};f.Clipper.PointsAreClose=function(b,c,k){var d=b.X-c.X;b=b.Y-c.Y;return d*d+b*b<=k};f.Clipper.ExcludeOp=function(b){var c=b.Prev;c.Next=b.Next;b.Next.Prev=c;c.Idx=0;return c};f.Clipper.CleanPolygon=function(b,c){"undefined"==typeof c&&(c=1.415);var k=b.length;if(0==k)return[];for(var d=Array(k),h=0;h<k;++h)d[h]=new f.OutPt;for(h=0;h<k;++h)d[h].Pt=b[h],d[h].Next=
+d[(h+1)%k],d[h].Next.Prev=d[h],d[h].Idx=0;h=c*c;for(d=d[0];0==d.Idx&&d.Next!=d.Prev;)f.Clipper.PointsAreClose(d.Pt,d.Prev.Pt,h)?(d=f.Clipper.ExcludeOp(d),k--):f.Clipper.PointsAreClose(d.Prev.Pt,d.Next.Pt,h)?(f.Clipper.ExcludeOp(d.Next),d=f.Clipper.ExcludeOp(d),k-=2):f.Clipper.SlopesNearCollinear(d.Prev.Pt,d.Pt,d.Next.Pt,h)?(d=f.Clipper.ExcludeOp(d),k--):(d.Idx=1,d=d.Next);3>k&&(k=0);b=Array(k);for(h=0;h<k;++h)b[h]=new f.IntPoint(d.Pt),d=d.Next;return b};f.Clipper.CleanPolygons=function(b,c){for(var d=
+Array(b.length),h=0,n=b.length;h<n;h++)d[h]=f.Clipper.CleanPolygon(b[h],c);return d};f.Clipper.Minkowski=function(b,c,d,h){h=h?1:0;var k=b.length,n=c.length,p=[];if(d)for(d=0;d<n;d++){for(var t=Array(k),B=0,U=b.length,F=b[B];B<U;B++,F=b[B])t[B]=new f.IntPoint(c[d].X+F.X,c[d].Y+F.Y);p.push(t)}else for(d=0;d<n;d++){t=Array(k);B=0;U=b.length;for(F=b[B];B<U;B++,F=b[B])t[B]=new f.IntPoint(c[d].X-F.X,c[d].Y-F.Y);p.push(t)}b=[];for(d=0;d<n-1+h;d++)for(B=0;B<k;B++)c=[],c.push(p[d%n][B%k]),c.push(p[(d+1)%
+n][B%k]),c.push(p[(d+1)%n][(B+1)%k]),c.push(p[d%n][(B+1)%k]),f.Clipper.Orientation(c)||c.reverse(),b.push(c);return b};f.Clipper.MinkowskiSum=function(b,c,d){if(c[0]instanceof Array){p=c;c=new f.Paths;for(var k=new f.Clipper,h=0;h<p.length;++h){var n=f.Clipper.Minkowski(b,p[h],!0,d);k.AddPaths(n,f.PolyType.ptSubject,!0);d&&(n=f.Clipper.TranslatePath(p[h],b[0]),k.AddPath(n,f.PolyType.ptClip,!0))}k.Execute(f.ClipType.ctUnion,c,f.PolyFillType.pftNonZero,f.PolyFillType.pftNonZero);return c}var p=f.Clipper.Minkowski(b,
+c,!0,d);k=new f.Clipper;k.AddPaths(p,f.PolyType.ptSubject,!0);k.Execute(f.ClipType.ctUnion,p,f.PolyFillType.pftNonZero,f.PolyFillType.pftNonZero);return p};f.Clipper.TranslatePath=function(b,c){for(var d=new f.Path,h=0;h<b.length;h++)d.push(new f.IntPoint(b[h].X+c.X,b[h].Y+c.Y));return d};f.Clipper.MinkowskiDiff=function(b,c){b=f.Clipper.Minkowski(b,c,!1,!0);c=new f.Clipper;c.AddPaths(b,f.PolyType.ptSubject,!0);c.Execute(f.ClipType.ctUnion,b,f.PolyFillType.pftNonZero,f.PolyFillType.pftNonZero);return b};
+f.Clipper.PolyTreeToPaths=function(b){var c=[];f.Clipper.AddPolyNodeToPaths(b,f.Clipper.NodeType.ntAny,c);return c};f.Clipper.AddPolyNodeToPaths=function(b,c,d){var k=!0;switch(c){case f.Clipper.NodeType.ntOpen:return;case f.Clipper.NodeType.ntClosed:k=!b.IsOpen}0<b.m_polygon.length&&k&&d.push(b.m_polygon);k=0;b=b.Childs();for(var h=b.length,n=b[k];k<h;k++,n=b[k])f.Clipper.AddPolyNodeToPaths(n,c,d)};f.Clipper.OpenPathsFromPolyTree=function(b){for(var c=new f.Paths,d=0,h=b.ChildCount();d<h;d++)b.Childs()[d].IsOpen&&
+c.push(b.Childs()[d].m_polygon);return c};f.Clipper.ClosedPathsFromPolyTree=function(b){var c=new f.Paths;f.Clipper.AddPolyNodeToPaths(b,f.Clipper.NodeType.ntClosed,c);return c};ua(f.Clipper,f.ClipperBase);f.Clipper.NodeType={ntAny:0,ntOpen:1,ntClosed:2};f.ClipperOffset=function(b,c){"undefined"==typeof b&&(b=2);"undefined"==typeof c&&(c=f.ClipperOffset.def_arc_tolerance);this.m_destPolys=new f.Paths;this.m_srcPoly=new f.Path;this.m_destPoly=new f.Path;this.m_normals=[];this.m_StepsPerRad=this.m_miterLim=
+this.m_cos=this.m_sin=this.m_sinA=this.m_delta=0;this.m_lowest=new f.IntPoint;this.m_polyNodes=new f.PolyNode;this.MiterLimit=b;this.ArcTolerance=c;this.m_lowest.X=-1};f.ClipperOffset.two_pi=6.28318530717959;f.ClipperOffset.def_arc_tolerance=.25;f.ClipperOffset.prototype.Clear=function(){f.Clear(this.m_polyNodes.Childs());this.m_lowest.X=-1};f.ClipperOffset.Round=f.Clipper.Round;f.ClipperOffset.prototype.AddPath=function(b,c,d){var k=b.length-1;if(!(0>k)){var h=new f.PolyNode;h.m_jointype=c;h.m_endtype=
+d;if(d==f.EndType.etClosedLine||d==f.EndType.etClosedPolygon)for(;0<k&&f.IntPoint.op_Equality(b[0],b[k]);)k--;h.m_polygon.push(b[0]);var n=0;c=0;for(var p=1;p<=k;p++)f.IntPoint.op_Inequality(h.m_polygon[n],b[p])&&(n++,h.m_polygon.push(b[p]),b[p].Y>h.m_polygon[c].Y||b[p].Y==h.m_polygon[c].Y&&b[p].X<h.m_polygon[c].X)&&(c=n);if(!(d==f.EndType.etClosedPolygon&&2>n)&&(this.m_polyNodes.AddChild(h),d==f.EndType.etClosedPolygon))if(0>this.m_lowest.X)this.m_lowest=new f.IntPoint(this.m_polyNodes.ChildCount()-
+1,c);else if(b=this.m_polyNodes.Childs()[this.m_lowest.X].m_polygon[this.m_lowest.Y],h.m_polygon[c].Y>b.Y||h.m_polygon[c].Y==b.Y&&h.m_polygon[c].X<b.X)this.m_lowest=new f.IntPoint(this.m_polyNodes.ChildCount()-1,c)}};f.ClipperOffset.prototype.AddPaths=function(b,c,d){for(var k=0,f=b.length;k<f;k++)this.AddPath(b[k],c,d)};f.ClipperOffset.prototype.FixOrientations=function(){if(0<=this.m_lowest.X&&!f.Clipper.Orientation(this.m_polyNodes.Childs()[this.m_lowest.X].m_polygon))for(var b=0;b<this.m_polyNodes.ChildCount();b++){var c=
+this.m_polyNodes.Childs()[b];(c.m_endtype==f.EndType.etClosedPolygon||c.m_endtype==f.EndType.etClosedLine&&f.Clipper.Orientation(c.m_polygon))&&c.m_polygon.reverse()}else for(b=0;b<this.m_polyNodes.ChildCount();b++)c=this.m_polyNodes.Childs()[b],c.m_endtype!=f.EndType.etClosedLine||f.Clipper.Orientation(c.m_polygon)||c.m_polygon.reverse()};f.ClipperOffset.GetUnitNormal=function(b,c){var d=c.X-b.X;b=c.Y-b.Y;if(0==d&&0==b)return new f.DoublePoint(0,0);c=1/Math.sqrt(d*d+b*b);return new f.DoublePoint(b*
+c,-(d*c))};f.ClipperOffset.prototype.DoOffset=function(b){this.m_destPolys=[];this.m_delta=b;if(f.ClipperBase.near_zero(b))for(var c=0;c<this.m_polyNodes.ChildCount();c++){var d=this.m_polyNodes.Childs()[c];d.m_endtype==f.EndType.etClosedPolygon&&this.m_destPolys.push(d.m_polygon)}else{this.m_miterLim=2<this.MiterLimit?2/(this.MiterLimit*this.MiterLimit):.5;var h=3.14159265358979/Math.acos(1-(0>=this.ArcTolerance?f.ClipperOffset.def_arc_tolerance:this.ArcTolerance>Math.abs(b)*f.ClipperOffset.def_arc_tolerance?
+Math.abs(b)*f.ClipperOffset.def_arc_tolerance:this.ArcTolerance)/Math.abs(b));this.m_sin=Math.sin(f.ClipperOffset.two_pi/h);this.m_cos=Math.cos(f.ClipperOffset.two_pi/h);this.m_StepsPerRad=h/f.ClipperOffset.two_pi;0>b&&(this.m_sin=-this.m_sin);for(c=0;c<this.m_polyNodes.ChildCount();c++){d=this.m_polyNodes.Childs()[c];this.m_srcPoly=d.m_polygon;var n=this.m_srcPoly.length;if(!(0==n||0>=b&&(3>n||d.m_endtype!=f.EndType.etClosedPolygon))){this.m_destPoly=[];if(1==n)if(d.m_jointype==f.JoinType.jtRound){d=
+1;n=0;for(var p=1;p<=h;p++){this.m_destPoly.push(new f.IntPoint(f.ClipperOffset.Round(this.m_srcPoly[0].X+d*b),f.ClipperOffset.Round(this.m_srcPoly[0].Y+n*b)));var t=d;d=d*this.m_cos-this.m_sin*n;n=t*this.m_sin+n*this.m_cos}}else for(n=d=-1,p=0;4>p;++p)this.m_destPoly.push(new f.IntPoint(f.ClipperOffset.Round(this.m_srcPoly[0].X+d*b),f.ClipperOffset.Round(this.m_srcPoly[0].Y+n*b))),0>d?d=1:0>n?n=1:d=-1;else{for(p=this.m_normals.length=0;p<n-1;p++)this.m_normals.push(f.ClipperOffset.GetUnitNormal(this.m_srcPoly[p],
+this.m_srcPoly[p+1]));d.m_endtype==f.EndType.etClosedLine||d.m_endtype==f.EndType.etClosedPolygon?this.m_normals.push(f.ClipperOffset.GetUnitNormal(this.m_srcPoly[n-1],this.m_srcPoly[0])):this.m_normals.push(new f.DoublePoint(this.m_normals[n-2]));if(d.m_endtype==f.EndType.etClosedPolygon)for(t=n-1,p=0;p<n;p++)t=this.OffsetPoint(p,t,d.m_jointype);else if(d.m_endtype==f.EndType.etClosedLine){t=n-1;for(p=0;p<n;p++)t=this.OffsetPoint(p,t,d.m_jointype);this.m_destPolys.push(this.m_destPoly);this.m_destPoly=
+[];t=this.m_normals[n-1];for(p=n-1;0<p;p--)this.m_normals[p]=new f.DoublePoint(-this.m_normals[p-1].X,-this.m_normals[p-1].Y);this.m_normals[0]=new f.DoublePoint(-t.X,-t.Y);t=0;for(p=n-1;0<=p;p--)t=this.OffsetPoint(p,t,d.m_jointype)}else{t=0;for(p=1;p<n-1;++p)t=this.OffsetPoint(p,t,d.m_jointype);d.m_endtype==f.EndType.etOpenButt?(p=n-1,t=new f.IntPoint(f.ClipperOffset.Round(this.m_srcPoly[p].X+this.m_normals[p].X*b),f.ClipperOffset.Round(this.m_srcPoly[p].Y+this.m_normals[p].Y*b)),this.m_destPoly.push(t),
+t=new f.IntPoint(f.ClipperOffset.Round(this.m_srcPoly[p].X-this.m_normals[p].X*b),f.ClipperOffset.Round(this.m_srcPoly[p].Y-this.m_normals[p].Y*b)),this.m_destPoly.push(t)):(p=n-1,t=n-2,this.m_sinA=0,this.m_normals[p]=new f.DoublePoint(-this.m_normals[p].X,-this.m_normals[p].Y),d.m_endtype==f.EndType.etOpenSquare?this.DoSquare(p,t):this.DoRound(p,t));for(p=n-1;0<p;p--)this.m_normals[p]=new f.DoublePoint(-this.m_normals[p-1].X,-this.m_normals[p-1].Y);this.m_normals[0]=new f.DoublePoint(-this.m_normals[1].X,
+-this.m_normals[1].Y);t=n-1;for(p=t-1;0<p;--p)t=this.OffsetPoint(p,t,d.m_jointype);d.m_endtype==f.EndType.etOpenButt?(t=new f.IntPoint(f.ClipperOffset.Round(this.m_srcPoly[0].X-this.m_normals[0].X*b),f.ClipperOffset.Round(this.m_srcPoly[0].Y-this.m_normals[0].Y*b)),this.m_destPoly.push(t),t=new f.IntPoint(f.ClipperOffset.Round(this.m_srcPoly[0].X+this.m_normals[0].X*b),f.ClipperOffset.Round(this.m_srcPoly[0].Y+this.m_normals[0].Y*b)),this.m_destPoly.push(t)):(this.m_sinA=0,d.m_endtype==f.EndType.etOpenSquare?
+this.DoSquare(0,1):this.DoRound(0,1))}}this.m_destPolys.push(this.m_destPoly)}}}};f.ClipperOffset.prototype.Execute=function(){var b=arguments;if(b[0]instanceof f.PolyTree)if(c=b[0],d=b[1],c.Clear(),this.FixOrientations(),this.DoOffset(d),b=new f.Clipper(0),b.AddPaths(this.m_destPolys,f.PolyType.ptSubject,!0),0<d)b.Execute(f.ClipType.ctUnion,c,f.PolyFillType.pftPositive,f.PolyFillType.pftPositive);else if(d=f.Clipper.GetBounds(this.m_destPolys),h=new f.Path,h.push(new f.IntPoint(d.left-10,d.bottom+
+10)),h.push(new f.IntPoint(d.right+10,d.bottom+10)),h.push(new f.IntPoint(d.right+10,d.top-10)),h.push(new f.IntPoint(d.left-10,d.top-10)),b.AddPath(h,f.PolyType.ptSubject,!0),b.ReverseSolution=!0,b.Execute(f.ClipType.ctUnion,c,f.PolyFillType.pftNegative,f.PolyFillType.pftNegative),1==c.ChildCount()&&0<c.Childs()[0].ChildCount())for(b=c.Childs()[0],c.Childs()[0]=b.Childs()[0],c.Childs()[0].m_Parent=c,d=1;d<b.ChildCount();d++)c.AddChild(b.Childs()[d]);else c.Clear();else{var c=b[0],d=b[1];f.Clear(c);
+this.FixOrientations();this.DoOffset(d);b=new f.Clipper(0);b.AddPaths(this.m_destPolys,f.PolyType.ptSubject,!0);if(0<d)b.Execute(f.ClipType.ctUnion,c,f.PolyFillType.pftPositive,f.PolyFillType.pftPositive);else{d=f.Clipper.GetBounds(this.m_destPolys);var h=new f.Path;h.push(new f.IntPoint(d.left-10,d.bottom+10));h.push(new f.IntPoint(d.right+10,d.bottom+10));h.push(new f.IntPoint(d.right+10,d.top-10));h.push(new f.IntPoint(d.left-10,d.top-10));b.AddPath(h,f.PolyType.ptSubject,!0);b.ReverseSolution=
+!0;b.Execute(f.ClipType.ctUnion,c,f.PolyFillType.pftNegative,f.PolyFillType.pftNegative);0<c.length&&c.splice(0,1)}}};f.ClipperOffset.prototype.OffsetPoint=function(b,c,d){this.m_sinA=this.m_normals[c].X*this.m_normals[b].Y-this.m_normals[b].X*this.m_normals[c].Y;if(1>Math.abs(this.m_sinA*this.m_delta)){if(0<this.m_normals[c].X*this.m_normals[b].X+this.m_normals[b].Y*this.m_normals[c].Y)return this.m_destPoly.push(new f.IntPoint(f.ClipperOffset.Round(this.m_srcPoly[b].X+this.m_normals[c].X*this.m_delta),
+f.ClipperOffset.Round(this.m_srcPoly[b].Y+this.m_normals[c].Y*this.m_delta))),c}else 1<this.m_sinA?this.m_sinA=1:-1>this.m_sinA&&(this.m_sinA=-1);if(0>this.m_sinA*this.m_delta)this.m_destPoly.push(new f.IntPoint(f.ClipperOffset.Round(this.m_srcPoly[b].X+this.m_normals[c].X*this.m_delta),f.ClipperOffset.Round(this.m_srcPoly[b].Y+this.m_normals[c].Y*this.m_delta))),this.m_destPoly.push(new f.IntPoint(this.m_srcPoly[b])),this.m_destPoly.push(new f.IntPoint(f.ClipperOffset.Round(this.m_srcPoly[b].X+this.m_normals[b].X*
+this.m_delta),f.ClipperOffset.Round(this.m_srcPoly[b].Y+this.m_normals[b].Y*this.m_delta)));else switch(d){case f.JoinType.jtMiter:d=1+(this.m_normals[b].X*this.m_normals[c].X+this.m_normals[b].Y*this.m_normals[c].Y);d>=this.m_miterLim?this.DoMiter(b,c,d):this.DoSquare(b,c);break;case f.JoinType.jtSquare:this.DoSquare(b,c);break;case f.JoinType.jtRound:this.DoRound(b,c)}return b};f.ClipperOffset.prototype.DoSquare=function(b,c){var d=Math.tan(Math.atan2(this.m_sinA,this.m_normals[c].X*this.m_normals[b].X+
+this.m_normals[c].Y*this.m_normals[b].Y)/4);this.m_destPoly.push(new f.IntPoint(f.ClipperOffset.Round(this.m_srcPoly[b].X+this.m_delta*(this.m_normals[c].X-this.m_normals[c].Y*d)),f.ClipperOffset.Round(this.m_srcPoly[b].Y+this.m_delta*(this.m_normals[c].Y+this.m_normals[c].X*d))));this.m_destPoly.push(new f.IntPoint(f.ClipperOffset.Round(this.m_srcPoly[b].X+this.m_delta*(this.m_normals[b].X+this.m_normals[b].Y*d)),f.ClipperOffset.Round(this.m_srcPoly[b].Y+this.m_delta*(this.m_normals[b].Y-this.m_normals[b].X*
+d))))};f.ClipperOffset.prototype.DoMiter=function(b,c,d){d=this.m_delta/d;this.m_destPoly.push(new f.IntPoint(f.ClipperOffset.Round(this.m_srcPoly[b].X+(this.m_normals[c].X+this.m_normals[b].X)*d),f.ClipperOffset.Round(this.m_srcPoly[b].Y+(this.m_normals[c].Y+this.m_normals[b].Y)*d)))};f.ClipperOffset.prototype.DoRound=function(b,c){var d=Math.max(f.Cast_Int32(f.ClipperOffset.Round(this.m_StepsPerRad*Math.abs(Math.atan2(this.m_sinA,this.m_normals[c].X*this.m_normals[b].X+this.m_normals[c].Y*this.m_normals[b].Y)))),
+1),h=this.m_normals[c].X;c=this.m_normals[c].Y;for(var n,p=0;p<d;++p)this.m_destPoly.push(new f.IntPoint(f.ClipperOffset.Round(this.m_srcPoly[b].X+h*this.m_delta),f.ClipperOffset.Round(this.m_srcPoly[b].Y+c*this.m_delta))),n=h,h=h*this.m_cos-this.m_sin*c,c=n*this.m_sin+c*this.m_cos;this.m_destPoly.push(new f.IntPoint(f.ClipperOffset.Round(this.m_srcPoly[b].X+this.m_normals[b].X*this.m_delta),f.ClipperOffset.Round(this.m_srcPoly[b].Y+this.m_normals[b].Y*this.m_delta)))};f.Error=function(b){try{throw Error(b);
+}catch(c){alert(c.message)}};f.JS={};f.JS.AreaOfPolygon=function(b,c){c||(c=1);return f.Clipper.Area(b)/(c*c)};f.JS.AreaOfPolygons=function(b,c){c||(c=1);for(var d=0,h=0;h<b.length;h++)d+=f.Clipper.Area(b[h]);return d/(c*c)};f.JS.BoundsOfPath=function(b,c){return f.JS.BoundsOfPaths([b],c)};f.JS.BoundsOfPaths=function(b,c){c||(c=1);b=f.Clipper.GetBounds(b);b.left/=c;b.bottom/=c;b.right/=c;b.top/=c;return b};f.JS.Clean=function(b,c){if(!(b instanceof Array))return[];var d=b[0]instanceof Array;b=f.JS.Clone(b);
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+function(a,e,b,c){var x=a.value.real;a=a.value.imag;var v=e.value.real;e=e.value.imag;var d=b.value.real,f=b.value.imag,h=c.value.real,k=c.value.imag,m=x*d-a*f;b=x*f+a*d;c=4*m-(v*v-e*e);var n=4*b-2*v*e,p=x*v-a*e,q=x*e+a*v,r=c*d-n*f-18*(p*h-q*k);n=c*f+n*d-18*(p*k+q*h);c=27*(x*x-a*a);var t=54*a*x,u=c*h-t*k,w=c*k+t*h,y=v*v-e*e,z=2*v*e,C=y*v-z*e,A=y*e+z*v,B=u+4*C;t=w+4*A;c=27*(r*d-n*f+B*h-t*k);n=27*(r*f+n*d+B*k+t*h);B=Math.sqrt(Math.sqrt(c*c+n*n));t=Math.atan2(n,c);n=B*Math.sin(t/2);c=B*Math.cos(t/2);
+C=-2*C+9*(p*d-q*f)-u+(c*x-n*a);A=-2*A+9*(p*f+q*d)-w+(c*a+n*x);c=Math.exp(Math.log(Math.sqrt(C*C+A*A))/3);d=Math.atan2(A,C);t=c*Math.sin(d/3);n=c*Math.cos(d/3);c*=c;d*=2;m=2*y-6*m;b=2*z-6*b;z=-1.5874010519681996*(v*n-e*t);v=-1.5874010519681996*(v*t+e*n);e=1.2599210498948732*c*Math.cos(d/3);d=1.2599210498948732*c*Math.sin(d/3);c=4.762203155904599*(n*x-t*a);n=4.762203155904599*(n*a+t*x);x=c*c+n*n;t=(-m*n+b*c)/x;m=(m*c+b*n)/x;b=t;t=(-z*n+v*c)/x;z=(z*c+v*n)/x;v=t;t=(-e*n+d*c)/x;e=(e*c+d*n)/x;d=t;return g.turnIntoCSList([l.complex(m,
+b),l.complex(z,v),l.complex(e,d)])};l._helper.getRangeRand=function(a,e){return Math.random()*(e-a)+a};l.getRandReal=function(a,e){a=l._helper.getRangeRand(a,e);return l.real(a)};l.getRandComplex=function(a,e){var b=l._helper.getRangeRand(a,e);a=l._helper.getRangeRand(a,e);return l.complex(b,a)};var g={_helper:{},turnIntoCSList:function(a){return{ctype:"list",value:a}}};g.EMPTY=g.turnIntoCSList([]);g.asList=function(a){return"list"===a.ctype?a:"number"===a.ctype||"boolean"===a.ctype||"geo"===a.ctype?
+g.turnIntoCSList([a]):g.EMPTY};g.realVector=function(a){for(var e=[],b=0;b<a.length;b++)e[b]={ctype:"number",value:{real:a[b],imag:0}};return{ctype:"list",value:e}};g._helper.unitvector=function(a,e){a=g.zerovector(a);a.value[Math.floor(e.value.real-1)]=l.real(1);return a};g.idMatrix=function(a){for(var e=g.zeromatrix(a,a),b=l.real(1),c=0;c<a.value.real;c++)e.value[c].value[c]=b;return e};g._helper.flippedidMatrix=function(a){for(var e=g.zeromatrix(a,a),b=l.real(1),c=0;c<a.value.real;c++)e.value[c].value[a.value.real-
+c-1]=b;return e};g.println=function(a){for(var e=[],b=0;b<a.value.length;b++)if("number"===a.value[b].ctype)e[b]=l.niceprint(a.value[b]);else if("list"===a.value[b].ctype)g.println(a.value[b]);else return h;"number"===a.value[0].ctype&&console.log(e)};g.matrix=function(a){return g.turnIntoCSList(a.map(g.turnIntoCSList))};g.realMatrix=function(a){for(var e=a.length,b=Array(e),c=0;c<e;c++)b[c]=g.realVector(a[c]);return g.turnIntoCSList(b)};g.ex=g.realVector([1,0,0]);g.ey=g.realVector([0,1,0]);g.ez=
+g.realVector([0,0,1]);g.linfty=g.realVector([0,0,1]);g.ii=g.turnIntoCSList([l.complex(1,0),l.complex(0,1),l.complex(0,0)]);g.jj=g.turnIntoCSList([l.complex(1,0),l.complex(0,-1),l.complex(0,0)]);g.fundDual=g.realMatrix([[1,0,0],[0,1,0],[0,0,0]]);g.fund=g.realMatrix([[0,0,0],[0,0,0],[0,0,1]]);g.sequence=function(a,e){var b=[],c=0;for(a=Math.round(a.value.real);a<Math.round(e.value.real)+1;a++)b[c]={ctype:"number",value:{real:a,imag:0}},c++;return{ctype:"list",value:b}};g.pairs=function(a){for(var e=
+[],b=0;b<a.value.length-1;b++)for(var c=b+1;c<a.value.length;c++)e.push({ctype:"list",value:[a.value[b],a.value[c]]});return{ctype:"list",value:e}};g.triples=function(a){for(var e=[],b=0;b<a.value.length-2;b++)for(var c=b+1;c<a.value.length-1;c++)for(var d=c+1;d<a.value.length;d++)e.push({ctype:"list",value:[a.value[b],a.value[c],a.value[d]]});return{ctype:"list",value:e}};g.cycle=function(a){for(var e=[],b=0;b<a.value.length-1;b++)e[b]={ctype:"list",value:[a.value[b],a.value[b+1]]};e.push({ctype:"list",
+value:[a.value[a.value.length-1],a.value[0]]});return{ctype:"list",value:e}};g.consecutive=function(a){for(var e=[],b=0;b<a.value.length-1;b++)e[b]={ctype:"list",value:[a.value[b],a.value[b+1]]};return{ctype:"list",value:e}};g.reverse=function(a){for(var e=Array(a.value.length),b=a.value.length-1,c=0;0<=b;b--,c++)e[c]=a.value[b];return{ctype:"list",value:e}};g.directproduct=function(a,e){for(var b=[],c=0;c<a.value.length;c++)for(var d=0;d<e.value.length;d++)b.push({ctype:"list",value:[a.value[c],
+e.value[d]]});return{ctype:"list",value:b}};g.concat=function(a,e){for(var b=[],c=0;c<a.value.length;c++)b.push(a.value[c]);for(a=0;a<e.value.length;a++)b.push(e.value[a]);return{ctype:"list",value:b}};g.prepend=function(a,e){var b=[];b[0]=a;for(a=0;a<e.value.length;a++)b[a+1]=e.value[a];return{ctype:"list",value:b}};g.append=function(a,e){for(var b=[],c=0;c<a.value.length;c++)b[c]=a.value[c];b.push(e);return{ctype:"list",value:b}};g.contains=function(a,e){for(var b=0;b<a.value.length;b++)if(E.equals(a.value[b],
+e).value)return{ctype:"boolean",value:!0};return{ctype:"boolean",value:!1}};g.common=function(a,e){for(var b=[],c=0,d=0;d<a.value.length;d++){for(var g=!1,f=a.value[d],h=0;h<e.value.length;h++)g=g||E.equals(f,e.value[h]).value;g&&(b[c]=a.value[d],c++)}return{ctype:"list",value:b}};g.remove=function(a,e){for(var b=[],c=0,d=0;d<a.value.length;d++){for(var g=!1,f=a.value[d],h=0;h<e.value.length;h++)g=g||E.equals(f,e.value[h]).value;g||(b[c]=a.value[d],c++)}return{ctype:"list",value:b}};g.sort1=function(a){a=
+a.value.slice();a.sort(u.compare);return g.turnIntoCSList(a)};g._helper.isEqual=function(a,e){return g.equals(a,e).value};g._helper.isLessThan=function(a,e){for(var b=a.value.length,c=e.value.length,d=0;!(d>=b||d>=c)&&u.isEqual(a.value[d],e.value[d]);)d++;return d===b&&d<c?!0:d===c&&d<b||d===b&&d===c?!1:u.isLessThan(a.value[d],e.value[d])};g._helper.compare=function(a,e){return g._helper.isLessThan(a,e)?-1:g._helper.isEqual(a,e)?0:1};g.equals=function(a,e){if(a.value.length!==e.value.length)return{ctype:"boolean",
+value:!1};for(var b=!0,c=0;c<a.value.length;c++){var d=a.value[c],f=e.value[c];b="list"===d.ctype&&"list"===f.ctype?b&&g.equals(d,f).value:b&&oc([d,f],[]).value}return{ctype:"boolean",value:b}};g.almostequals=function(a,e){if(a.value.length!==e.value.length)return{ctype:"boolean",value:!1};for(var b=!0,c=0;c<a.value.length;c++){var d=a.value[c],f=e.value[c];b="list"===d.ctype&&"list"===f.ctype?b&&g.almostequals(d,f).value:b&&pc([d,f],[]).value}return{ctype:"boolean",value:b}};g._helper.isAlmostReal=
+function(a){for(var e=!0,b=0;b<a.value.length;b++){var c=a.value[b];e="list"===c.ctype?e&&g._helper.isAlmostReal(c):e&&l._helper.isAlmostReal(c)}return e};g._helper.isAlmostZero=function(a){for(var e=0;e<a.value.length;e++){var b=a.value[e];if("list"===b.ctype){if(!g._helper.isAlmostZero(b))return!1}else if(!l._helper.isAlmostZero(b))return!1}return!0};g._helper.isNaN=function(a){for(var e=!1,b=0;b<a.value.length;b++){var c=a.value[b];e="list"===c.ctype?e||g._helper.isNaN(c):e||l._helper.isNaN(c)}return e};
+g.set=function(a){var e=[],b=0;a=a.value.slice();a.sort(u.compare);for(var c=0;c<a.length;c++)0!==c&&oc([e[e.length-1],a[c]],[]).value||(e[b]=a[c],b++);return{ctype:"list",value:e}};g.maxval=function(a){for(var e=l.zero,b=0;b<a.value.length;b++){var c=a.value[b];"number"===c.ctype&&(e=l.argmax(e,c));"list"===c.ctype&&(e=l.argmax(e,g.maxval(c)))}return e};g.maxIndex=function(a,e,b){var c=0;void 0!==b&&(c=b);b=c;for(var x=e(a.value[c]).value.real;c<a.value.length;++c){var d=e(a.value[c]).value.real;
+d>x&&(b=c,x=d)}return b};g.normalizeMax=function(a){var e=l.inv(g.maxval(a));return l._helper.isFinite(e)?g.scalmult(e,a):a};g.normalizeZ=function(a){var e=l.inv(a.value[2]);return g.scalmult(e,a)};g.dehom=function(a){a=a.value.slice();var e=a.length-1,b=l.inv(a[e]);a.length=e;for(var c=0;c<e;++c)a[c]=l.mult(b,a[c]);return g.turnIntoCSList(a)};g.normalizeAbs=function(a){var e=l.inv(g.abs(a));return g.scalmult(e,a)};g.max=function(a,e){if(a.value.length!==e.value.length)return h;for(var b=[],c=0;c<
+a.value.length;c++)b[c]=u.max(a.value[c],e.value[c]);return{ctype:"list",value:b}};g.min=function(a,e){if(a.value.length!==e.value.length)return h;for(var b=[],c=0;c<a.value.length;c++)b[c]=u.min(a.value[c],e.value[c]);return{ctype:"list",value:b}};g.scaldiv=function(a,e){if("number"!==a.ctype)return h;for(var b=[],c=0;c<e.value.length;c++){var d=e.value[c];b[c]="number"===d.ctype?u.div(d,a):"list"===d.ctype?g.scaldiv(a,d):h}return{ctype:"list",value:b}};g.scalmult=function(a,e){if("number"!==a.ctype)return h;
+for(var b=[],c=0;c<e.value.length;c++){var d=e.value[c];b[c]="number"===d.ctype?u.mult(d,a):"list"===d.ctype?g.scalmult(a,d):h}return{ctype:"list",value:b}};g.add=function(a,e){if(a.value.length!==e.value.length)return h;for(var b=[],c=0;c<a.value.length;c++){var d=a.value[c],f=e.value[c];b[c]="number"===d.ctype&&"number"===f.ctype?u.add(d,f):"list"===d.ctype&&"list"===f.ctype?g.add(d,f):h}return{ctype:"list",value:b}};g.sub=function(a,e){if(a.value.length!==e.value.length)return h;for(var b=[],c=
+0;c<a.value.length;c++){var d=a.value[c],f=e.value[c];b[c]="number"===d.ctype&&"number"===f.ctype?l.sub(d,f):"list"===d.ctype&&"list"===f.ctype?g.sub(d,f):h}return{ctype:"list",value:b}};g.abs2=function(a){for(var e=0,b=0;b<a.value.length;b++){var c=a.value[b];if("number"===c.ctype)e+=l.abs2(c).value.real;else if("list"===c.ctype)e+=g.abs2(c).value.real;else return h}return{ctype:"number",value:{real:e,imag:0}}};g.abs=function(a){return l.sqrt(g.abs2(a))};g.normalizeMaxXX=function(a){for(var e=-1E4,
+b=l.real(1),c=0;c<a.value.length;c++){var d=l.abs(a.value[c]);d.value.real>e&&(b=a.value[c],e=d.value.real)}return g.scaldiv(b,a)};g.recursive=function(a,e){for(var b=[],c=0;c<a.value.length;c++){var d=D(a.value[c]);b[c]="number"===d.ctype?l[e](d):"list"===d.ctype?g[e](d):h}return{ctype:"list",value:b}};g.re=function(a){return g.recursive(a,"re")};g.neg=function(a){return g.recursive(a,"neg")};g.im=function(a){return g.recursive(a,"im")};g.conjugate=function(a){return g.recursive(a,"conjugate")};
+g.transjugate=function(a){return g.transpose(g.conjugate(a))};g.round=function(a){return g.recursive(a,"round")};g.ceil=function(a){return g.recursive(a,"ceil")};g.floor=function(a){return g.recursive(a,"floor")};g._helper.colNumb=function(a){if("list"!==a.ctype)return-1;for(var e=-1,b=0;b<a.value.length;b++){if("list"!==a.value[b].ctype)return-1;if(0===b)e=a.value[b].value.length;else if(e!==a.value[b].value.length)return-1}return e};g._helper.isNumberVecN=function(a,e){if("list"!==a.ctype||a.value.length!==
+e)return!1;for(e=0;e<a.value.length;e++)if("number"!==a.value[e].ctype)return!1;return!0};g.isNumberVector=function(a){if("list"!==a.ctype)return{ctype:"boolean",value:!1};for(var e=0;e<a.value.length;e++)if("number"!==a.value[e].ctype)return{ctype:"boolean",value:!1};return{ctype:"boolean",value:!0}};g.isNumberVectorN=function(a,e){if("list"!==a.ctype)return{ctype:"boolean",value:!1};if(a.value)for(e=0;e<a.value.length;e++)if("number"!==a.value[e].ctype)return{ctype:"boolean",value:!1};return{ctype:"boolean",
+value:!0}};g.isNumberMatrix=function(a){if(-1===g._helper.colNumb(a))return{ctype:"boolean",value:!1};for(var e=0;e<a.value.length;e++)if(!g.isNumberVector(a.value[e]).value)return{ctype:"boolean",value:!1};return{ctype:"boolean",value:!0}};g._helper.isNumberMatrixMN=function(a,e,b){return g.isNumberMatrix(a).value&&a.value.length===e&&a.value[0].value.length===b};g.scalproduct=function(a,e){if(a.value.length!==e.value.length)return h;for(var b={ctype:"number",value:{real:0,imag:0}},c=0;c<e.value.length;c++){var d=
+a.value[c],g=e.value[c];if("number"===d.ctype&&"number"===g.ctype)b=l.add(l.mult(d,g),b);else return h}return b};g.sesquilinearproduct=function(a,e){if(a.value.length!==e.value.length)return h;for(var b=0,c=0,d=0;d<e.value.length;d++){var g=a.value[d].value,f=e.value[d].value;b+=g.real*f.real+g.imag*f.imag;c+=g.real*f.imag-g.imag*f.real}return l.complex(b,c)};g.normSquared=function(a){for(var e=0,b=0;b<a.value.length;b++){var c=a.value[b].value;e+=c.real*c.real+c.imag*c.imag}return l.real(e)};g.productMV=
+function(a,e){if(a.value[0].value.length!==e.value.length)return h;for(var b=[],c=0;c<a.value.length;c++){for(var d={ctype:"number",value:{real:0,imag:0}},f=a.value[c],k=0;k<e.value.length;k++){var m=f.value[k],n=e.value[k];if("number"===m.ctype&&"number"===n.ctype)d=l.add(l.mult(m,n),d);else return h}b[c]=d}return g.turnIntoCSList(b)};g.productVM=function(a,e){if(a.value.length!==e.value.length)return h;for(var b=[],c=0;c<e.value[0].value.length;c++){for(var d={ctype:"number",value:{real:0,imag:0}},
+f=0;f<a.value.length;f++){var k=a.value[f],m=e.value[f].value[c];if("number"===k.ctype&&"number"===m.ctype)d=l.add(l.mult(k,m),d);else return h}b[c]=d}return g.turnIntoCSList(b)};g.productMM=function(a,e){if(a.value[0].value.length!==e.value.length)return h;for(var b=[],c=0;c<a.value.length;c++){var d=g.productVM(a.value[c],e);b[c]=d}return g.turnIntoCSList(b)};g.mult=function(a,e){return a.value.length===e.value.length&&g.isNumberVector(a).value&&g.isNumberVector(e).value?g.scalproduct(a,e):g.isNumberMatrix(a).value&&
+e.value.length===a.value[0].value.length&&g.isNumberVector(e).value?g.productMV(a,e):g.isNumberMatrix(e).value&&a.value.length===e.value.length&&g.isNumberVector(a).value?g.productVM(a,e):g.isNumberMatrix(a).value&&g.isNumberMatrix(e).value&&e.value.length===a.value[0].value.length?g.productMM(a,e):h};g.projectiveDistMinScal=function(a,e){var b=g.abs(a),c=g.abs(e);if(0===b.value.real||0===c.value.real)return 0;var d=g.conjugate(e);d=g.scalproduct(a,d);d=l._helper.isAlmostZero(d)?l.real(1):l.div(d,
+l.abs(d));a=g.scaldiv(b,a);e=g.scaldiv(c,e);e=g.scalmult(d,e);c=g.abs(g.add(a,e));e=g.abs(g.sub(a,e));return Math.min(c.value.real,e.value.real)};g.conicDist=function(a,e){a=Ga(a);e=Ga(e);return g.projectiveDistMinScal(a,e)};g.crossOperator=function(a){var e=a.value[0],b=a.value[1];a=a.value[2];return g.turnIntoCSList([g.turnIntoCSList([l.zero,l.neg(a),b]),g.turnIntoCSList([a,l.zero,l.neg(e)]),g.turnIntoCSList([l.neg(b),e,l.zero])])};g.cross=function(a,e){var b=l.sub(l.mult(a.value[1],e.value[2]),
+l.mult(a.value[2],e.value[1])),c=l.sub(l.mult(a.value[2],e.value[0]),l.mult(a.value[0],e.value[2]));a=l.sub(l.mult(a.value[0],e.value[1]),l.mult(a.value[1],e.value[0]));return g.turnIntoCSList([b,c,a])};g.crossratio3harm=function(a,e,b,c,d){var x=g.det3(a,b,d),v=g.det3(e,c,d);a=g.det3(a,c,d);e=g.det3(e,b,d);x=l.mult(x,v);v=l.mult(a,e);return g.turnIntoCSList([x,v])};g.crossratio3=function(a,e,b,c,d){a=g.crossratio3harm(a,e,b,c,d);return l.div(a.value[0],a.value[1])};g.veronese=function(a){var e=l.mult(a.value[0],
+a.value[0]),b=l.mult(a.value[1],a.value[1]),c=l.mult(a.value[2],a.value[2]),d=l.mult(a.value[0],a.value[1]),f=l.mult(a.value[0],a.value[2]);a=l.mult(a.value[1],a.value[2]);return g.turnIntoSCList([e,b,c,d,f,a])};g.matrixFromVeronese=function(a){var e=a.value[0],b=a.value[1],c=a.value[2],d=l.realmult(.5,a.value[3]),f=l.realmult(.5,a.value[4]);a=l.realmult(.5,a.value[5]);return g.turnIntoCSList([g.turnIntoCSList([e,d,f]),g.turnIntoCSList([d,b,a]),g.turnIntoCSList([f,a,c])])};g.det2=function(a,e){var b=
+l.mult(a.value[0],e.value[1]);return b=l.sub(b,l.mult(a.value[1],e.value[0]))};g.det3=function(a,e,b){return l.complex(a.value[0].value.real*e.value[1].value.real*b.value[2].value.real-a.value[0].value.imag*e.value[1].value.imag*b.value[2].value.real-a.value[0].value.imag*e.value[1].value.real*b.value[2].value.imag-a.value[0].value.real*e.value[1].value.imag*b.value[2].value.imag+a.value[2].value.real*e.value[0].value.real*b.value[1].value.real-a.value[2].value.imag*e.value[0].value.imag*b.value[1].value.real-
+a.value[2].value.imag*e.value[0].value.real*b.value[1].value.imag-a.value[2].value.real*e.value[0].value.imag*b.value[1].value.imag+a.value[1].value.real*e.value[2].value.real*b.value[0].value.real-a.value[1].value.imag*e.value[2].value.imag*b.value[0].value.real-a.value[1].value.imag*e.value[2].value.real*b.value[0].value.imag-a.value[1].value.real*e.value[2].value.imag*b.value[0].value.imag-a.value[0].value.real*e.value[2].value.real*b.value[1].value.real+a.value[0].value.imag*e.value[2].value.imag*
+b.value[1].value.real+a.value[0].value.imag*e.value[2].value.real*b.value[1].value.imag+a.value[0].value.real*e.value[2].value.imag*b.value[1].value.imag-a.value[2].value.real*e.value[1].value.real*b.value[0].value.real+a.value[2].value.imag*e.value[1].value.imag*b.value[0].value.real+a.value[2].value.imag*e.value[1].value.real*b.value[0].value.imag+a.value[2].value.real*e.value[1].value.imag*b.value[0].value.imag-a.value[1].value.real*e.value[0].value.real*b.value[2].value.real+a.value[1].value.imag*
+e.value[0].value.imag*b.value[2].value.real+a.value[1].value.imag*e.value[0].value.real*b.value[2].value.imag+a.value[1].value.real*e.value[0].value.imag*b.value[2].value.imag,-a.value[0].value.imag*e.value[1].value.imag*b.value[2].value.imag+a.value[0].value.imag*e.value[1].value.real*b.value[2].value.real+a.value[0].value.real*e.value[1].value.real*b.value[2].value.imag+a.value[0].value.real*e.value[1].value.imag*b.value[2].value.real-a.value[2].value.imag*e.value[0].value.imag*b.value[1].value.imag+
+a.value[2].value.imag*e.value[0].value.real*b.value[1].value.real+a.value[2].value.real*e.value[0].value.real*b.value[1].value.imag+a.value[2].value.real*e.value[0].value.imag*b.value[1].value.real-a.value[1].value.imag*e.value[2].value.imag*b.value[0].value.imag+a.value[1].value.imag*e.value[2].value.real*b.value[0].value.real+a.value[1].value.real*e.value[2].value.real*b.value[0].value.imag+a.value[1].value.real*e.value[2].value.imag*b.value[0].value.real+a.value[0].value.imag*e.value[2].value.imag*
+b.value[1].value.imag-a.value[0].value.imag*e.value[2].value.real*b.value[1].value.real-a.value[0].value.real*e.value[2].value.real*b.value[1].value.imag-a.value[0].value.real*e.value[2].value.imag*b.value[1].value.real+a.value[2].value.imag*e.value[1].value.imag*b.value[0].value.imag-a.value[2].value.imag*e.value[1].value.real*b.value[0].value.real-a.value[2].value.real*e.value[1].value.real*b.value[0].value.imag-a.value[2].value.real*e.value[1].value.imag*b.value[0].value.real+a.value[1].value.imag*
+e.value[0].value.imag*b.value[2].value.imag-a.value[1].value.imag*e.value[0].value.real*b.value[2].value.real-a.value[1].value.real*e.value[0].value.real*b.value[2].value.imag-a.value[1].value.real*e.value[0].value.imag*b.value[2].value.real)};g.det4m=function(a){var e=a.value,b=e[0].value,c=b[0].value,d=+c.real,g=+c.imag;c=b[1].value;var f=+c.real,h=+c.imag;c=b[2].value;var k=+c.real,m=+c.imag;c=b[3].value;var n=+c.real,p=+c.imag;b=e[1].value;c=b[0].value;var q=+c.real,r=+c.imag;c=b[1].value;var t=
++c.real,u=+c.imag;c=b[2].value;var w=+c.real,y=+c.imag;c=b[3].value;b=+c.real;c=+c.imag;a=d*t-g*u-f*q+h*r;var z=d*u+g*t-f*r-h*q,C=d*w-g*y-k*q+m*r,A=d*y+g*w-k*r-m*q,B=d*b-g*c-n*q+p*r,D=d*c+g*b-n*r-p*q,E=f*w-h*y-k*t+m*u,F=f*y+h*w-k*u-m*t,G=f*b-h*c-n*t+p*u,H=f*c+h*b-n*u-p*t,I=k*b-m*c-n*w+p*y,J=k*c+m*b-n*y-p*w;b=e[2].value;c=b[0].value;d=+c.real;g=+c.imag;c=b[1].value;f=+c.real;h=+c.imag;c=b[2].value;k=+c.real;m=+c.imag;c=b[3].value;n=+c.real;p=+c.imag;b=e[3].value;c=b[0].value;q=+c.real;r=+c.imag;c=
+b[1].value;t=+c.real;u=+c.imag;c=b[2].value;w=+c.real;y=+c.imag;c=b[3].value;b=+c.real;c=+c.imag;e=d*t-g*u-f*q+h*r;var L=d*u+g*t-f*r-h*q,K=d*w-g*y-k*q+m*r,M=d*y+g*w-k*r-m*q,P=d*b-g*c-n*q+p*r;d=d*c+g*b-n*r-p*q;g=f*w-h*y-k*t+m*u;q=f*y+h*w-k*u-m*t;r=f*b-h*c-n*t+p*u;f=f*c+h*b-n*u-p*t;h=k*b-m*c-n*w+p*y;k=k*c+m*b-n*y-p*w;return l.complex(a*h-z*k-C*r+A*f+B*g-D*q+E*P-F*d-G*K+H*M+I*e-J*L,a*k+z*h-C*f-A*r+B*q+D*g+E*d+F*P-G*M-H*K+I*L+J*e)};g.eucangle=function(a,e){var b=g.cross(a,g.linfty);a=g.cross(e,g.linfty);
+e=g.det3(g.ez,b,g.ii);b=g.det3(g.ez,b,g.jj);var c=g.det3(g.ez,a,g.ii);a=g.det3(g.ez,a,g.jj);e=l.div(l.mult(e,a),l.mult(c,b));e=l.log(e);return e=l.mult(e,l.complex(0,.5))};g.zerovector=function(a){a=Math.floor(a.value.real);for(var e=Array(a),b=0;b<a;b++)e[b]=0;return g.realVector(e)};g.zeromatrix=function(a,e){a=Math.floor(a.value.real);for(var b=Array(a),c=0;c<a;c++)b[c]=g.zerovector(e);return g.turnIntoCSList(b)};g.vandermonde=function(a){for(var e=a.value.length,b=g.zeromatrix(e,e),c=0;c<e;c++)for(var d=
+0;d<e;d++)b.value[c].value[d]=l.pow(a.value[c],l.real(d-1));return b};g.transpose=function(a){for(var e=[],b=a.value[0].value.length,c=a.value.length,d=0;d<b;d++){for(var f=[],h=0;h<c;h++)f[h]=a.value[h].value[d];e[d]=g.turnIntoCSList(f)}return g.turnIntoCSList(e)};g.column=function(a,e){var b=[],c=a.value.length;e=Math.floor(e.value.real-1);for(var d=0;d<c;d++)b[d]=a.value[d].value[e];return g.turnIntoCSList(b)};g.row=function(a,e){var b=[],c=a.value[0].value.length;e=Math.floor(e.value.real-1);
+for(var d=0;d<c;d++)b[d]=a.value[e].value[d];return g.turnIntoCSList(b)};g.adjoint2=function(a){var e=a.value[0].value[0],b=a.value[1].value[0],c=Array(2);c[0]=g.turnIntoCSList([a.value[1].value[1],l.neg(a.value[0].value[1])]);c[1]=g.turnIntoCSList([l.neg(b),e]);return c=g.turnIntoCSList(c)};g.adjoint3=function(a){var e=a.value[0].value;var b=e[0].value;var c=b.real;var d=b.imag;b=e[1].value;var g=b.real;var f=b.imag;b=e[2].value;var h=b.real;var k=b.imag;e=a.value[1].value;b=e[0].value;var l=b.real;
+var m=b.imag;b=e[1].value;var n=b.real;var p=b.imag;b=e[2].value;var q=b.real;var r=b.imag;e=a.value[2].value;b=e[0].value;a=b.real;var t=b.imag;b=e[1].value;var u=b.real;var w=b.imag;b=e[2].value;e=b.real;b=b.imag;return{ctype:"list",value:[{ctype:"list",value:[{ctype:"number",value:{real:n*e-q*u-p*b+r*w,imag:n*b-q*w-u*r+e*p}},{ctype:"number",value:{real:-g*e+h*u+f*b-k*w,imag:-g*b+h*w+u*k-e*f}},{ctype:"number",value:{real:g*q-h*n-f*r+k*p,imag:g*r-h*p-n*k+q*f}}]},{ctype:"list",value:[{ctype:"number",
+value:{real:-l*e+q*a+m*b-r*t,imag:-l*b+q*t+a*r-e*m}},{ctype:"number",value:{real:c*e-h*a-d*b+k*t,imag:c*b-h*t-a*k+e*d}},{ctype:"number",value:{real:-c*q+h*l+d*r-k*m,imag:-c*r+h*m+l*k-q*d}}]},{ctype:"list",value:[{ctype:"number",value:{real:l*u-n*a-m*w+p*t,imag:l*w-n*t-a*p+u*m}},{ctype:"number",value:{real:-c*u+g*a+d*w-f*t,imag:-c*w+g*t+a*f-u*d}},{ctype:"number",value:{real:c*n-g*l-d*p+f*m,imag:c*p-g*m-l*f+n*d}}]}]}};g.inverse=function(a){var e=a.value.length;if(e!==a.value[0].value.length)return console.log("Inverse works only for square matrices"),
+h;if(2===e)return g.scaldiv(g.det(a),g.adjoint2(a));if(3===e)return g.scaldiv(g.det(a),g.adjoint3(a));e=g.LUdecomp(a);a=a.value.length;var b=l.real(0),c=l.real(1),d=g.zerovector(l.real(a));d.value[0]=c;for(var f=Array(a),k=0;k<a;k++)f[k]=g._helper.LUsolve(e,d),d.value[k]=b,d.value[k+1]=c;f=g.turnIntoCSList(f);return f=g.transpose(f)};g.linearsolve=function(a,e){return 2===a.value.length?g.linearsolveCramer2(a,e):3===a.value.length?g.linearsolveCramer3(a,e):g.LUsolve(a,e)};g.getDiag=function(a){if(a.value.length!==
+a.value[0].value.length)return h;for(var e=Array(a.value.length),b=0;b<a.value.length;b++)e[b]=a.value[b].value[b];return g.turnIntoCSList(e)};g.getSubDiag=function(a){if(a.value.length!==a.value[0].value.length)return h;for(var e=Array(a.value.length-1),b=0;b<a.value.length-1;b++)e[b]=a.value[b+1].value[b];return g.turnIntoCSList(e)};g.eig2=function(a){var e=l.add(a.value[0].value[0],a.value[1].value[1]);a=g.det2(a.value[0],a.value[1]);var b=l.mult(e,e),c=e=l.mult(e,l.real(.5));a=l.sqrt(l.sub(l.div(b,
+l.real(4)),a));e=l.add(e,a);c=l.sub(c,a);return g.turnIntoCSList([e,c])};g.eig=function(a,e){var b=e||!0,c=a,d=l.real(c.value.length);e=d.value.real;l.real(0);c=g._helper.QRIteration(c)[0];c=g.getDiag(c);c=g.sort1(c);d=g.idMatrix(d,d);var f=Array(e);f=g.turnIntoCSList(f);if(b){var h,k=0,m=!1;for(b=0;b<e;b++){if(m)var n=p.value[k];else{var p=c.value[b];p=g.sub(a,g.scalmult(p,d));p=g.nullSpace(p);n=p.value[0];void 0!==n&&(h=n)}void 0===n&&(n=h);1E-8>g.abs(n).value.real&&0===k&&(n=g._helper.inverseIteration(a,
+c.value[b]));f.value[b]=g._helper.isAlmostZeroVec(n)?n:g.scaldiv(g.abs(n),n);b<e-1&&((m=1E-6>l.abs(l.sub(c.value[b],c.value[b+1])).value.real)?k++:k=0)}f=g.transpose(f)}return g.turnIntoCSList([c,f])};g._helper.isNormalMatrix=function(a){return 1E-10>g.abs(g.sub(a,g.transjugate(a))).value.real};g._helper.QRIteration=function(a,e){var b=l.real(a.value.length),c=b.value.real,d=b.value.real;l.real(0);g.idMatrix(b,b);var f=g.zeromatrix(b,b);b=g.idMatrix(b,b);var h=e?e:2500,k=0,m=Array(d);for(e=0;e<h;e++){var n=
+g._helper.getBlock(a,[d-2,d-1],[d-2,d-1]);var p=g.eig2(n);n=p.value[0];p=p.value[1];g.abs(n);g.abs(p);var q=a.value[d-1].value[d-1];var r=l.abs(l.sub(q,n)).value.real;q=l.abs(l.sub(q,p)).value.real;p=r<q?n:p;n=g.idMatrix(l.real(d),l.real(d));p=g.scalmult(p,n);n=g.QRdecomp(g.sub(a,p));a=u.mult(n.R,n.Q);a=g.add(a,p);n.Q=g._helper.buildBlockMatrix(n.Q,g.idMatrix(l.real(k),l.real(k)));b=u.mult(b,n.Q);if(1E-48>l.abs2(a.value[a.value.length-1].value[a.value[0].value.length-2]).value.real&&1<d){m[c-k-1]=
+a.value[d-1].value[d-1];for(e=0;e<d;e++)f.value[d-1].value[e]=a.value[d-1].value[e],f.value[e].value[d-1]=a.value[e].value[d-1];a=g._helper.getBlock(a,[0,d-2],[0,d-2]);k++;d--}if(1===d){f.value[0].value[0]=a.value[0].value[0];break}if(g._helper.isUpperTriangular(a)){for(e=0;e<d;e++)f.value[e].value[e]=a.value[e].value[e];break}}return[f,b]};g.rank=function(a,e){return g.RRQRdecomp(a,e).rank};g._helper.isAlmostZeroVec=function(a){for(var e=a.value.length,b=0;b<e;b++)if(!l._helper.isAlmostZero(a.value[b]))return!1;
+return!0};g._helper.isLowerTriangular=function(a){for(var e=a.value.length,b=a.value[0].value.length,c=0;c<e;c++)for(var d=c+1;d<b;d++)if(!l._helper.isAlmostZero(a.value[c].value[d]))return!1;return!0};g._helper.isUpperTriangular=function(a){return g._helper.isLowerTriangular(g.transpose(a))};g._helper.isAlmostId=function(a){var e=a.value.length,b=l.real(e);if(e!==a.value[0].value.length)return!1;a=g.sub(a,g.idMatrix(b),b);for(b=0;b<e;b++)for(var c=0;c<e;c++)if(1E-16<l.abs(a.value[b].value[c]).value.real)return!1;
+return!0};g.nullSpace=function(a,e){var b=a.value.length;e=g.RRQRdecomp(g.transjugate(a),e);a=g.transpose(e.Q);e=b-e.rank.value.real;var c=Array(e);a.value.reverse();for(var d,f=0;f<e;f++)d=a.value[f],c[f]=g.scaldiv(g.abs(d),d);c=g.turnIntoCSList(c);return 0<c.value.length?c:g.turnIntoCSList([g.zerovector(l.real(b))])};g._helper.isAlmostDiagonal=function(a){var e=a.value.length;l.real(e);l.real(0);if(e!==a.value[0].value.length)return!1;for(var b=0;b<e;b++)for(var c=0;c<e;c++)if(b!==c&&1E-16<l.abs(a.value[b].value[c]).value.real)return!1;
+return!0};g._helper.inverseIteration=function(a,e){console.log("warning: code untested");for(var b=a.value.length,c=Array(b),d=0;d<b;d++)c[d]=2*Math.random()-.5;c=g.realVector(c);b=g.idMatrix(l.real(b),l.real(b));e=l.add(e,l.real(.1*Math.random()-.5));for(d=0;100>d;d++)c=g.scaldiv(g.abs(c),c),c=g.LUsolve(g.sub(a,g.scalmult(e,b)),JSON.parse(JSON.stringify(c)));return g.scaldiv(g.abs(c),c)};g._helper.toHessenberg=function(a){var e=JSON.parse(JSON.stringify(a)),b=e.value.length,c=l.real(b-1),d=l.real(b);
+l.real(1);if(g._helper.isUpperTriangular(e))return[g.idMatrix(c,c),a];a=g.idMatrix(d,d);for(d=1;d<b-1;d++){var f=g.column(e,l.real(d));f.value=f.value.splice(d);var h=g.abs2(f).value.real;1E-16<h&&(f=g._helper.getHouseHolder(f),a=u.mult(a,f),e=u.mult(u.mult(f,e),f));c.value.real--}return[a,e]};g._helper.swapEl=function(a,e,b){if("[object Array]"===Object.prototype.toString.call(a)){var c=a[e];a[e]=a[b];a[b]=c}else"list"===a.ctype&&(c=a.value[e],a.value[e]=a.value[b],a.value[b]=c)};g.RRQRdecomp=function(a,
+e){var b=Math.sqrt(l.eps);void 0!==e&&(b=.1*e.value.real);e=b*b;var c;b=a.value.length;var d=l.real(b),f=l.real(1),h=g._helper.unitvector(l.real(a.value.length),f),k=g.idMatrix(d,d),m=JSON.parse(JSON.stringify(a)),n=g.transpose(a);a=Array(b);for(c=0;c<b;c++)a[c]=g.abs2(n.value[c]);a=g.turnIntoCSList(a);n=Array(b);for(c=0;c<b;c++)n[c]=c;c=g.maxIndex(a,l.abs);for(var p=a.value[c],q=0,r=0;1E-16<l.abs2(p).value.real;r++){q++;g._helper.swapColumn(m,r,c);g._helper.swapEl(a,r,c);g._helper.swapEl(n,r,c);
+c=g._helper.getBlock(m,[r],[r]);c=g.column(c,f);p=g.abs2(c).value.real;1E-8<p&&(c=g._helper.getHouseHolder(c),c=g._helper.buildBlockMatrix(g.idMatrix(l.real(r),l.real(r)),c),k=u.mult(k,g.transjugate(c)),m=u.mult(c,m));for(c=r+1;c<b;c++)a.value[c]=l.sub(a.value[c],l.mult(m.value[r].value[c],l.conjugate(m.value[r].value[c])));c=g.maxIndex(a,l.abs2,r+1);p=a.value[c];if(r+2===b){l.abs(p).value.real>e&&q++;break}d=l.sub(d,f);h.value=h.value.splice(0,h.value.length-1)}return{Q:k,R:m,P:g.turnIntoCSList(n),
+rank:l.real(q)}};g._helper.getHouseHolder=function(a){var e=l.real(a.value.length);if(1E-16>g.abs2(a))return g.idMatrix(e,e);var b=l.real(1),c=g._helper.unitvector(l.real(a.value.length),b);var d=g._helper.QRgetAlpha(a,0);d=g.sub(a,g.scalmult(d,c));d=g.scaldiv(g.abs(d),d);a=l.div(g.sesquilinearproduct(a,d),g.sesquilinearproduct(d,a));e=g.idMatrix(e,e);return e=g.sub(e,g.scalmult(l.add(b,a),g._helper.transposeMult(d,g.conjugate(d))))};g._helper.reOrderbyPivots=function(a,e){var b=a.value.length.length;
+a=g.transpose(a);b=Array(b);for(var c=0;c<e.length;c++)b[e[c]]=a.value[c];b=g.turnIntoCSList(b);return g.transpose(b)};g.QRdecomp=function(a){var e=a.value.length,b=l.real(e);if(g._helper.isUpperTriangular(a))return{Q:g.idMatrix(b,b),R:a};var c=l.real(1),d=g._helper.unitvector(l.real(a.value.length),c),f=g.idMatrix(b,b);a=JSON.parse(JSON.stringify(a));for(var h=0;;h++){var k=g._helper.getBlock(a,[h],[h]);k=g.column(k,c);var m=g.abs2(k).value.real;1E-8<m&&(k=g._helper.getHouseHolder(k),k=g._helper.buildBlockMatrix(g.idMatrix(l.real(h),
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+L.newvar(d);L.setvar(d,c[0]);for(var g=w(a[2]),x=1;x<c.length;x++){L.setvar(d,c[x]);var f=w(a[2]);g=e(g,f)}L.removevar(d);return g}};E.genericListMathGen("product",u.mult,l.real(1));E.genericListMathGen("sum",u.add,l.real(0));E.genericListMathGen("max",u.max,h);E.genericListMathGen("min",u.min,h);q.max$2=function(a,e){e=D(a[0]);if("list"===e.ctype)return q.max$3([e,null,a[1]]);a=D(a[1]);return q.max$1([g.turnIntoCSList([e,a])])};q.min$2=function(a,e){e=D(a[0]);if("list"===e.ctype)return q.min$3([e,
+null,a[1]]);a=D(a[1]);return q.min$1([g.turnIntoCSList([e,a])])};q.add$2=Yb;q.sub$2=Hb;q.mult$2=hd;q.div$2=Hd;q.mod$2=function(a,e){e=D(a[0]);a=D(a[1]);return"number"===e.ctype&&"number"===a.ctype?l.mod(e,a):h};q.pow$2=Jc;q.exp$1=function(a,e){a=D(a[0]);return"number"===a.ctype?l.exp(a):h};q.sin$1=function(a,e){a=D(a[0]);return"number"===a.ctype?l.sin(a):h};q.sqrt$1=function(a,e){a=D(a[0]);return"number"===a.ctype?l.sqrt(a):h};E.laguerre=function(a,e,b){if("list"!==a.ctype)return h;var c=a.value.length-
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+b),l.mult(l.real(4),l.mult(e,a))));0<=l.re(b)&&(c=l.neg(c));return[l.div(l.sub(c,b),l.mult(l.real(2),e)),l.div(l.mult(l.real(2),a),l.sub(c,b))]};E.roots=function(a){var e=[],b=a,c=a.value.length-1;if(0>=c)return g.turnIntoCSList([]);if(l._helper.isZero(a.value[c]))return e=E.roots(g.turnIntoCSList(a.value.slice(0,c))),g.append(e,l.infinity);if(1===c)e[0]=l.neg(l.div(a.value[0],a.value[1]));else if(2===c)e=E.quadratic_roots(a);else{for(var d=0;d<c-2;d++){e[d]=E.laguerre(a,l.zero,200);e[d]=E.laguerre(b,
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+e){a=D(a[0]);return"number"===a.ctype?l.arctan(a):h};q.arctan2$2=function(a,e){e=D(a[0]);a=D(a[1]);return"number"===e.ctype&&"number"===a.ctype?l.arctan2(e,a):h};q.arctan2$1=function(a,e){a=D(a[0]);if("list"===a.ctype&&2===a.value.length){if(a=a.value,"number"===a[0].ctype&&"number"===a[1].ctype)return q.arctan2$2(a,e)}else if("number"===a.ctype)return l.arctan2(a);return h};q.log$1=function(a,e){a=D(a[0]);return"number"===a.ctype?l.log(a):h};E.recursiveGen=function(a){var e=l[a],b=g[a];q[a+"$1"]=
+function(a,c){a=D(a[0]);return"number"===a.ctype?e(a):"list"===a.ctype?b(a):h}};E.recursiveGen("im");E.recursiveGen("re");E.recursiveGen("conjugate");E.recursiveGen("round");E.recursiveGen("ceil");E.recursiveGen("floor");E.recursiveGen("abs");q.abs_infix=q.abs$1;q.random$0=function(a,e){return l.real(l._helper.rand())};q.random$1=function(a,e){a=D(a[0]);return"number"===a.ctype?l.complex(a.value.real*l._helper.rand(),a.value.imag*l._helper.rand()):h};q.seedrandom$1=function(a,e){a=D(a[0]);"number"===
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+{ctype:"boolean",value:!0}:{ctype:"boolean",value:!1}};q.iscircle$1=function(a,e){a=w(a[0]);return"geo"===a.ctype&&"C"===a.value.kind&&"Circle"===a.value.matrix.usage?{ctype:"boolean",value:!0}:{ctype:"boolean",value:!1}};q.isconic$1=function(a,e){a=w(a[0]);return"geo"===a.ctype&&"C"===a.value.kind?{ctype:"boolean",value:!0}:{ctype:"boolean",value:!1}};q.isline$1=function(a,e){a=w(a[0]);return"geo"===a.ctype&&"L"===a.value.kind?{ctype:"boolean",value:!0}:{ctype:"boolean",value:!1}};q.ispoint$1=function(a,
+e){a=w(a[0]);return"geo"===a.ctype&&"P"===a.value.kind?{ctype:"boolean",value:!0}:{ctype:"boolean",value:!1}};q.isgeometric$1=function(a,e){return"geo"===w(a[0]).ctype?{ctype:"boolean",value:!0}:{ctype:"boolean",value:!1}};q.isnumbermatrix$1=function(a,e){a=w(a[0]);return g.isNumberMatrix(a)};q.isnumbervector$1=function(a,e){a=w(a[0]);return g.isNumberVector(a)};q.issun$1=function(a,e){a=w(a[0]);return"geo"===a.ctype&&void 0!==a.value.behavior&&"Sun"===a.value.behavior.type?{ctype:"boolean",value:!0}:
+{ctype:"boolean",value:!1}};q.ismass$1=function(a,e){a=w(a[0]);return"geo"===a.ctype&&void 0!==a.value.behavior&&"Mass"===a.value.behavior.type?{ctype:"boolean",value:!0}:{ctype:"boolean",value:!1}};q.isspring$1=function(a,e){a=w(a[0]);return"geo"===a.ctype&&void 0!==a.value.behavior&&"Spring"===a.value.behavior.type?{ctype:"boolean",value:!0}:{ctype:"boolean",value:!1}};q.isbouncer$1=function(a,e){a=w(a[0]);return"geo"===a.ctype&&void 0!==a.value.behavior&&"Bouncer"===a.value.behavior.type?{ctype:"boolean",
+value:!0}:{ctype:"boolean",value:!1}};q.isundefined$1=function(a,e){return"undefined"===w(a[0]).ctype?{ctype:"boolean",value:!0}:{ctype:"boolean",value:!1}};var Nc={ArcBy3:"Arc",CenterOfConic:"Center",ConicBy1p4l:"Conic1P4L",ConicBy4p1l:"Conic4P1L",ConicBy5lines:"Conic5L",ConicBy2Foci1P:"ConicFoci",ConicFromPrincipalDirections:"ConicPrincipleDirs",Free:"FreePoint",PolarOfLine:"PolarLine",PolarOfPoint:"PolarPoint",PointOnSegment:"PointOnLine",Button:"Text",ToggleButton:"Text",TrReflectionL:"TrReflection",
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+"CircleByRadius"));return u.string(b)}return h};q.inputs$1=function(a,e){a=w(a[0]);if("geo"===a.ctype){a=a.value;e=a.type;var b=[];a.args&&(b=a.args.map(function(a){return{ctype:"geo",value:r.csnames[a]}}));if(/^Select/.test(e)||m[e].isMovable)switch(a.kind){case "P":case "L":b.push(a.homog);break;case "C":b.push(a.matrix)}return g.turnIntoCSList(b)}return h};q.moveto$2=function(a,e){e=w(a[0]);a=D(a[1]);"geo"===e.ctype&&(e=e.value,g._helper.isNumberVecN(a,2)?Ha.setField(e,"xy",a):g._helper.isNumberVecN(a,
+3)&&Ha.setField(e,"homog",a));return h};q.continuefromhere$0=function(a,e){gc();return h};q.matrixrowcolumn$1=function(a,e){a=w(a[0]);return-1!==g._helper.colNumb(a)?g.realVector([a.value.length,a.value[0].value.length]):h};q.rowmatrix$1=function(a,e){a=w(a[0]);return"list"===a.ctype?g.turnIntoCSList([a]):h};q.columnmatrix$1=function(a,e){a=w(a[0]);return"list"===a.ctype?g.turnIntoCSList(a.value.map(function(a){return g.turnIntoCSList([a])})):h};q.submatrix$3=function(a,e){e=w(a[0]);var b=w(a[1]);
+a=w(a[2]);if("list"===e.ctype&&"number"===b.ctype&&"number"===a.ctype){var c=Math.round(b.value.real);a=Math.round(a.value.real);e=e.value.slice();0<a&&a<=e.length&&e.splice(a-1,1);var d=!0;e=e.map(function(a){if("list"!==a.ctype)d=!1;else return a=a.value.slice(),0<c&&c<=a.length&&a.splice(c-1,1),g.turnIntoCSList(a)});return d?g.turnIntoCSList(e):h}return h};q.complex$1=function(a,e){var b=D(a[0]);if("list"===b.ctype&&g.isNumberVector(b)){if(2===b.value.length)return a=b.value[0],e=b.value[1],l.complex(a.value.real-
+e.value.imag,e.value.real+a.value.imag);if(3===b.value.length)return a=b.value[0],e=b.value[1],b=b.value[2],a=l.div(a,b),e=l.div(e,b),l.complex(a.value.real-e.value.imag,e.value.real+a.value.imag)}return h};q.gauss$1=function(a,e){a=D(a[0]);return"number"===a.ctype?g.realVector([a.value.real,a.value.imag]):h};q.cross$2=Da;q.crossratio$4=function(a,e){e=w(a[0]);var b=w(a[1]),c=w(a[2]);a=w(a[3]);var d=Q(e),f=Q(b),k=Q(c),m=Q(a);return d!==h&&f!==h&&k!==h&&m!==h?g.crossratio3(d,f,k,m,g.ii):"number"===
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+a),u.withUsage(a,"Line")):h};q.dist$2=function(a,e){e=D(a[0]);a=D(a[1]);a=Hb([e,a],[]);return q.abs$1([a],[])};q.dist_infix=q.dist$2;q.point$1=function(a,e){a=w(a[0]);return g._helper.isNumberVecN(a,3)||g._helper.isNumberVecN(a,2)?u.withUsage(a,"Point"):a};q.line$1=function(a,e){a=w(a[0]);return g._helper.isNumberVecN(a,3)?u.withUsage(a,"Line"):a};q.det$3=function(a,e){e=Q(a[0]);var b=Q(a[1]);a=Q(a[2]);if(e!==h&&b!==h&&a!==h)return g.det3(e,b,a)};q.det$1=function(a,e){a=D(a[0]);return"list"===a.ctype&&
+(e=g._helper.colNumb(a),-1!==e&&e===a.value.length)?g.det(a):h};q.eig$1=function(a,e){a=D(a[0]);return"list"===a.ctype&&(e=g._helper.colNumb(a),-1!==e&&e===a.value.length)?g.eig(a):h};q.eigenvalues$1=function(a,e){a=D(a[0]);return"list"===a.ctype&&(e=g._helper.colNumb(a),-1!==e&&e===a.value.length)?g.eig(a,!1).value[0]:h};q.rank$1=function(a,e){a=D(a[0]);if("list"===a.ctype){var b=g._helper.colNumb(a);if(-1!==b&&b===a.value.length)return g.rank(a,e.precision)}return h};q.kernel$1=function(a,e){a=
+D(a[0]);if("list"===a.ctype){var b=g._helper.colNumb(a);if(-1!==b&&b===a.value.length)return e=g.nullSpace(a,e.precision),g.transpose(e)}return h};q.eigenvectors$1=function(a,e){a=D(a[0]);return"list"===a.ctype&&(e=g._helper.colNumb(a),-1!==e&&e===a.value.length)?g.eig(a).value[1]:h};q.area$3=function(a,e){e=Q(a[0]);var b=Q(a[1]);a=Q(a[2]);if(e!==h&&b!==h&&a!==h){var c=e.value[2],d=b.value[2],f=a.value[2];if(!l._helper.isAlmostZero(c)&&!l._helper.isAlmostZero(d)&&!l._helper.isAlmostZero(f))return e=
+g.scaldiv(c,e),b=g.scaldiv(d,b),a=g.scaldiv(f,a),e=g.det3(e,b,a),l.realmult(.5,e)}return h};q.inverse$1=function(a,e){a=D(a[0]);return"list"===a.ctype&&(e=g._helper.colNumb(a),-1!==e&&e===a.value.length)?g.inverse(a):h};q.linearsolve$2=function(a,e){e=D(a[0]);a=D(a[1]);if("list"===e.ctype){var b=g._helper.colNumb(e);if(-1!==b&&b===e.value.length&&g._helper.isNumberVecN(a,b))return g.linearsolve(e,a)}return h};var md=[[[]],[[0]],[[0,1],[1,0]],[[0,1,2],[0,2,1],[1,0,2],[1,2,0],[2,0,1],[2,1,0]],[[0,1,
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+console.warn("Web Audio API not supported in this browser");return this.audioCtx},handleModif:function(a,b,c){if(void 0!==a){if(a=w(a),a.ctype===b){if("number"===a.ctype)return a.value.real;if("list"===a.ctype){b=a.value;a=[];for(c=0;c<b.length;c++)a[c]=b[c].value.real;return a}return a.value}}else return c},handleLineModif:function(a,b){return void 0!==a?(a=w(a),da(a)):b},getBufferNode:function(a,b){var e=this.getAudioContext();if(b*e.sampleRate>a.length){for(var c=[],d=0,g=0;d<e.sampleRate*b;d++,
+g++)g>a.length&&(g=0),c[d]=a[g];a=c}b=new Float32Array(a);a=e.createBuffer(1,b.length,e.sampleRate);a.copyToChannel(b,0);e=e.createBufferSource();e.buffer=a;return e},createMonoOscillator:function(a,b){var e=this.getAudioContext().createOscillator();if(0!==b){var c=new Float32Array(2),d=new Float32Array(2);c[1]=Math.sin(b);d[1]=Math.cos(b);b=this.getAudioContext().createPeriodicWave(c,d,{disableNormalization:!0});e.setPeriodicWave(b)}else e.type="sine";e.mono=!0;e.frequency.value=a;return e},createWaveOscillator:function(a,
+b,c){for(var e=this.getAudioContext().createOscillator(),d=new Float32Array(b.length+1),g=new Float32Array(b.length+1),f=0;f<b.length;f++)g[f+1]=b[f]*Math.cos(c[f]),d[f+1]=b[f]*Math.sin(c[f]);b=this.getAudioContext().createPeriodicWave(d,g,{disableNormalization:!0});e.setPeriodicWave(b);e.frequency.value=a;return e},cleanup:function(){for(var a in this.lines)if("sin"===this.lines[a].lineType)if(this.lines[a].oscNodes.every(function(a){return!a.oscNode.isplaying}))delete this.lines[a];else for(var b=
+0;b<this.lines[a].oscNodes.length;b++)this.lines[a].oscNodes[b]&&!this.lines[a].oscNodes[b].oscNode.isplaying&&delete this.lines[a].oscNodes[b]},registerInput:function(a){a.cnt?a.cnt++:a.cnt=1},deregisterInput:function(a){a.cnt&&a.cnt--},hasRegisteredInput:function(a){return a.cnt&&0!==a.cnt},playOscillator:function(a,b,c,d,g,f){var e=this.getAudioContext(),h=e.createGain();h.gain.value=0;a.connect(h);h.connect(b);M.registerInput(b);a.start(0);a.isplaying=!0;a.onended=function(){this.isplaying=!1;
+h.disconnect();M.deregisterInput(b);M.hasRegisteredInput(b)||(b.disconnect(),b.panNode&&b.panNode.disconnect());M.cleanup()};h.gain.linearRampToValueAtTime(c,e.currentTime+d);0<=g&&(h.gain.setValueAtTime(c,e.currentTime+d+g),h.gain.linearRampToValueAtTime(0,e.currentTime+d+g+f),this.triggerStop(a,g+d+f));return{oscNode:a,gainNode:h}},softStop:function(a,b){var e=this.getAudioContext();a.gainNode.gain.cancelScheduledValues(e.currentTime);a.gainNode.gain.setValueAtTime(a.gainNode.gain.value,e.currentTime);
+a.gainNode.gain.linearRampToValueAtTime(0,e.currentTime+b);this.triggerStop(a.oscNode,b)},extendDuration:function(a,b,c){var e=this.getAudioContext();a.gainNode.gain.cancelScheduledValues(e.currentTime);a.gainNode.gain.setValueAtTime(a.gainNode.gain.value,e.currentTime);a.gainNode.gain.setValueAtTime(a.gainNode.gain.value,e.currentTime+b);a.gainNode.gain.linearRampToValueAtTime(0,e.currentTime+b+c);this.triggerStop(a.oscNode,b+c)},triggerStop:function(a,b){a.timeoutId&&clearTimeout(a.timeoutId);a.timeoutId=
+setTimeout(function(){a.stop(0)},1E3*b+10)}},tb=function(a){this.audioCtx=a;this.lineType="sin";this.oscNodes=[]};tb.prototype.handleModif=function(a,b,c,d){if("phaseshift"===b)d=this.handlePhaseshiftModif(a.phaseshift,this.harmonics.length);else if(void 0!==a[b]&&(a=w(a[b]),a.ctype===c))if("number"===a.ctype)d=a.value.real;else if("list"===a.ctype){c=a.value;a=[];for(d=0;d<c.length;d++)a[d]=c[d].value.real;d=a}else d=a.value;return this[b]=d};tb.prototype.handlePhaseshiftModif=function(a,b){this.phaseshift=
+Array(b).fill(0);if(void 0!==a)if(a=w(a),"list"===a.ctype)for(b=a.value,a=0;a<b.length;a++)this.phaseshift[a]=b[a].value.real;else if("number"===a.ctype)for(var e=0;e<b;e++)this.phaseshift[e]=(e+1)*a.value.real;return this.phaseshift};tb.prototype.cleanparameters=function(a){this.partials.length<this.harmonics.length&&(this.partials=Array(this.harmonics.length).fill(1),a.partials&&console.warn("Ignore partials because the given length does not match with the length of harmonics"));this.phaseshift.length<
+this.harmonics.length&&(this.phaseshift=Array(this.harmonics.length).fill(0),a.phaseshift&&console.warn("Ignore phaseshift because the given length does not match with the length of harmonics"));this.precompute&=this.partials.every(function(a){return 1E-8>Math.abs(a-1)});0<this.damp&&(this.duration=Math.min(this.duration,6/this.damp))};tb.prototype.panit=function(){0===this.pan||this.masterGain.panNode||(this.masterGain.disconnect(this.audioCtx.destination),this.masterGain.panNode=this.audioCtx.createStereoPanner(),
+this.masterGain.connect(this.masterGain.panNode),this.masterGain.panNode.connect(this.audioCtx.destination));this.masterGain.panNode&&(this.masterGain.panNode.pan.value=this.pan)};tb.prototype.dampit=function(){this.masterGain.gain.cancelScheduledValues(this.audioCtx.currentTime);this.masterGain.gain.setValueAtTime(this.masterGain.gain.value,this.audioCtx.currentTime);0<this.damp?this.masterGain.gain.setTargetAtTime(0,this.audioCtx.currentTime+this.attack,1/this.damp):0>this.damp&&this.masterGain.gain.setTargetAtTime(1,
+this.audioCtx.currentTime+this.attack,-this.damp)};tb.prototype.startOscillators=function(){if(this.precompute)this.oscNodes[0]=M.playOscillator(M.createWaveOscillator(this.freq,this.harmonics,this.phaseshift),this.masterGain,1,this.attack,this.duration,this.release);else for(var a=0;a<this.harmonics.length;a++)this.oscNodes[a]=M.playOscillator(M.createMonoOscillator(this.partials[a]*(a+1)*this.freq,this.phaseshift[a]),this.masterGain,this.harmonics[a],this.attack,this.duration,this.release)};tb.prototype.stopOscillators=
+function(){for(var a in this.oscNodes)M.softStop(this.oscNodes[a],this.release),delete this.oscNodes[a]};tb.prototype.stop=function(){this.stopOscillators()};tb.prototype.updateFrequencyAndGain=function(){if(this.precompute)this.harmonicsdidnotchange()&&this.oscNodes[0]&&this.oscNodes[0].oscNode.isplaying&&!this.oscNodes[0].oscNode.mono?(this.oscNodes[0].oscNode.frequency.value=this.freq,M.extendDuration(this.oscNodes[0],this.duration,this.release)):(this.stopOscillators(),this.startOscillators());
+else{for(var a=0;a<this.harmonics.length;a++)0<this.harmonics[a]&&(this.oscNodes[a]&&this.oscNodes[a].oscNode.isplaying&&this.oscNodes[a].oscNode.mono?(this.oscNodes[a].oscNode.frequency.value=this.partials[a]*(a+1)*this.freq,this.oscNodes[a].gainNode.gain.value=this.harmonics[a],M.extendDuration(this.oscNodes[a],this.duration,this.release)):(this.oscNodes[a]&&this.oscNodes[a].oscNode.isplaying&&!this.oscNodes[a].oscNode.mono&&M.softStop(this.oscNodes[a],this.release),this.oscNodes[a]=M.playOscillator(M.createMonoOscillator(this.partials[a]*
+(a+1)*this.freq,this.phaseshift[a]),this.masterGain,this.harmonics[a],this.attack,this.duration,this.release)));for(var b in this.oscNodes)this.harmonics[b]||(M.softStop(this.oscNodes[b],this.release),delete this.oscNodes[b])}};tb.prototype.generateNewMasterGain=function(a){this.masterGain=this.audioCtx.createGain();this.masterGain.connect(this.audioCtx.destination);this.masterGain.gain.value=a};tb.prototype.harmonicsdidnotchange=function(){if(this.lastharmonics){var a=1&this.lastharmonics.length===
+this.harmonics.length;for(var b in this.harmonics)a&&(a&=this.harmonics[b]===this.lastharmonics[b])}else a=!1;return a};tb.prototype.evokeplaysin=function(a,b,c){this.cleanparameters(c);if(0===this.duration)return this.stop(),h;a||b&&0!==this.damp?(b&&!a&&this.stopOscillators(),this.generateNewMasterGain(this.amp),this.startOscillators()):(this.masterGain||this.generateNewMasterGain(this.amp),this.updateFrequencyAndGain());this.panit();this.dampit();this.lastharmonics=this.harmonics};q.stopsound$0=
+function(){if(M.audioCtx){for(var a in M.lines)M.lines[a].stop(),delete M.lines[a];M.audioCtx.close();M.audioCtx=null}};q.playsin$1=function(a,b){var e=M.getAudioContext(),c=M.handleLineModif(b.line,"0"),d=!1;M.lines[c]&&"sin"===M.lines[c].lineType||(M.lines[c]&&M.lines[c].stop(),M.lines[c]=new tb(e),d=!0);e=M.lines[c];e.freq=w(a[0]).value.real;e.handleModif(b,"amp","number",.5);e.handleModif(b,"damp","number",0);e.handleModif(b,"duration","number",M.handleModif(b.stop,"number",1));e.handleModif(b,
+"harmonics","list",[1]);e.handleModif(b,"partials","list",[1]);e.handleModif(b,"attack","number",.01);e.handleModif(b,"release","number",.01);e.handleModif(b,"pan","number",0);e.handleModif(b,"precompute","boolean",!1);e.handleModif(b,"phaseshift","phaseshift",Array(e.harmonics.length).fill(0));a=M.handleModif(b.restart,"boolean",!0);e.evokeplaysin(d,a,b);return h};q.playsin$0=function(a,b){if(void 0!==b.line&&(a=M.handleLineModif(b.line,"0"),a=M.lines[a])){a.handleModif(b,"freq","number",a.freq);
+a.handleModif(b,"amp","number",a.amp);a.handleModif(b,"damp","number",a.damp);a.handleModif(b,"duration","number",M.handleModif(b.stop,"number",a.duration));a.handleModif(b,"harmonics","list",a.harmonics);a.handleModif(b,"partials","list",a.partials);a.handleModif(b,"attack","number",a.attack);a.handleModif(b,"release","number",a.release);a.handleModif(b,"pan","number",a.pan);a.handleModif(b,"precompute","boolean",a.precompute);a.handleModif(b,"phaseshift","phaseshift",a.phaseshift);var e=M.handleModif(b.restart,
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+b.set(a);return b};Fa.prototype.get=function(a){return this._e[a]};Fa.prototype.getRow=function(a){var b=this._e;return[b[a],b[3+a],b[6+a]]};Fa.prototype.set=function(a,b){1===arguments.length&&(this._e=a);2===arguments.length&&(this._e[a]=b)};Fa.prototype.exchange=function(a,b){var e=$jscomp.makeIterator([this._e[b],this._e[a]]);this._e[a]=e.next().value;this._e[b]=e.next().value};Fa.prototype.inverse=function(){var a=this._e,b=-a[2]*a[4]*a[6]+a[1]*a[5]*a[6]+a[2]*a[3]*a[7]-a[0]*a[5]*a[7]-a[1]*a[3]*
+a[8]+a[0]*a[4]*a[8];a=[-a[4]*a[7]+a[4]*a[8],a[5]*a[6]-a[3]*a[8],-a[4]*a[6]+a[3]*a[7],a[2]*a[7]-a[1]*a[8],-a[2]*a[6]+a[0]*a[8],a[1]*a[6]-a[0]*a[7],-a[2]*a[4]+a[1]*a[5],a[2]*a[3]-a[0]*a[5],-a[1]*a[3]+a[0]*a[4]];1E-10>Math.abs(b)&&console.log("PSLQ: inverting singular matrix!");this._e=a.map(function(a){return a/b});return this};Fa.prototype.swRow=function(a,b){for(var e=0;9>e;)this.exchange(e+a,e+b),e+=3};Fa.prototype.swCol=function(a,b){for(var e=0;3>e;++e)this.exchange(3*a+e,3*b+e)};Fa.mult=function(a,
+b,c){a=[a.get(0)*b.get(0)+a.get(3)*b.get(1)+a.get(6)*b.get(2),a.get(1)*b.get(0)+a.get(4)*b.get(1)+a.get(7)*b.get(2),a.get(2)*b.get(0)+a.get(5)*b.get(1)+a.get(8)*b.get(2),a.get(0)*b.get(3)+a.get(3)*b.get(4)+a.get(6)*b.get(5),a.get(1)*b.get(3)+a.get(4)*b.get(4)+a.get(7)*b.get(5),a.get(2)*b.get(3)+a.get(5)*b.get(4)+a.get(8)*b.get(5),a.get(0)*b.get(6)+a.get(3)*b.get(7)+a.get(6)*b.get(8),a.get(1)*b.get(6)+a.get(4)*b.get(7)+a.get(7)*b.get(8),a.get(2)*b.get(6)+a.get(5)*b.get(7)+a.get(8)*b.get(8)];c.set(a)};
+Fa.prototype.getString=function(){var a=this._e;return"/"+a[0]+"\t "+a[3]+"\t "+a[6]+"\\\n|"+a[1]+"\t "+a[4]+"\t "+a[7]+"|\n\\"+a[2]+"\t "+a[5]+"\t "+a[8]+"/\n"};Fa.prototype.transpose=function(){this.exchange(1,3);this.exchange(2,6);this.exchange(5,7);return this};Fa.VMmult=function(a,b,c){c[0]=b.get(0)*a[0]+b.get(1)*a[1]+b.get(2)*a[2];c[1]=b.get(3)*a[0]+b.get(4)*a[1]+b.get(5)*a[2];c[2]=b.get(6)*a[0]+b.get(7)*a[1]+b.get(8)*a[2]};var kb=function(){};kb.dot=function(a,b){for(var e=0,c=0;c<a.length;c++)e+=
+a[c]*b[c];return e};kb.scale=function(a,b){for(var e=0;e<a.length;++e)a[e]*=b};kb.maxIndex=function(a){for(var b=0,c=1;c<a.length;++c)a[c]>a[b]&&(b=c);return b};kb.hermiteReduce=function(a){for(var b=[[1,0,0],[0,1,0],[0,0,1]],c=a.length,d=a.map(function(a){return[].concat($jscomp.arrayFromIterable(a))}),g,f=1;f<c;f++)for(var h=f-1;0<=h;h--){g=Math.round(a[f][h]/a[h][h]);for(var k=0;k<=h;k++)d[f][k]-=g*d[h][k];for(k=0;k<c;k++)b[f][k]-=g*b[h][k]}for(c=0;3>c;c++)a[c]=d[c];return new Fa(b)};kb.doPSLQ=
+function(a,b){for(var e=a.length,c=[],d=[],g=0;g<e;++g){c[g]=a[g]/Math.sqrt(kb.dot(a,a));for(var f=0,h=g;h<e;++h)f+=Math.pow(a[h],2);d[g]=Math.sqrt(f)}kb.scale(d,1/d[0]);g=new Fa;a=new Fa;f=[];for(h=0;h<e;h++)f[h]=[];for(h=0;h<e;++h)for(var k=0;k<e-1;++k)f[h][k]=h>k?-c[h]*c[k]/d[k]/d[k+1]:h===k?d[h+1]/d[h]:0;h=kb.hermiteReduce(f);k=h.clone().inverse().transpose();Fa.VMmult(c,k,c);Fa.mult(h,g,g);Fa.mult(a,k,a);for(d=0;d<kb.MAX_ITER;++d){k=[f[0][0],f[1][1]];h=0;Math.pow(this.GAMMA,2)*Math.abs(k[1])>
+Math.pow(this.GAMMA,1)*Math.abs(k[0])&&(h=1);var l=k=0,m=0;h<e-2&&(k=f[h+1][h],l=f[h+1][h+1],m=Math.sqrt(Math.pow(k,2)+Math.pow(l,2)));var n=c[h];c[h]=c[h+1];c[h+1]=n;n=[].concat($jscomp.arrayFromIterable(f[h]));f[h]=f[h+1];f[h+1]=n;g.swRow(h,h+1);a.swCol(h,h+1);n=Array(2);for(var p=0;3>p;p++)n[p]=[];if(h<e-2){for(p=0;p<e-1;++p)for(var q=0;q<e-1;++q)n[p][q]=p===h&&q===h?k/m:p===h&&q===h+1?-l/m:p===h+1&&q===h?l/m:p===h+1&&q===h+1?k/m:p===q&&q!==h||p===q&&q!==h+1?1:0;f=[[f[0][0]*n[0][0]+f[0][1]*n[1][0],
+f[0][0]*n[0][1]+f[0][1]*n[1][1]],[f[1][0]*n[0][0]+f[1][1]*n[1][0],f[1][0]*n[0][1]+f[1][1]*n[1][1]],[f[2][0]*n[0][0]+f[2][1]*n[1][0],f[2][0]*n[0][1]+f[2][1]*n[1][1]]]}h=kb.hermiteReduce(f);k=h.clone().inverse().transpose();Fa.VMmult(c,k,c);Fa.mult(h,g,g);Fa.mult(a,k,a);h=[c[0],c[1],c[2],f[0][0],f[1][1]];for(k=0;k<h.length;++k)if(Math.abs(h[k])<=Math.pow(10,-b+5)){a.transpose();for(b=0;b<c.length;++b)c[b]=-Math.abs(c[b]);return a.getRow(kb.maxIndex(c))}}};$jscomp.global.Object.defineProperties(kb,{MAX_ITER:{configurable:!0,
+enumerable:!0,get:function(){return 20}},GAMMA:{configurable:!0,enumerable:!0,get:function(){return 2/Math.sqrt(3)}}});var cc={},C={drawingstate:{}};C.drawingstate.linecolor="rgb(0,0,255)";C.drawingstate.linecolorraw=[0,0,1];C.drawingstate.pointcolor="rgb(0,255,0)";C.drawingstate.pointcolorraw=[0,1,0];C.drawingstate.textcolor="rgb(0,0,0)";C.drawingstate.textcolorraw=[0,0,0];C.drawingstate.alpha=1;C.drawingstate.pointsize=4;C.drawingstate.linesize=1;C.drawingstate.textsize=null;C.drawingstate.matrix=
+{};C.drawingstate.matrix.a=25;C.drawingstate.matrix.b=0;C.drawingstate.matrix.c=0;C.drawingstate.matrix.d=25;C.drawingstate.matrix.tx=250.5;C.drawingstate.matrix.ty=250.5;C.drawingstate.matrix.det=C.drawingstate.matrix.a*C.drawingstate.matrix.d-C.drawingstate.matrix.b*C.drawingstate.matrix.c;C.drawingstate.matrix.sdet=Math.sqrt(C.drawingstate.matrix.det);C.drawingstate.initialmatrix={};C.drawingstate.initialmatrix.a=C.drawingstate.matrix.a;C.drawingstate.initialmatrix.b=C.drawingstate.matrix.b;C.drawingstate.initialmatrix.c=
+C.drawingstate.matrix.c;C.drawingstate.initialmatrix.d=C.drawingstate.matrix.d;C.drawingstate.initialmatrix.tx=C.drawingstate.matrix.tx;C.drawingstate.initialmatrix.ty=C.drawingstate.matrix.ty;C.drawingstate.initialmatrix.det=C.drawingstate.matrix.det;C.drawingstate.initialmatrix.sdet=C.drawingstate.matrix.sdet;C.clone=function(a){if(null===a||"object"!==typeof a)return a;var b=a.constructor(),c;for(c in a)b[c]=C.clone(a[c]);return b};cc.backup=C.clone(C.drawingstate);cc.stack=[];C.clone(C.drawingstate);
+C.reset=function(){C.drawingstate.matrix.a=C.drawingstate.initialmatrix.a;C.drawingstate.matrix.b=C.drawingstate.initialmatrix.b;C.drawingstate.matrix.c=C.drawingstate.initialmatrix.c;C.drawingstate.matrix.d=C.drawingstate.initialmatrix.d;C.drawingstate.matrix.tx=C.drawingstate.initialmatrix.tx;C.drawingstate.matrix.ty=C.drawingstate.initialmatrix.ty;C.drawingstate.matrix.det=C.drawingstate.initialmatrix.det;C.drawingstate.matrix.sdet=C.drawingstate.initialmatrix.sdet};C.from=function(a,b,c){a/=c;
+b/=c;c=C.drawingstate.matrix;return[(a*c.a-b*c.b+c.tx)/wa,(a*c.c-b*c.d-c.ty)/wa]};C.to=function(a,b){var e=C.drawingstate.matrix;a=a*wa-e.tx;b=b*wa+e.ty;return[(a*e.d-b*e.b)/e.det,-(-a*e.c+b*e.a)/e.det,1]};C.toMat=function(){var a=C.drawingstate.matrix;return g.realMatrix([[a.d,-a.b,-a.tx*a.d-a.ty*a.b],[a.c,-a.a,-a.tx*a.c-a.ty*a.a],[0,0,a.det]])};C.dumpTrafo=function(){function a(a){return Math.round(1E3*a)/1E3}var b=C.drawingstate.matrix;console.log("a:"+a(b.a)+" b:"+a(b.b)+" c:"+a(b.c)+" d:"+a(b.d)+
+" tx:"+a(b.ty)+" ty:"+a(b.tx))};C.setMat=function(a,b,c,d,g,f){var e=C.drawingstate.matrix;e.a=a;e.b=b;e.c=c;e.d=d;e.tx=g;e.ty=f;e.det=a*d-b*c;e.sdet=Math.sqrt(e.det)};C.scaleAndOrigin=function(a,b,c){C.setMat(a,0,0,a,b,c)};C.visibleRect=function(a,b,c,d){var e=c-a,g=b-d;e=ma*g<pa*e?ma/e:pa/g;C.setMat(e,0,0,e,(ma-e*(a+c))/2,(pa-e*(b+d))/2)};C.applyMat=function(a,b,c,d,g,f){var e=C.drawingstate.matrix;C.setMat(e.a*a+e.c*b,e.b*a+e.d*b,e.a*c+e.c*d,e.b*c+e.d*d,e.a*g+e.c*f+e.tx,e.b*g+e.d*f+e.ty)};C.translate=
+function(a,b){C.applyMat(1,0,0,1,a,b)};C.rotate=function(a){var b=Math.cos(a);a=Math.sin(a);C.applyMat(b,a,-a,b,0,0)};C.scale=function(a){C.applyMat(a,0,0,a,0,0)};C.gsave=function(){cc.stack.push(C.clone(C.drawingstate))};C.grestore=function(){0!==cc.stack.length&&(C.drawingstate=cc.stack.pop())};C.greset=function(){C.drawingstate=C.clone(cc.backup);C.drawingstate.matrix.ty-=pa;C.drawingstate.initialmatrix.ty-=pa;cc.stack=[]};C.createnewbackup=function(){C.drawingstate.initialmatrix.a=C.drawingstate.matrix.a;
+C.drawingstate.initialmatrix.b=C.drawingstate.matrix.b;C.drawingstate.initialmatrix.c=C.drawingstate.matrix.c;C.drawingstate.initialmatrix.d=C.drawingstate.matrix.d;C.drawingstate.initialmatrix.tx=C.drawingstate.matrix.tx;C.drawingstate.initialmatrix.ty=C.drawingstate.matrix.ty;C.drawingstate.initialmatrix.det=C.drawingstate.matrix.det;C.drawingstate.initialmatrix.sdet=C.drawingstate.matrix.sdet;cc.backup=C.clone(C.drawingstate)};C.makecolor=function(a,b,c){a=Math.floor(255*a);b=Math.floor(255*b);
+c=Math.floor(255*c);return 1===C.drawingstate.alpha?"rgb("+a+","+b+","+c+")":"rgba("+a+","+b+","+c+","+C.drawingstate.alpha+")"};C.setcolor=function(a){var b=a.value[0].value.real,c=a.value[1].value.real;a=a.value[2].value.real;C.drawingstate.linecolor=C.drawingstate.pointcolor=C.makecolor(b,c,a);C.drawingstate.linecolorraw=C.drawingstate.pointcolorraw=[b,c,a]};C.setlinecolor=function(a){var b=a.value[0].value.real,c=a.value[1].value.real;a=a.value[2].value.real;C.drawingstate.linecolor=C.makecolor(b,
+c,a);C.drawingstate.linecolorraw=[b,c,a]};C.settextcolor=function(a){var b=a.value[0].value.real,c=a.value[1].value.real;a=a.value[2].value.real;C.drawingstate.textcolor=C.makecolor(b,c,a);C.drawingstate.textcolorraw=[b,c,a]};C.setpointcolor=function(a){var b=a.value[0].value.real,c=a.value[1].value.real;a=a.value[2].value.real;C.drawingstate.pointcolor=C.makecolor(b,c,a);C.drawingstate.pointcolorraw=[b,c,a]};C.setalpha=function(a){C.drawingstate.alpha=a.value.real;C.drawingstate.linecolor=C.makecolor(C.drawingstate.linecolorraw[0],
+C.drawingstate.linecolorraw[1],C.drawingstate.linecolorraw[2]);C.drawingstate.pointcolor=C.makecolor(C.drawingstate.pointcolorraw[0],C.drawingstate.pointcolorraw[1],C.drawingstate.pointcolorraw[2]);C.drawingstate.textcolor=C.makecolor(C.drawingstate.textcolorraw[0],C.drawingstate.textcolorraw[1],C.drawingstate.textcolorraw[2])};C.setpointsize=function(a){C.drawingstate.pointsize=a.value.real};C.setlinesize=function(a){C.drawingstate.linesize=a.value.real};C.settextsize=function(a){C.drawingstate.textsize=
+a.value.real};var Aa={clip:"none",pointColor:[1,0,0],lineColor:[0,0,1],pointSize:5,lineSize:1,alpha:1,overhangLine:1,overhangSeg:1,dimDependent:.7,fontFamily:"sans-serif",textColor:[0,0,0],textsize:20,noborder:!1,lineHeight:1.45};d.defaultAppearance&&oe(d.defaultAppearance);var je={},Ne={UL:0,UR:1,LR:2,LL:3},Fe=["in","out","good","backup","prover"],mc=new Float64Array(0),Ub={};Fe.forEach(function(a){Ub[a]=mc});var Ja=mc,yb=mc,ob=mc,jb,pb,lc,sb,fd,Ge=!1,Oe={toString:function(){return"RefineException"}},
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+24;var Ra=[];qa._helper={};qa._helper.duplicatePPLL=function(a,b){return{getInvolved:function(){return[a,b]},toString:function(){return{P:"point",L:"line"}[a.kind]+" "+a.name+" is duplicate of "+b.name},apply:wc(a,b),holds:function(){return g.projectiveDistMinScal(a.homog,b.homog)<l.epsbig}}};qa._helper.duplicatePsLs=function(a,b){return{getInvolved:function(){return[a,b]},toString:function(){return{Ps:"point set",Ls:"line set"}[a.kind]+" "+a.name+" is duplicate of "+b.name},apply:wc(a,b),holds:function(){return qa._helper.isSetEq(a.results.value,
+b.results.value,g.projectiveDistMinScal)}}};qa._helper.duplicateCC=function(a,b){return{getInvolved:function(){return[a,b]},toString:function(){return"Conic "+a.name+" is duplicate of "+b.name},apply:wc(a,b),holds:function(){return g.conicDist(a.matrix,b.matrix)<l.epsbig}}};qa._helper.duplicateCs=function(a,b){return{getInvolved:function(){return[a,b]},toString:function(){return"Conic set"+a.name+" is duplicate of "+b.name},apply:wc(a,b),holds:function(){return qa._helper.isSetEq(a.results,b.results,
+g.conicDist)}}};qa._helper.duplicateSS=function(a,b){return{getInvolved:function(){return[a,b]},toString:function(){return"Segment "+a.name+" is duplicate of "+b.name},apply:wc(a,b),holds:function(){var e=a.startpos,c=a.endpos,d=b.startpos,f=b.endpos,h=g.projectiveDistMinScal(e,d);h+=g.projectiveDistMinScal(c,f);c=g.projectiveDistMinScal(c,d);c+=g.projectiveDistMinScal(e,f);return Math.min(h,c)<l.epsbig}}};qa.P=function(a){r.points.forEach(function(b){a.name!==b.name&&(b=qa._helper.duplicatePPLL(a,
+b),b.holds()&&Ra.push(b))})};qa.Ps=function(a){r.sets.points.forEach(function(b){a.name!==b.name&&(b=qa._helper.duplicatePsLs(a,b),b.holds()&&Ra.push(b))})};qa.Ls=function(a){r.sets.lines.forEach(function(b){a.name!==b.name&&(b=qa._helper.duplicatePsLs(a,b),b.holds()&&Ra.push(b))})};qa.Cs=function(a){r.sets.conics.forEach(function(b){a.name!==b.name&&(b=qa._helper.duplicateCs(a,b),b.holds()&&Ra.push(b))})};qa.L=function(a){r.lines.forEach(function(b){a.name!==b.name&&a.kind===b.kind&&(b=qa._helper.duplicatePPLL(a,
+b),b.holds()&&Ra.push(b))})};qa.S=function(a){r.lines.forEach(function(b){a.name!==b.name&&"S"===b.kind&&(b=qa._helper.duplicateSS(a,b),b.holds()&&Ra.push(b))})};qa.C=function(a){r.conics.forEach(function(b){a.name!==b.name&&(b=qa._helper.duplicateCC(a,b),b.holds()&&Ra.push(b))})};qa._helper.isSetEq=function(a,b,c){a=a.slice();b=b.slice();if(a.length!==b.length)return!1;if(0===a.length&&0===b.length)return!0;var e=a.shift(),d=b.reduce(function(a,b,d,g){return c(b,e)<c(g[a],e)?d:a},0);return c(b[d],
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+c);b=g.add(a,b);return{type:"homog",value:b}};m.FreeLine={};m.FreeLine.kind="L";m.FreeLine.signature=[];m.FreeLine.isMovable=!0;m.FreeLine.initialize=function(a){a=m._helper.initializeLine(a);ea(a)};m.FreeLine.getParamForInput=function(a,b,c){"mouse"===c?(a=g.cross(b,g.ez),a=g.cross(a,b)):a="homog"===c?b:g.turnIntoCSList([l.zero,l.zero,l.zero]);return g.normalizeMax(a)};m.FreeLine.getParamFromState=function(a){return ha(3)};m.FreeLine.putParamToState=function(a,b){ea(b)};m.FreeLine.updatePosition=
+function(a){var b=ha(3);ea(b);a.homog=u.withUsage(b,"Line")};m.FreeLine.getRandomMove=m._helper.getRandMove;m.FreeLine.stateSize=6;m.RandomPoint={};m.RandomPoint.kind="P";m.RandomPoint.signature=[];m.RandomPoint.updatePosition=function(a){a.homog=g.realVector([100*Math.random(),100*Math.random(),100*Math.random()]);a.homog=g.normalizeMax(a.homog);a.homog=u.withUsage(a.homog,"Point")};m.Join={};m.Join.kind="L";m.Join.signature=["P","P"];m.Join.updatePosition=function(a){a.homog=g.cross(r.csnames[a.args[0]].homog,
+r.csnames[a.args[1]].homog);a.homog=g.normalizeMax(a.homog);a.homog=u.withUsage(a.homog,"Line")};m.Segment={};m.Segment.kind="S";m.Segment.signature=["P","P"];m.Segment.updatePosition=function(a){var b=r.csnames[a.args[0]],c=r.csnames[a.args[1]];m.Segment.setSegmentPos(a,g.cross(b.homog,c.homog),g.scalmult(c.homog.value[2],b.homog),g.scalmult(b.homog.value[2],c.homog))};m.Segment.setSegmentPos=function(a,b,c,d){b=g.normalizeMax(b);a.homog=u.withUsage(b,"Line");b=g.turnIntoCSList([c,d]);b=g.normalizeMax(b);
+a.startpos=b.value[0];a.endpos=b.value[1]};m.Meet={};m.Meet.kind="P";m.Meet.signature=["L","L"];m.Meet.updatePosition=function(a){a.homog=g.cross(r.csnames[a.args[0]].homog,r.csnames[a.args[1]].homog);a.homog=g.normalizeMax(a.homog);a.homog=u.withUsage(a.homog,"Point")};m.Meet.visiblecheck=function(a){var b=!0,c=r.csnames[a.args[0]],d=r.csnames[a.args[1]];"S"===c.kind&&(b=Td(a,c));b&&"S"===d.kind&&(b=Td(a,d));a.isshowing=b};m._helper.midpoint=function(a,b){return g.normalizeMax(g.add(g.scalmult(b.value[2],
+a),g.scalmult(a.value[2],b)))};m.Mid={};m.Mid.kind="P";m.Mid.signature=["P","P"];m.Mid.updatePosition=function(a){var b=m._helper.midpoint(r.csnames[a.args[0]].homog,r.csnames[a.args[1]].homog);a.homog=u.withUsage(b,"Point")};m.Perp={};m.Perp.kind="L";m.Perp.signature=["L","P"];m.Perp.updatePosition=function(a){var b=r.csnames[a.args[0]].homog,c=r.csnames[a.args[1]].homog;b=g.turnIntoCSList([b.value[0],b.value[1],l.zero]);a.homog=g.cross(b,c);a.homog=g.normalizeMax(a.homog);a.homog=u.withUsage(a.homog,
+"Line")};m.Para={};m.Para.kind="L";m.Para.signature=["L","P"];m.Para.updatePosition=function(a){var b=r.csnames[a.args[1]].homog;a.homog=g.cross(g.cross(g.linfty,r.csnames[a.args[0]].homog),b);a.homog=g.normalizeMax(a.homog);a.homog=u.withUsage(a.homog,"Line")};m.Horizontal={};m.Horizontal.kind="L";m.Horizontal.signature=["P"];m.Horizontal.updatePosition=function(a){a.homog=g.cross(g.ex,r.csnames[a.args[0]].homog);a.homog=g.normalizeMax(a.homog);a.homog=u.withUsage(a.homog,"Line")};m.HorizontalLine=
+{};m.HorizontalLine.kind="L";m.HorizontalLine.signature=[];m.HorizontalLine.isMovable=!0;m.HorizontalLine.initialize=function(a){a=m._helper.initializeLine(a);a=g.turnIntoCSList([l.zero,a.value[1],a.value[2]]);a=g.normalizeMax(a);ea(a)};m.HorizontalLine.getParamForInput=function(a,b,c){if("mouse"===c)b=g.cross(b,g.ex);else if("homog"===c){if(0!==b.value[0].real||0!==b.value[0].imag)b=g.turnIntoCSList([l.zero,b.value[1],b.value[2]])}else b=g.turnIntoCSList([l.zero,l.zero,l.zero]);return g.normalizeMax(b)};
+m.HorizontalLine.getParamFromState=function(a){return ha(3)};m.HorizontalLine.putParamToState=function(a,b){ea(b)};m.HorizontalLine.updatePosition=function(a){var b=ha(3);ea(b);a.homog=u.withUsage(b,"Line")};m.HorizontalLine.getRandomMove=m._helper.getRandMove;m.HorizontalLine.stateSize=6;m.Vertical={};m.Vertical.kind="L";m.Vertical.signature=["P"];m.Vertical.updatePosition=function(a){a.homog=g.cross(g.ey,r.csnames[a.args[0]].homog);a.homog=g.normalizeMax(a.homog);a.homog=u.withUsage(a.homog,"Line")};
+m.VerticalLine={};m.VerticalLine.kind="L";m.VerticalLine.signature=[];m.VerticalLine.isMovable=!0;m.VerticalLine.initialize=function(a){a=m._helper.initializeLine(a);a=g.turnIntoCSList([a.value[0],l.zero,a.value[2]]);a=g.normalizeMax(a);ea(a)};m.VerticalLine.getParamForInput=function(a,b,c){if("mouse"===c)b=g.cross(b,g.ey);else if("homog"===c){if(0!==b.value[1].real||0!==b.value[1].imag)b=g.turnIntoCSList([b.value[0],l.zero,b.value[2]])}else b=g.turnIntoCSList([l.zero,l.zero,l.zero]);return g.normalizeMax(b)};
+m.VerticalLine.getParamFromState=function(a){return ha(3)};m.VerticalLine.putParamToState=function(a,b){ea(b)};m.VerticalLine.updatePosition=function(a){var b=ha(3);ea(b);a.homog=u.withUsage(b,"Line")};m.VerticalLine.getRandomMove=m._helper.getRandMove;m.VerticalLine.stateSize=6;m.LineByFixedAngle={};m.LineByFixedAngle.kind="L";m.LineByFixedAngle.signature=["L","P"];m.LineByFixedAngle.initialize=function(a){var b=l._helper.input(a.angle),c=l.cos(b);b=l.sin(b);a.rot=g.turnIntoCSList([g.turnIntoCSList([b,
+c,l.zero]),g.turnIntoCSList([l.neg(c),b,l.zero]),g.turnIntoCSList([l.zero,l.zero,l.zero])])};m.LineByFixedAngle.updatePosition=function(a){var b=r.csnames[a.args[1]],c=g.productMV(a.rot,r.csnames[a.args[0]].homog);a.homog=g.cross(b.homog,c);a.homog=g.normalizeMax(a.homog);a.homog=u.withUsage(a.homog,"Line")};m.Through={};m.Through.kind="L";m.Through.signature=["P"];m.Through.isMovable=!0;m.Through.initialize=function(a){a=a.dir?u.wrap(a.dir):g.realVector([a.pos[1],-a.pos[0],0]);ea(a)};m.Through.getParamForInput=
+function(a,b,c){a="dir"===c||"mouse"===c?g.cross(r.csnames[a.args[0]].homog,b):"homog"===c?b:g.turnIntoCSList([l.zero,l.zero,l.zero]);a=g.cross(g.linfty,a);return g.normalizeMax(a)};m.Through.getParamFromState=function(a){return ha(3)};m.Through.putParamToState=function(a,b){ea(b)};m.Through.updatePosition=function(a){var b=ha(3);ea(b);b=g.cross(r.csnames[a.args[0]].homog,b);b=g.normalizeMax(b);a.homog=u.withUsage(b,"Line")};m.Through.getRandomMove=m._helper.getRandMove;m.Through.stateSize=6;m.Through.set_angle=
+function(a,b){if("number"===b.ctype){var e=l.cos(b);b=l.sin(b);e=g.turnIntoCSList([e,b,l.real(0)]);Ta(a,e,"dir")}};m.Through.set_slope=function(a,b){"number"===b.ctype&&(b=g.turnIntoCSList([l.real(1),b,l.real(0)]),Ta(a,b,"dir"))};m.Free={};m.Free.kind="P";m.Free.signature=[];m.Free.isMovable=!0;m.Free.initialize=function(a){a=m._helper.initializePoint(a);ea(a)};m.Free.getParamForInput=function(a,b,c){if("mouse"===c&&Cc&&0!==Va){b=g.normalizeZ(b);a=b.value[0].value.real;c=b.value[1].value.real;var e=
+Math.round(a/Va)*Va,d=Math.round(c/Va)*Va;Math.abs(e-a)<Tb&&Math.abs(d-c)<Tb&&(b=g.realVector([e,d,1]))}return g.normalizeMax(b)};m.Free.getParamFromState=function(a){return ha(3)};m.Free.putParamToState=function(a,b){ea(b)};m.Free.updatePosition=function(a){var b=ha(3);ea(b);a.homog=u.withUsage(b,"Point")};m.Free.getRandomMove=m._helper.getRandPointMove;m.Free.stateSize=6;m._helper.projectPointToLine=function(a,b){var e=g.turnIntoCSList([b.value[0],b.value[1],l.zero]);a=g.cross(e,a);return g.normalizeMax(g.cross(a,
+b))};m.PointOnLine={};m.PointOnLine.kind="P";m.PointOnLine.signature=["L"];m.PointOnLine.isMovable=!0;m.PointOnLine.initialize=function(a){var b=m._helper.initializePoint(a);a=r.csnames[a.args[0]].homog;b=m._helper.projectPointToLine(b,a);b=g.normalizeMax(b);var c=g.cross(g.linfty,b);g.normalizeMax(c);ea(b);ea(a);lc=!1};m.PointOnLine.updatePosition=function(a,b){var e=r.csnames[a.args[0]].homog;var c=ha(3);ha(3);if(!b){jb=a.stateIdx;var d=Ja;Ja=ob;b=ha(3);var f=ha(3);Ja=d;d=g.cross(f,e);g._helper.isAlmostZero(d)&&
+(d=g.cross(g.linfty,e));b=m._helper.CircleMP(d,b);b=m._helper.IntersectLC(e,b);d=m._helper.pointReflection(d,c);c=qd(b[0],b[1],c,d)[0]}c=g.normalizeMax(c);ea(c);ea(e);a.homog=u.withUsage(c,"Point")};m.PointOnLine.getParamForInput=function(a,b,c){a=r.csnames[a.args[0]].homog;b=m._helper.projectPointToLine(b,a);"mouse"===c&&Cc&&0!==Va&&(b=m._helper.snapPointToLine(b,a));return b};m.PointOnLine.getParamFromState=function(a){return ha(3)};m.PointOnLine.putParamToState=function(a,b){return ea(b)};m.PointOnLine.getRandomMove=
+m._helper.getRandPointMove;m.PointOnLine.stateSize=12;m.PointOnCircle={};m.PointOnCircle.kind="P";m.PointOnCircle.signature=["C"];m.PointOnCircle.isMovable=!0;m.PointOnCircle.initialize=function(a){var b=r.csnames[a.args[0]];a=g.normalizeZ(m._helper.initializePoint(a));var c=g.normalizeZ(m._helper.CenterOfCircle(b.matrix)),d=g.sub(a,c);d=g.turnIntoCSList([d.value[1],l.neg(d.value[0]),l.zero]);c=g.cross(a,c);b=m._helper.IntersectLC(c,b.matrix);c=g.projectiveDistMinScal(a,b[0]);g.projectiveDistMinScal(a,
+b[1])<c?(a=b[1],b=b[0]):(a=b[0],b=b[1]);ea(d);ea(a);ea(b);lc=!1};m.PointOnCircle.putParamToState=function(a,b){ea(b)};m.PointOnCircle.getParamFromState=function(a){return ha(3)};m.PointOnCircle.getParamForInput=function(a,b,c){c=g.normalizeZ(m._helper.CenterOfCircle(r.csnames[a.args[0]].matrix));b=g.sub(b,c);jb=a.stateIdx;a=ha(3);var e=g.normalizeZ(ha(3));c=g.sub(e,c);0>l.sub(l.mult(a.value[0],c.value[1]),l.mult(a.value[1],c.value[0])).value.real&&(b=g.neg(b));return g.turnIntoCSList([b.value[1],
+l.neg(b.value[0]),l.zero])};m.PointOnCircle.parameterPath=function(a,b,c,d,f){d=g.normalizeAbs(d);f=g.normalizeAbs(f);var e=g.scalproduct(d,f);if(0<=e.value.real)return Wd(a,b,c,d,f);a=g.turnIntoCSList([l.sub(d.value[1],f.value[1]),l.sub(f.value[0],d.value[0]),l.zero]);e=g.scalproduct(d,a);0>e.value.real&&(a=g.neg(a));0>b?(b=2*b+1,c=b*b,e=.25/(1+c),c=l.complex(2*b*e+.25,(1-c)*e)):(b=2*b-1,c=b*b,e=.25/(1+c),c=l.complex(2*b*e+.75,(1-c)*e));var h=l.sub(l.real(1),c);b=l.mult(c,c);e=l.mult(h,h);c=l.mult(c,
+h);d=g.scalmult(e,d);d=g.add(d,g.scalmult(c,a));return d=g.add(d,g.scalmult(b,f))};m.PointOnCircle.updatePosition=function(a){var b=ha(3);ea(b);var c=r.csnames[a.args[0]];b=g.productMV(c.matrix,b);c=m._helper.IntersectLC(b,c.matrix);c=mb(c[0],c[1]);b=g.normalizeMax(c.value[0]);a.homog=u.withUsage(b,"Point");a.antipodalPoint=c.value[1]};m.PointOnCircle.getRandomMove=m._helper.getRandPointMove;m.PointOnCircle.stateSize=6+mb.stateSize;m.PointOnCircle.get_angle=function(a){var b=m._helper.CenterOfCircle(r.csnames[a.args[0]].matrix),
+c=g._helper.isAlmostFarpoint;if(c(a.homog)||c(b))return h;a=g.normalizeZ(a.homog);b=g.normalizeZ(b);b=g.sub(a,b);b=l.arctan2(b.value[0],b.value[1]);a=l.real(Hc);b=l.mod(l.add(b,a),a);return u.withUsage(b,"Angle")};m.PointOnCircle.set_angle=function(a,b){if("number"===b.ctype){var e=r.csnames[a.args[0]],c=m._helper.CenterOfCircle(e.matrix);if(!g._helper.isAlmostFarpoint(c)){c=g.normalizeZ(c);var d=l.cos(b);b=l.sin(b);e=g.turnIntoCSList([l.mult(d,e.radius),l.mult(b,e.radius),l.real(0)]);Ta(a,g.add(c,
+e),"homog")}}return h};m.OtherPointOnCircle={};m.OtherPointOnCircle.kind="P";m.OtherPointOnCircle.signature=["P"];m.OtherPointOnCircle.signatureConstraints=function(a){return"PointOnCircle"===r.csnames[a.args[0]].type};m.OtherPointOnCircle.updatePosition=function(a){var b=r.csnames[a.args[0]].antipodalPoint;b=g.normalizeMax(b);a.homog=u.withUsage(b,"Point")};m.PointOnSegment={};m.PointOnSegment.kind="P";m.PointOnSegment.signature=["S"];m.PointOnSegment.isMovable=!0;m.PointOnSegment.initialize=function(a){var b=
+m._helper.initializePoint(a);a=m.PointOnSegment.getParamForInput(a,b);wb(a)};m.PointOnSegment.getParamForInput=function(a,b,c){a=r.csnames[a.args[0]];var e=a.homog;"mouse"===c&&Cc&&0!==Va&&(b=m._helper.snapPointToLine(b,e));c=g.turnIntoCSList([e.value[0],e.value[1],l.zero]);e=g.sub(a.startpos,a.endpos);b=g.crossratio3(e,a.startpos,a.endpos,b,c);0>b.value.real&&(b=l.complex(0,b.value.imag));1<b.value.real&&(b=l.complex(1,b.value.imag));return b};m.PointOnSegment.getParamFromState=function(a){return hc()};
+m.PointOnSegment.putParamToState=function(a,b){wb(b)};m.PointOnSegment.updatePosition=function(a){var b=hc();wb(b);var c=r.csnames[a.args[0]],d=c.startpos;c=g.sub(c.endpos,d);b=g.add(d,g.scalmult(b,c));b=g.normalizeMax(b);a.homog=u.withUsage(b,"Point")};m.PointOnSegment.getRandomMove=m._helper.getRandPointMove;m.PointOnSegment.stateSize=2;m._helper.projectPointToCircle=function(a,b){var e=m._helper.CenterOfCircle(a.matrix);e=g.normalizeMax(e);e=g.normalizeMax(g.cross(b,e));a=m._helper.IntersectLC(e,
+a.matrix);e=g.projectiveDistMinScal(b,a[0]);b=g.projectiveDistMinScal(b,a[1]);return e<b?a[0]:a[1]};m.PointOnArc={};m.PointOnArc.kind="P";m.PointOnArc.signature=["C"];m.PointOnArc.signatureConstraints=function(a){return r.csnames[a.args[0]].isArc};m.PointOnArc.isMovable=!0;m.PointOnArc.initialize=function(a){var b=m._helper.initializePoint(a);a=m.PointOnArc.getParamForInput(a,b);ea(a)};m.PointOnArc.getParamForInput=function(a,b){a=r.csnames[a.args[0]];b=m._helper.projectPointToCircle(a,b);b=g.normalizeMax(g.crossratio3harm(a.startPoint,
+a.endPoint,a.viaPoint,b,g.ii));a=l.div(b.value[0],b.value[1]);0>a.value.real&&(b=-1>a.value.real?g.realVector([1,0]):g.realVector([0,1]));return b};m.PointOnArc.getParamFromState=function(a){return ha(2)};m.PointOnArc.putParamToState=function(a,b){ea(b)};m.PointOnArc.updatePosition=function(a){var b=r.csnames[a.args[0]],c=b.startPoint,d=b.viaPoint,f=b.endPoint,h=g.ii,k=g.cross(c,h);d=g.cross(d,h);var n=g.cross(f,h);n=g.turnIntoCSList([k,n]);k=g.transpose(n);n=g.conjugate(n);k=g.productMM(n,k);d=g.productMV(n,
+d);k=g.productMV(g.adjoint2(k),d);d=k.value[0];k=k.value[1];n=ha(2);ea(n);c=g.normalizeMax(g.add(g.scalmult(l.mult(d,n.value[0]),c),g.scalmult(l.mult(k,n.value[1]),f)));b=m._helper.conicOtherIntersection(b.matrix,h,c);a.homog=u.withUsage(b,"Point")};m.PointOnArc.getRandomMove=m._helper.getRandPointMove;m.PointOnArc.stateSize=4;m._helper.CenterOfCircle=function(a){return g.turnIntoCSList([a.value[2].value[0],a.value[2].value[1],l.neg(a.value[0].value[0])])};m._helper.CenterOfConic=function(a){a=g.adjoint3(a);
+return{ctype:"list",value:[a.value[2].value[0],a.value[2].value[1],a.value[2].value[2]]}};m.CenterOfConic={};m.CenterOfConic.kind="P";m.CenterOfConic.signature=["C"];m.CenterOfConic.updatePosition=function(a){var b=m._helper.CenterOfConic(r.csnames[a.args[0]].matrix);a.homog=b;a.homog=g.normalizeMax(a.homog);a.homog=u.withUsage(a.homog,"Point")};m._helper.CircleMP=function(a,b){var e=a.value[0],c=a.value[1];a=l.neg(a.value[2]);var d=l.zero;e=g.turnIntoCSList([g.turnIntoCSList([a,d,e]),g.turnIntoCSList([d,
+a,c]),g.turnIntoCSList([e,c,d])]);c=u.mult(u.mult(b,e),b);b=u.mult(u.mult(b,g.fund),b);c=u.mult(c,g.fund);b=u.mult(b,e);return g.sub(c,b)};m.CircleMP={};m.CircleMP.kind="C";m.CircleMP.signature=["P","P"];m.CircleMP.updatePosition=function(a){a.matrix=m._helper.CircleMP(r.csnames[a.args[0]].homog,r.csnames[a.args[1]].homog);a.matrix=g.normalizeMax(a.matrix);a.matrix=u.withUsage(a.matrix,"Circle")};m.CircleMr={};m.CircleMr.kind="C";m.CircleMr.signature=["P"];m.CircleMr.isMovable=!0;m.CircleMr.initialize=
+function(a){wb(l.real(a.radius))};m.CircleMr.getParamForInput=function(a,b,c){if("radius"===c)return b;a=r.csnames[a.args[0]].homog;a=g.normalizeZ(a);b=g.normalizeZ(b);b=g.sub(a,b);return b=g.abs(b)};m.CircleMr.getParamFromState=function(a){return hc()};m.CircleMr.putParamToState=function(a,b){wb(b)};m.CircleMr.updatePosition=function(a){var b=hc();wb(b);var c=r.csnames[a.args[0]].homog,d=l.mult(c.value[2],b);d=l.mult(d,d);if(!l._helper.isFinite(d)&&!l._helper.isNaN(d))return g.fund;c=m._helper.ScaledCircleMrr(c,
+d);a.matrix=u.withUsage(c,"Circle");a.radius=b};m.CircleMr.getRandomMove=function(a){a=a.radius;return{type:"radius",value:l.abs(a).value.real<l.eps?l.getRandComplex(.05,.1):l.mult(a,l.getRandReal(.95,1.05))}};m.CircleMr.stateSize=2;m.CircleMr.set_radius=function(a,b){"number"===b.ctype&&Ta(a,b,"radius")};m._helper.ScaledCircleMrr=function(a,b){var e=a.value[0],c=a.value[1];a=l.neg(a.value[2]);a=g.scalmult(a,g.turnIntoCSList([e,c,a])).value;e=g.turnIntoCSList([e,c]);b=l.sub(g.scalproduct(e,e),b);
+b=m._helper.buildConicMatrix([a[2],l.zero,a[2],a[0],a[1],b]);return g.normalizeMax(b)};m.Compass={};m.Compass.kind="C";m.Compass.signature=["P","P","P"];m.Compass.updatePosition=function(a){var b=r.csnames[a.args[0]].homog,c=r.csnames[a.args[1]].homog,d=r.csnames[a.args[2]].homog,f=b.value[2],h=c.value[2],k=d.value[2];b=g.scalmult(l.mult(h,k),b);c=g.scalmult(l.mult(f,k),c);d=g.scalmult(l.mult(f,h),d);b=g.sub(c,b);d=m._helper.ScaledCircleMrr(d,g.scalproduct(b,b));a.matrix=u.withUsage(d,"Circle")};
+m._helper.getConicType=function(a){if(1E-16>l.abs(g.det(a)).value.real)return"degenerate";var b=l.mult(a.value[0].value[0],a.value[1].value[1]);b=l.sub(b,l.pow(a.value[0].value[1],l.real(2)));b=b.value.real;return 1E-16>Math.abs(b)?"parabola":1E-16<b?"ellipsoid":"hyperbola"};m._helper.ConicBy5=function(a,b,c,d,f,h){a=g.turnIntoCSList([g.cross(c,d)]);var e=g.turnIntoCSList([g.cross(b,f)]);b=g.turnIntoCSList([g.cross(b,c)]);d=g.turnIntoCSList([g.cross(d,f)]);return m._helper.conicFromTwoDegenerates(a,
+e,b,d,h)};m._helper.conicFromTwoDegenerates=function(a,b,c,d,f){a=u.mult(g.transpose(b),a);c=u.mult(g.transpose(d),c);a=g.add(a,g.transpose(a));c=g.add(c,g.transpose(c));d=u.mult(u.mult(f,a),f);f=u.mult(u.mult(f,c),f);c=u.mult(d,c);f=u.mult(f,a);return g.sub(c,f)};m.ConicBy5={};m.ConicBy5.kind="C";m.ConicBy5.signature=["P","P","P","P","P"];m.ConicBy5.updatePosition=function(a){var b=m._helper.ConicBy5(a,r.csnames[a.args[0]].homog,r.csnames[a.args[1]].homog,r.csnames[a.args[2]].homog,r.csnames[a.args[3]].homog,
+r.csnames[a.args[4]].homog);a.matrix=b;a.matrix=g.normalizeMax(a.matrix);a.matrix=u.withUsage(a.matrix,"Conic")};m.FreeConic={};m.FreeConic.kind="C";m.FreeConic.signature=[];m.FreeConic.initialize=function(a){var b=a.pos?m._helper.inputConic(a.pos):g.zeromatrix(l.real(3),l.real(3));m.FreeConic.putParamToState(a,b)};m.FreeConic.getParamForInput=function(a,b,c){return g.normalizeMax(b)};m.FreeConic.getParamFromState=function(a){return m._helper.buildConicMatrix(ha(6).value)};m.FreeConic.putParamToState=
+function(a,b){for(a=0;3>a;++a)for(var e=0;e<=a;++e)wb(b.value[a].value[e])};m.FreeConic.updatePosition=function(a){var b=ha(6);ea(b);a.matrix=m._helper.buildConicMatrix(b.value);a.matrix=g.normalizeMax(a.matrix);a.matrix=u.withUsage(a.matrix,"Conic")};m.FreeConic.set_matrix=function(a,b){g._helper.isNumberMatrixMN(b,3,3)&&Ta(a,g.add(b,g.transpose(b)),"matrix")};m.FreeConic.stateSize=12;m._helper.buildConicMatrix=function(a){var b=a[1],c=a[2],d=a[3],f=a[4],h=a[5];return g.turnIntoCSList([g.turnIntoCSList([a[0],
+b,d]),g.turnIntoCSList([b,c,f]),g.turnIntoCSList([d,f,h])])};m._helper.flattenConicMatrix=function(a){return g.turnIntoCSList([a.value[0].value[0],a.value[0].value[1],a.value[1].value[1],a.value[0].value[2],a.value[1].value[2],a.value[2].value[2]])};m._helper.splitDegenConic=function(a){var b=g.adjoint3(a),c=0,d,f=l.abs2(b.value[0].value[0]).value.real;for(d=1;3>d;d++){var h=l.abs2(b.value[d].value[d]).value.real;h>f&&(c=d,f=h)}d=l.sqrt(l.mult(l.real(-1),b.value[c].value[c]));if(1E-16>l.abs2(d).value.real)return a=
+g.turnIntoCSList([l.zero,l.zero,l.zero]),[a,a];c=l.real(c+1);h=g.column(b,c);h=g.scaldiv(d,h);d=h.value[0];f=h.value[1];h=h.value[2];d=g.turnIntoCSList([g.turnIntoCSList([l.real(0),h,l.mult(l.real(-1),f)]),g.turnIntoCSList([l.mult(l.real(-1),h),l.real(0),d]),g.turnIntoCSList([f,l.mult(l.real(-1),d),l.real(0)])]);a=g.add(a,d);var k=0;for(d=f=b=0;3>d;d++)for(c=0;3>c;c++)h=l.abs2(a.value[d].value[c]).value.real,h>f&&(k=d,b=c,f=h);d=a.value[k];a=g.transpose(a);a=a.value[b];d=g.normalizeMax(d);a=g.normalizeMax(a);
+d=u.withUsage(d,"Line");a=u.withUsage(a,"Line");return[d,a]};m._helper.inputConic=function(a){var b="xx xy yy xz yz zz".split(" ").map(function(b){var e=l._helper.input(a[b]);b[0]!==b[1]&&(e=l.realmult(.5,e));return e});return m._helper.buildConicMatrix(b)};m.SelectConic={};m.SelectConic.kind="C";m.SelectConic.signature=["Cs"];m.SelectConic.initialize=function(a){if(void 0!==a.index)return a.index-1;var b=m._helper.inputConic(a.pos);a=r.csnames[a.args[0]].results;for(var c=g.conicDist(b,a[0]),d=0,
+f=1;f<a.length;++f){var h=g.conicDist(b,a[f]);h<c&&(c=h,d=f)}return d};m.SelectConic.updatePosition=function(a){a.matrix=r.csnames[a.args[0]].results[a.param];a.matrix=g.normalizeMax(a.matrix);a.matrix=u.withUsage(a.matrix,"Conic")};m._helper.ConicBy4p1l=function(a,b,c,d,f,h){var e=g.scalproduct(b,h),k=g.scalproduct(c,h),n=g.scalproduct(d,h),x=g.scalproduct(f,h),v=g.det3(c,d,f),p=g.det3(b,c,f),q=g.det3(b,d,f),r=g.det3(b,c,d),t=l.mult;k=l.sqrt(t(t(k,x),t(v,p)));e=l.sqrt(t(t(e,n),t(q,r)));n=g.cross(g.cross(b,
+d),h);h=g.cross(g.cross(c,f),h);n=g.scalmult(k,n);e=g.scalmult(e,h);h=g.normalizeMax(g.add(n,e));e=g.normalizeMax(g.sub(n,e));e=mb(h,e);h=m._helper.ConicBy5(a,b,c,d,f,e.value[0]);a=m._helper.ConicBy5(a,b,c,d,f,e.value[1]);return[g.normalizeMax(h),g.normalizeMax(a)]};m.ConicBy4p1l={};m.ConicBy4p1l.kind="Cs";m.ConicBy4p1l.signature=["P","P","P","P","L"];m.ConicBy4p1l.updatePosition=function(a){var b=m._helper.ConicBy4p1l(a,r.csnames[a.args[0]].homog,r.csnames[a.args[1]].homog,r.csnames[a.args[2]].homog,
+r.csnames[a.args[3]].homog,r.csnames[a.args[4]].homog);a.results=b};m.ConicBy4p1l.stateSize=mb.stateSize;m._helper.ConicBy3p2l=function(a,b,c,d,f){function e(a,b,e,c){return l.sub(l.mult(a,c),l.mult(b,e))}var h=g.cross(a,b),k=g.cross(d,f);d=g.cross(d,h);f=g.cross(f,h);h=g.turnIntoCSList([d,f,k]);c=g.productVM(c,g.adjoint3(h));k=g.adjoint3(g.turnIntoCSList([g.scalmult(c.value[0],d),g.scalmult(c.value[1],f),g.scalmult(c.value[2],k)]));c=g.transpose(k);d=l.mult;f=g.productMV(c,a);a=f.value[0];f=f.value[1];
+h=g.productMV(c,b);b=h.value[0];h=h.value[1];var m=l.sqrt(d(a,f)),n=l.sqrt(d(b,h)),x,v=Array(4);for(x=0;4>x;++x){var p=(x&2)-1,q=d(l.real(((x&1)<<1)-1),m),r=d(l.real(p),n),t=e(f,q,h,r),u=e(b,r,a,q);p=e(a,f,b,h);var N=l.add(l.add(e(b,h,a,f),e(h,r,f,q)),e(r,b,q,a));q=d(t,t);r=d(u,u);var w=d(N,N),y=d(t,u);t=d(t,N);u=d(u,N);y=l.sub(y,d(l.real(.5),d(p,p)));p=g.turnIntoCSList([g.turnIntoCSList([q,y,t]),g.turnIntoCSList([y,r,u]),g.turnIntoCSList([t,u,w])]);p=g.productMM(k,g.productMM(p,c));p=g.turnIntoCSList([p.value[0].value[0],
+p.value[0].value[1],p.value[0].value[2],p.value[1].value[1],p.value[1].value[2],p.value[2].value[2]]);v[x]=p}return v};m.ConicBy3p2l={};m.ConicBy3p2l.kind="Cs";m.ConicBy3p2l.signature=["P","P","P","L","L"];m.ConicBy3p2l.updatePosition=function(a){var b=m._helper.ConicBy3p2l(r.csnames[a.args[0]].homog,r.csnames[a.args[1]].homog,r.csnames[a.args[2]].homog,r.csnames[a.args[3]].homog,r.csnames[a.args[4]].homog);b=be(b);for(var c=Array(4),d=0;4>d;++d){var f=b[d].value;c[d]=g.turnIntoCSList([g.turnIntoCSList([f[0],
+f[1],f[2]]),g.turnIntoCSList([f[1],f[3],f[4]]),g.turnIntoCSList([f[2],f[4],f[5]])])}a.results=c};m.ConicBy3p2l.stateSize=48;m.ConicBy2p3l={};m.ConicBy2p3l.kind="Cs";m.ConicBy2p3l.signature=["P","P","L","L","L"];m.ConicBy2p3l.updatePosition=function(a){var b=m._helper.ConicBy3p2l(r.csnames[a.args[2]].homog,r.csnames[a.args[3]].homog,r.csnames[a.args[4]].homog,r.csnames[a.args[0]].homog,r.csnames[a.args[1]].homog);b=be(b);for(var c=Array(4),d=0;4>d;++d){var f=b[d].value;f=g.turnIntoCSList([g.turnIntoCSList([f[0],
+f[1],f[2]]),g.turnIntoCSList([f[1],f[3],f[4]]),g.turnIntoCSList([f[2],f[4],f[5]])]);c[d]=g.normalizeMax(g.adjoint3(f))}a.results=c};m.ConicBy2p3l.stateSize=48;m.ConicBy1p4l={};m.ConicBy1p4l.kind="Cs";m.ConicBy1p4l.signature=["P","L","L","L","L"];m.ConicBy1p4l.updatePosition=function(a){var b=m._helper.ConicBy4p1l(a,r.csnames[a.args[1]].homog,r.csnames[a.args[2]].homog,r.csnames[a.args[3]].homog,r.csnames[a.args[4]].homog,r.csnames[a.args[0]].homog),c=b[0];b=b[1];c=g.adjoint3(c);b=g.adjoint3(b);b=
+[c,b];a.results=b};m.ConicBy1p4l.stateSize=mb.stateSize;m.ConicParabolaPL={};m.ConicParabolaPL.kind="C";m.ConicParabolaPL.signature=["P","L"];m.ConicParabolaPL.updatePosition=function(a){var b=r.csnames[a.args[0]].homog.value,c=r.csnames[a.args[1]].homog.value,d=l.mult,f=l.neg,h=l.add,k=l.sub,n=b[0],p=b[1],q=b[2],t=c[0];b=c[1];c=c[2];var w=d(q,q),y=d(t,t),z=d(b,b),A=d(q,c),B=f(q);q=h(y,z);z=d(w,z);y=d(w,y);f=d(f(w),d(t,b));t=d(B,h(d(n,q),d(A,t)));b=d(B,h(d(p,q),d(A,b)));d=k(d(h(d(n,n),d(p,p)),q),
+d(w,d(c,c)));d=m._helper.buildConicMatrix([z,f,y,t,b,d]);d=g.normalizeMax(d);a.matrix=u.withUsage(d,"Conic")};m.ConicBy2Foci1P={};m.ConicBy2Foci1P.kind="Cs";m.ConicBy2Foci1P.signature=["P","P","P"];m.ConicBy2Foci1P.updatePosition=function(a){var b=r.csnames[a.args[0]].homog,c=r.csnames[a.args[1]].homog,d=r.csnames[a.args[2]].homog,f=g.ii,h=g.jj,k=g.normalizeMax(g.cross(b,d)),n=g.normalizeMax(g.cross(c,d)),p=g.normalizeMax(g.cross(d,f));d=g.normalizeMax(g.cross(d,h));n=m._helper.coHarmonic(p,d,k,n);
+k=g.normalizeMax(n[0]);n=g.normalizeMax(n[1]);f=g.turnIntoCSList([f]);p=g.turnIntoCSList([h]);d=g.turnIntoCSList([b]);var q=g.turnIntoCSList([c]);h=m._helper.conicFromTwoDegenerates(f,p,d,q,k);h=g.normalizeMax(h);f=m._helper.conicFromTwoDegenerates(f,p,d,q,n);f=g.normalizeMax(f);h=g.normalizeMax(g.adjoint3(h));f=g.normalizeMax(g.adjoint3(f));"ellipsoid"!==m._helper.getConicType(h)&&(k=h,h=f,f=k);g.almostequals(b,c).value&&(b=l.real(3),f=g.zeromatrix(b,b));a.results=[h,f]};m.ConicBy2Pol1P={};m.ConicBy2Pol1P.kind=
+"C";m.ConicBy2Pol1P.signature=["P","L","P","L","P"];m.ConicBy2Pol1P.updatePosition=function(a){var b=r.csnames[a.args[0]].homog,c=r.csnames[a.args[1]].homog,d=r.csnames[a.args[2]].homog,f=r.csnames[a.args[3]].homog,h=r.csnames[a.args[4]].homog,k=g.scalproduct,m=g.scalmult,n=g.sub,p=g.productMM,q=l.realmult,t=g.transpose,w=g.turnIntoCSList,y=n(m(k(c,b),h),m(q(2,k(c,h)),b)),z=n(m(k(f,d),h),m(q(2,k(f,h)),d)),A=w([g.cross(b,h)]);h=w([g.cross(d,h)]);z=p(t(A),w([g.cross(b,z)]));w=p(t(h),w([g.cross(d,y)]));
+p=p(t(A),h);b=k(b,f);c=k(d,c);d=g.add(m(c,z),m(b,w));d=n(d,m(q(2,l.mult(b,c)),p));d=g.add(d,t(d));d=g.normalizeMax(d);d=u.withUsage(d,"Conic");a.matrix=d};m.ConicBy2Pol1L={};m.ConicBy2Pol1L.kind="C";m.ConicBy2Pol1L.signature=["P","L","P","L","L"];m.ConicBy2Pol1L.updatePosition=function(a){var b=r.csnames[a.args[0]].homog,c=r.csnames[a.args[1]].homog,d=r.csnames[a.args[2]].homog,f=r.csnames[a.args[3]].homog,h=r.csnames[a.args[4]].homog,k=g.scalproduct,m=g.scalmult,n=g.productMM,p=l.mult,q=g.transpose,
+t=g.turnIntoCSList,w=k(c,b),y=k(c,d),z=k(f,b),A=k(f,d),B=k(h,b);k=k(h,d);var C=t([g.sub(m(p(z,k),c),m(p(y,B),f))]);b=g.add(n(q(t([m(p(z,y),h)])),t([g.sub(g.add(m(l.sub(p(w,k),p(y,B)),f),m(l.sub(p(A,B),p(z,k)),c)),m(g.det3(c,f,h),g.cross(b,d)))])),n(q(C),C));b=g.add(b,q(b));b=g.normalizeMax(b);b=u.withUsage(b,"Conic");a.matrix=b};m._helper.conic1Pol3Inc=function(a,b,c,d,f){var e=g.scalproduct,h=g.scalmult,k=g.productMM,m=g.cross,n=l.realmult,x=l.mult,p=g.transpose,v=g.turnIntoCSList,q=g.det3,r=q(a,
+c,d),t=v([m(c,f)]),u=v([m(a,f)]),w=v([m(c,d)]),y=e(b,a),z=e(b,c);b=e(b,f);m=v([m(d,g.sub(h(y,f),h(n(2,b),a)))]);t=h(r,k(p(t),m));a=n(2,l.add(x(q(a,d,f),z),x(r,b)));a=l.sub(x(q(c,d,f),y),a);t=g.add(t,h(a,k(p(u),w)));t=g.add(t,p(t));return t=g.normalizeMax(t)};m.ConicBy1Pol3P={};m.ConicBy1Pol3P.kind="C";m.ConicBy1Pol3P.signature=["P","L","P","P","P"];m.ConicBy1Pol3P.updatePosition=function(a){var b=m._helper.conic1Pol3Inc(r.csnames[a.args[0]].homog,r.csnames[a.args[1]].homog,r.csnames[a.args[2]].homog,
+r.csnames[a.args[3]].homog,r.csnames[a.args[4]].homog);b=u.withUsage(b,"Conic");a.matrix=b};m.ConicBy1Pol3L={};m.ConicBy1Pol3L.kind="C";m.ConicBy1Pol3L.signature=["P","L","L","L","L"];m.ConicBy1Pol3L.updatePosition=function(a){var b=m._helper.conic1Pol3Inc(r.csnames[a.args[1]].homog,r.csnames[a.args[0]].homog,r.csnames[a.args[2]].homog,r.csnames[a.args[3]].homog,r.csnames[a.args[4]].homog);b=g.normalizeMax(g.adjoint3(b));b=u.withUsage(b,"Conic");a.matrix=b};m.ConicBy1Pol2P1L={};m.ConicBy1Pol2P1L.kind=
+"Cs";m.ConicBy1Pol2P1L.signature=["P","L","P","P","L"];m.ConicBy1Pol2P1L.updatePosition=function(a){var b=r.csnames[a.args[0]].homog,c=r.csnames[a.args[1]].homog,d=r.csnames[a.args[2]].homog,f=r.csnames[a.args[3]].homog,h=r.csnames[a.args[4]].homog,k=l.add,m=g.turnIntoCSList,n=g.cross,p=g.productMM,q=l.mult,t=l.realmult,u=g.scalmult,w=g.scalproduct,y=l.sub,z=g.transpose,A=w(c,b),B=w(c,d),C=w(c,f);c=w(h,b);var D=w(h,d);w=w(h,f);h=m([n(b,d)]);b=m([n(b,f)]);d=m([n(d,f)]);f=l.sqrt(q(q(D,w),q(y(q(A,D),
+t(2,q(c,B))),y(q(A,w),t(2,q(c,C))))));m=p(z(h),b);f=u(f,g.add(m,z(m)));k=u(y(q(A,q(D,w)),k(q(c,q(B,w)),q(c,q(D,C)))),m);t=g.add(g.sub(u(C,h),u(B,b)),u(t(.5,A),d));k=g.add(k,u(q(c,c),p(z(d),t)));k=g.add(k,z(k));p=g.normalizeMax(g.add(f,k));q=g.normalizeMax(g.sub(f,k));a.results=vc(p,q).value};m.ConicBy1Pol2P1L.stateSize=vc.stateSize;m.ConicBy1Pol1P2L={};m.ConicBy1Pol1P2L.kind="Cs";m.ConicBy1Pol1P2L.signature=["P","L","P","L","L"];m.ConicBy1Pol1P2L.updatePosition=function(a){var b=r.csnames[a.args[0]].homog,
+c=r.csnames[a.args[1]].homog,d=r.csnames[a.args[2]].homog,f=r.csnames[a.args[3]].homog,h=r.csnames[a.args[4]].homog,k=l.add,m=g.turnIntoCSList,n=g.cross,p=g.productMM,q=l.mult,t=l.realmult,u=g.scalmult,w=g.scalproduct,y=l.sub,z=g.transpose,A=w(c,b),B=w(c,d),C=w(f,b),D=w(f,d),E=w(h,b),F=w(h,d),G=q(A,A),H=q(A,B);w=q(B,B);var I=q(C,C),J=q(C,D),K=q(D,D),L=q(E,E),M=q(E,F),P=q(F,F),O=q(q(G,K),P);O=y(O,t(2,q(q(H,J),P)));O=y(O,t(2,q(q(H,K),M)));O=k(O,t(.5,q(q(w,I),P)));O=k(O,t(3,q(q(w,J),M)));O=k(O,t(.5,
+q(q(w,K),L)));M=q(q(A,D),F);M=y(M,q(q(B,C),F));M=y(M,q(q(B,D),E));M=q(M,q(w,E));P=y(q(A,D),t(2,q(B,C)));P=q(P,q(w,q(D,E)));O=p(z(m([c])),m([g.add(g.add(u(O,c),u(M,f)),u(P,h))]));M=m([f]);O=g.add(O,u(t(.5,q(q(w,w),L)),p(z(M),M)));O=g.add(O,u(w,p(z(m([h])),m([g.add(u(y(y(t(2,q(H,J)),q(G,K)),t(.5,q(w,I))),h),u(q(g.det3(c,f,h),y(q(A,D),q(B,C))),n(b,d)))]))));O=g.add(O,z(O));b=l.sqrt(q(q(D,F),q(y(q(A,D),t(2,q(B,C))),y(q(A,F),t(2,q(B,E))))));c=p(z(m([c])),m([g.sub(u(y(q(B,k(q(C,F),q(D,E))),q(A,q(D,F))),
+c),u(w,g.add(u(E,f),u(C,h))))]));c=g.add(c,u(q(A,w),p(z(m([f])),m([h]))));c=u(b,c);c=g.add(c,z(c));f=g.normalizeMax(g.add(O,c));h=g.normalizeMax(g.sub(O,c));a.results=vc(f,h).value};m.ConicBy1Pol1P2L.stateSize=vc.stateSize;m._helper.coHarmonic=function(a,b,c,d){var e=g.realVector([100*Math.random(),100*Math.random(),1]),f=g.det3(e,c,a),h=g.det3(e,c,b);c=g.det3(e,d,a);d=g.det3(e,d,b);d=l.sqrt(l.mult(d,h));f=l.sqrt(l.mult(c,f));a=u.mult(a,d);f=u.mult(b,f);b=g.add(a,f);a=g.sub(a,f);return[b,a]};m.ConicInSquare=
+{};m.ConicInSquare.kind="C";m.ConicInSquare.signature=["P","P","P","P"];m.ConicInSquare.updatePosition=function(a){var b=E.basismap(r.csnames[a.args[0]].homog,r.csnames[a.args[1]].homog,r.csnames[a.args[2]].homog,r.csnames[a.args[3]].homog),c=l.one;c=m._helper.buildConicMatrix([c,c,c,l.real(-3),c,c]);b=g.adjoint3(b);b=g.productMM(g.productMM(g.transpose(b),c),b);b=g.normalizeMax(b);a.matrix=u.withUsage(b,"Conic")};m.ConicBy5lines={};m.ConicBy5lines.kind="C";m.ConicBy5lines.signature=["L","L","L",
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+["Mt","C"];m.TrMoebiusC.signatureConstraints=function(a){return"Circle"===r.csnames[a.args[1]].matrix.usage};m.TrMoebiusC.updatePosition=function(a){var b=r.csnames[a.args[0]],c=r.csnames[a.args[1]].matrix,d=function(){var a=g.realVector([Math.random()-.5,Math.random()-.5,Math.random()-.5]);return g.normalizeMax(a)},f=m._helper.IntersectLC(d(),c);d=m._helper.IntersectLC(d(),c);c=f[1];d=d[1];f=m._helper.TrMoebiusP(f[0],b);c=m._helper.TrMoebiusP(c,b);b=m._helper.TrMoebiusP(d,b);a.matrix=g.normalizeMax(m._helper.ConicBy5(null,
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+n))])]);b=g.normalizeMax(b);a.matrix=b;a.dualMatrix=g.transpose(b)};m.TrReflectionS={};m.TrReflectionS.kind="Tr";m.TrReflectionS.signature=["S"];m.TrReflectionS.updatePosition=m.TrReflectionL.updatePosition;m.TrReflectionC={};m.TrReflectionC.kind="Mt";m.TrReflectionC.signature=["C"];m.TrReflectionC.signatureConstraints=function(a){return"Circle"===r.csnames[a.args[0]].matrix.usage};m.TrReflectionC.updatePosition=function(a){var b=r.csnames[a.args[0]].matrix,c=b.value[0].value[2],d=b.value[1].value[2],
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+m.TransformL.kind="L";m.TransformL.signature=["Tr","L"];m.TransformL.updatePosition=function(a){a.homog=g.normalizeMax(g.productMV(r.csnames[a.args[0]].dualMatrix,r.csnames[a.args[1]].homog));a.homog=u.withUsage(a.homog,"Line")};m.TransformS={};m.TransformS.kind="S";m.TransformS.signature=["Tr","S"];m.TransformS.updatePosition=function(a){var b=r.csnames[a.args[0]],c=r.csnames[a.args[1]];m.Segment.setSegmentPos(a,g.productMV(b.dualMatrix,c.homog),g.productMV(b.matrix,c.startpos),g.productMV(b.matrix,
+c.endpos))};m.TransformPolygon={};m.TransformPolygon.kind="Poly";m.TransformPolygon.signature=["Tr","Poly"];m.TransformPolygon.updatePosition=function(a){var b=r.csnames[a.args[0]].matrix;a.vertices=g.turnIntoCSList(r.csnames[a.args[1]].vertices.value.map(function(a){a=g.normalizeMax(g.productMV(b,a));return a=u.withUsage(a,"Point")}))};m.TrComposeTrTr={};m.TrComposeTrTr.kind="Tr";m.TrComposeTrTr.signature=["Tr","Tr"];m.TrComposeTrTr.initialize=function(a){a.isEuclidean=r.csnames[a.args[0]].isEuclidean*
+r.csnames[a.args[1]].isEuclidean};m.TrComposeTrTr.updatePosition=function(a){var b=r.csnames[a.args[0]],c=r.csnames[a.args[1]];a.matrix=g.normalizeMax(g.productMM(c.matrix,b.matrix));a.dualMatrix=g.normalizeMax(g.productMM(c.dualMatrix,b.dualMatrix))};m._helper.composeMtMt=function(a,b,c){function e(a,b,c,e){return h(n(a,b),n(c,e))}function d(a,b,c,d,f,g,k,l){return h(e(a,b,c,d),e(f,g,k,l))}function f(a,b,c,d,f,g,h,l){return k(e(a,b,c,d),e(f,g,h,l))}var h=l.add,k=l.sub,n=l.mult,p=c.anti?f:d,q=c.anti?
+d:f;p=g.normalizeMax(g.turnIntoCSList([q(b.ar,c.ar,b.cr,c.br,b.ai,c.ai,b.ci,c.bi),p(b.ar,c.ai,b.cr,c.bi,b.ai,c.ar,b.ci,c.br),q(b.br,c.ar,b.dr,c.br,b.bi,c.ai,b.di,c.bi),p(b.br,c.ai,b.dr,c.bi,b.bi,c.ar,b.di,c.br),q(b.ar,c.cr,b.cr,c.dr,b.ai,c.ci,b.ci,c.di),p(b.ar,c.ci,b.cr,c.di,b.ai,c.cr,b.ci,c.dr),q(b.br,c.cr,b.dr,c.dr,b.bi,c.ci,b.di,c.di),p(b.br,c.ci,b.dr,c.di,b.bi,c.cr,b.di,c.dr)])).value;a.moebius={anti:b.anti!==c.anti,ar:p[0],ai:p[1],br:p[2],bi:p[3],cr:p[4],ci:p[5],dr:p[6],di:p[7]};m._helper.moebiusPair(a)};
+m._helper.euc2moeb=function(a){var b=a.matrix.value;return{anti:0>a.isEuclidean,ar:b[0].value[0],ai:b[1].value[0],br:b[0].value[2],bi:b[1].value[2],cr:l.zero,ci:l.zero,dr:b[2].value[2],di:l.zero}};m.TrComposeMtMt={};m.TrComposeMtMt.kind="Mt";m.TrComposeMtMt.signature=["Mt","Mt"];m.TrComposeMtMt.updatePosition=function(a){m._helper.composeMtMt(a,r.csnames[a.args[0]].moebius,r.csnames[a.args[1]].moebius)};m.TrComposeTrMt={};m.TrComposeTrMt.kind="Mt";m.TrComposeTrMt.signature=["Tr","Mt"];m.TrComposeTrMt.signatureConstraints=
+function(a){return!!r.csnames[a.args[0]].isEuclidean};m.TrComposeTrMt.updatePosition=function(a){m._helper.composeMtMt(a,m._helper.euc2moeb(r.csnames[a.args[0]]),r.csnames[a.args[1]].moebius)};m.TrComposeMtTr={};m.TrComposeMtTr.kind="Mt";m.TrComposeMtTr.signature=["Mt","Tr"];m.TrComposeMtTr.signatureConstraints=function(a){return!!r.csnames[a.args[1]].isEuclidean};m.TrComposeMtTr.updatePosition=function(a){m._helper.composeMtMt(a,r.csnames[a.args[0]].moebius,m._helper.euc2moeb(r.csnames[a.args[1]]))};
+m._helper.pointReflection=function(a,b){return g.normalizeMax(g.sub(g.scalmult(l.realmult(2,b.value[2]),a),g.scalmult(a.value[2],b)))};m._helper.conicOtherIntersection=function(a,b,c){var e=g.productMV(a,c);a=g.scalproduct(c,e);e=g.scalproduct(b,e);e=l.realmult(-2,e);b=g.scalmult(a,b);c=g.scalmult(e,c);c=g.add(b,c);return c=g.normalizeMax(c)};m.Dist={};m.Dist.kind="V";m.Dist.signature=["P","P"];m.Dist.updatePosition=function(a){var b=r.csnames[a.args[1]].homog;a.value=g.abs(g.sub(g.normalizeZ(r.csnames[a.args[0]].homog),
+g.normalizeZ(b)))};m.Angle={};m.Angle.kind="V";m.Angle.signature=["L","L","P"];m.Angle.initialize=function(a){void 0===a.angle&&(a.angle=.5*Math.PI);wb(l._helper.input(a.angle))};m.Angle.updatePosition=function(a){var b=r.csnames[a.args[1]].homog,c=r.csnames[a.args[2]].homog,d=g.cross(r.csnames[a.args[0]].homog,g.linfty);b=g.cross(b,g.linfty);c=g.crossratio3(d,b,g.ii,g.jj,c);c=l.mult(l.complex(0,.5),l.log(c));d=(hc().value.real-c.value.real)/Math.PI;b=Math.round(d);!lc&&.01<Math.abs(b-d)&&uc();c=
+l.complex(b*Math.PI+c.value.real,c.value.imag);wb(c);a.value=u.withUsage(c,"Angle")};m.Angle.stateSize=2;m.Text={};m.Text.kind="Text";m.Text.signature="**";m.Text.isMovable=!0;m.Text.updatePosition=fb;m.Text.initialize=function(a){a.text=String(a.text);a.pos&&(a.homog=m._helper.initializePoint(a));a.dock&&(a.dock.offset=a.dock.offset&&2===a.dock.offset.length?g.realVector([+a.dock.offset[0],+a.dock.offset[1]]):g.realVector([0,0]))};m.Text.getParamForInput=function(a,b,c){return m.Free.getParamForInput(a,
+b,c)};m.Text.getParamFromState=function(a){return a.homog};m.Text.putParamToState=function(a,b){a.homog=b};m.Calculation={};m.Calculation.kind="Text";m.Calculation.signature="**";m.Calculation.isMovable=!0;m.Calculation.updatePosition=fb;m.Calculation.initialize=function(a){m.Text.initialize(a);a.calculation=lb(a.text)};m.Calculation.getText=function(a){return da(w(a.calculation))};m.Calculation.getParamForInput=m.Text.getParamForInput;m.Calculation.getParamFromState=m.Text.getParamFromState;m.Calculation.putParamToState=
+m.Text.putParamToState;m.Equation={};m.Equation.kind="Text";m.Equation.isMovable=!0;m.Equation.signature="**";m.Equation.updatePosition=fb;m.Equation.initialize=function(a){m.Text.initialize(a);a.calculation=lb(a.text)};m.Equation.getText=function(a){return a.text+" = "+da(w(a.calculation))};m.Equation.getParamForInput=m.Text.getParamForInput;m.Equation.getParamFromState=m.Text.getParamFromState;m.Equation.putParamToState=m.Text.putParamToState;m.Evaluate={};m.Evaluate.kind="Text";m.Evaluate.isMovable=
+!0;m.Evaluate.signature="**";m.Evaluate.updatePosition=fb;m.Evaluate.initialize=function(a){m.Text.initialize(a);a.calculation=lb(a.text)};m.Evaluate.getText=function(a){w(a.calculation);return a.text};m.Evaluate.getParamForInput=m.Text.getParamForInput;m.Evaluate.getParamFromState=m.Text.getParamFromState;m.Evaluate.putParamToState=m.Text.putParamToState;m.Plot={};m.Plot.kind="Text";m.Plot.isMovable=!0;m.Plot.signature="**";m.Plot.updatePosition=fb;m.Plot.initialize=function(a){m.Text.initialize(a);
+a.calculation=lb("plot(("+a.text+"))")};m.Plot.getText=function(a){w(a.calculation);return a.text};m.Plot.getParamForInput=m.Text.getParamForInput;m.Plot.getParamFromState=m.Text.getParamFromState;m.Plot.putParamToState=m.Text.putParamToState;m.Button={};m.Button.kind="Text";m.Button.signature="**";m.Button.isMovable=!0;m.Button.updatePosition=fb;m.Button.initialize=function(a){var b=document.createElement("button");Uc(a,"click",b)};m.Button.getParamForInput=m.Text.getParamForInput;m.Button.getParamFromState=
+m.Text.getParamFromState;m.Button.putParamToState=m.Text.putParamToState;m.Button.set_fillcolor=function(a,b){g._helper.isNumberVecN(b,3)&&(a.fillcolor=b.value.map(function(a){return a.value.real}),a.html.style.backgroundColor=y.makeColor(a.fillcolor,a.fillalpha))};m.Button.set_color=function(a,b){g._helper.isNumberVecN(b,3)&&(a.color=b.value.map(function(a){return a.value.real}),a.html.style.color=y.makeColor(a.color,a.alpha))};m.ToggleButton={};m.ToggleButton.kind="Text";m.ToggleButton.signature=
+"**";m.ToggleButton.isMovable=!0;m.ToggleButton.updatePosition=fb;m.ToggleButton.initialize=function(a){var b=void 0;void 0===b&&(b="CindyJSid");b+=++X;var c=document.createElement("input"),d=document.createElement("label");c.setAttribute("id",b);d.setAttribute("for",b);c.setAttribute("type","checkbox");a.pressed&&(c.checked=!0);a.checkbox=c;Uc(a,"change",c,d)};m.ToggleButton.get_text=function(a){return u.string(String(a.text))};m.ToggleButton.set_currenttext=function(a,b){a.html.value=a.text=da(b)};
+m.ToggleButton.getParamForInput=m.Text.getParamForInput;m.ToggleButton.getParamFromState=m.Text.getParamFromState;m.ToggleButton.putParamToState=m.Text.putParamToState;m.ToggleButton.set_fillcolor=m.Button.set_fillcolor;m.ToggleButton.set_color=m.Button.set_color;m.ToggleButton.set_text=m.ToggleButton.set_currenttext;m.ToggleButton.get_val=m.ToggleButton.get_text;m.ToggleButton.set_val=m.ToggleButton.set_currenttext;m.EditableText={};m.EditableText.kind="Text";m.EditableText.isMovable=!0;m.EditableText.signature=
+[];m.EditableText.updatePosition=fb;m.EditableText.initialize=function(a){var b=document.createElement("input");b.setAttribute("type","text");b.className="CindyJS-editabletext";$a(a.minwidth)&&(b.style.width=a.minwidth-3+"px");"string"===typeof a.text&&(b.value=a.text);b.addEventListener("keydown",function(c){13===c.keyCode&&(a.text=a.html.value,b.blur())});b.addEventListener("change",function(b){a.text=a.html.value});Uc(a,"change",b)};m.EditableText.getText=function(a){return!1};m.EditableText.getParamForInput=
+m.Text.getParamForInput;m.EditableText.getParamFromState=m.Text.getParamFromState;m.EditableText.putParamToState=m.Text.putParamToState;m.EditableText.set_fillcolor=m.Button.set_fillcolor;m.EditableText.set_color=m.Button.set_color;m.EditableText.get_currenttext=function(a){return u.string(String(a.html.value))};m.EditableText.get_text=m.ToggleButton.get_text;m.EditableText.set_currenttext=m.ToggleButton.set_currenttext;m.EditableText.set_text=m.EditableText.set_currenttext;m.EditableText.get_val=
+m.EditableText.get_text;m.EditableText.set_val=m.EditableText.set_currenttext;m._helper.initializePoint=function(a){var b=0,c=0,d=0;if(a.pos){if("list"===a.pos.ctype&&g.isNumberVector(a.pos))return a.pos;2===a.pos.length&&(b=a.pos[0],c=a.pos[1],d=1);3===a.pos.length&&(b=a.pos[0],c=a.pos[1],d=a.pos[2])}a=g.turnIntoCSList([l._helper.input(b),l._helper.input(c),l._helper.input(d)]);return a=g.normalizeMax(a)};m._helper.initializeLine=function(a){var b=0,c=0,d=0;if(a.pos){if("list"===a.pos.ctype&&g.isNumberVector(a.pos))return a.pos;
+3===a.pos.length&&(b=a.pos[0],c=a.pos[1],d=a.pos[2])}a=g.turnIntoCSList([l._helper.input(b),l._helper.input(c),l._helper.input(d)]);return a=g.normalizeMax(a)};m.Poly={};m.Poly.kind="Poly";m.Poly.signature="P*";m.Poly.updatePosition=function(a){a.vertices=g.turnIntoCSList(a.args.map(function(a){return r.csnames[a].homog}))};var la=null;m.IFS={};m.IFS.kind="IFS";m.IFS.signature="**";m.IFS.signatureConstraints=function(a){for(var b=0;b<a.args.length;++b){var c=r.csnames[a.args[b]].kind;if("Tr"!==c&&
+"Mt"!==c)return!1}return 0<a.args.length};m.IFS.initialize=function(a){if(la)la.dirty=!0;else if(a=Ia.getBaseDir(),!1!==a){la={dirty:!1,params:{generation:0}};var b=la.worker=new Worker(a+"ifs.js");b.onmessage=function(a){la.img&&"function"===typeof la.img.close&&la.img.close();if(!Fc){a=a.data;if(a.generation===la.params.generation){if(a.buffer){la.canvas||(la.canvas=document.createElement("canvas"),la.ctx=la.canvas.getContext("2d"));la.canvas.width=a.width;la.canvas.height=a.height;var c=new Uint8ClampedArray(a.buffer,
+a.imgPtr,a.width*a.height*4);c=new ImageData(c,a.width,a.height);la.ctx.putImageData(c,0,0);la.img=la.canvas}else la.img=a.img;k()}else la.img=null;a.buffer?b.postMessage({cmd:"next",buffer:a.buffer},[a.buffer]):b.postMessage({cmd:"next"})}};Db.push(b.terminate.bind(b))}};m.IFS.updatePosition=function(a){la.dirty=!0};m.IFS.updateParameters=function(){if(la.worker){var a={cmd:"init",generation:la.params.generation,width:Math.round(4*ma),height:Math.round(4*pa)};a.systems=r.ifs.map(function(a){var b=
+0,c,e=a.ifs||[],d=a.args.map(function(a,b){a=e[b]||{};return{prob:a.prob||1,color:a.color||[0,0,0]}});for(c=0;c<d.length;++c)b+=d[c].prob;c=g.realMatrix([[1,0,0],[0,1,0],[0,0,4]]);var f=g.productMM(C.toMat(),c);for(c=0;c<a.args.length;++c){var h=r.csnames[a.args[c]],k=h.kind,n=d[c];n.kind=k;n.prob/=b;if("Tr"===k)h=g.normalizeMax(g.productMM(g.adjoint3(f),g.productMM(h.matrix,f))),g._helper.isAlmostReal(h)?n.mat=h.value.map(function(a){return a.value.map(function(a){return a.value.real})}):n.kind=
+"cplx";else if("Mt"===k){k=C.drawingstate.matrix;k={anti:0<k.det,ar:l.real(k.a),ai:l.real(k.c),br:l.real(k.tx),bi:l.real(-k.ty),cr:l.zero,ci:l.zero,dr:l.real(.25),di:l.zero};var p={};m._helper.composeMtMt(p,h.moebius,k);k=m._helper.inverseMoebius(k);m._helper.composeMtMt(p,k,p.moebius);k=p.moebius;k=g.turnIntoCSList([k.ar,k.ai,k.br,k.bi,k.cr,k.ci,k.dr,k.di]);g._helper.isAlmostReal(k)?(k=k.value,n.moebius={ar:k[0].value.real,ai:k[1].value.real,br:k[2].value.real,bi:k[3].value.real,cr:k[4].value.real,
+ci:k[5].value.real,dr:k[6].value.real,di:k[7].value.real,sign:h.moebius.anti?-1:1}):n.kind="cplx"}}return{trafos:d}});u.deeplyEqual(a,la.params)||(++a.generation,la.img=null,la.params=a,la.mat=C.drawingstate.matrix,la.worker.postMessage(a))}};m.IFS.probSetter=function(a,b,c){"number"===c.ctype&&(b.ifs[a].prob=c.value.real,la.dirty=!0)};(function(){for(var a=0;10>a;++a)m.IFS["set_prob"+a]=m.IFS.probSetter.bind(null,a)})();m._helper.snapPointToLine=function(a,b){if(l._helper.isAlmostZero(a.value[2]))return a;
+var c=m._helper.projectPointToLine(a,b);c=g.normalizeZ(c);var e=c.value[0].value.real;c=c.value[1].value.real;var d=Math.round(e/Va)*Va,f=Math.round(c/Va)*Va,h=g.realVector([d,f,1]);Math.abs(d-e)<Tb&&Math.abs(f-c)<Tb&&l._helper.isAlmostZero(g.scalproduct(b,h))&&(a=m._helper.projectPointToLine(h,b));return a};var ed={CircleByRadius:"CircleMr",IntersectionCircleCircle:"IntersectCirCir",IntersectionConicConic:"IntersectConicConic",FreePoint:"Free",Orthogonal:"Perp",Parallel:"Para",Pole:"PolarOfLine",
+Polar:"PolarOfPoint",Arc:"ArcBy3",EuclideanMid:"Mid",AngularBisector:"AngleBisector",TransformConic:"TransformC",TransformSegment:"TransformS",TrMoebiusSegment:"TrMoebiusS",ReflectCC:"TrMoebiusC",ReflectCL:"TrMoebiusL",ReflectCP:"TrMoebiusP",ReflectCArc:"TrMoebiusArc",ReflectCS:"TrMoebiusS",TrMoebiusCircle:"TrMoebiusC"},Ee={CircleMFixedr:function(a){a.pinned=!0;a.type="CircleMr";return[a]},CircleByFixedRadius:function(a){a.pinned=!0;a.type="CircleMr";return[a]},IntersectionConicLine:function(a){a.args=
+[a.args[1],a.args[0]];a.type="IntersectLC";return[a]},angleBisector:function(a){var b={name:a.name+"_Intersection",type:"Meet",args:a.args,visible:!1};a.type="AngleBisector";a.args=[a.args[0],a.args[1],b.name];return[b,a]},Transform:function(a){var b=r.csnames[a.args[1]];b={Tr:"Transform",Mt:"TrMoebius"}[r.csnames[a.args[0]].kind]+(b.isArc?"Arc":b.kind);if(m.hasOwnProperty(b))return a.type=b,[a];console.log(b+" not implemented yet");return[]},TrReflection:function(a){var b="TrReflection"+r.csnames[a.args[0]].kind;
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+b){a.vel=[0,0,0];a.pos=[0,0,0,0];a.el=b;"undefined"===typeof a.mass&&(a.mass=10);"undefined"===typeof a.friction&&(a.friction=0);a.charge=0;a.x=0;a.y=0;a.z=0},resetForces:function(a){},getBlock:!1,setToTimestep:function(a,b,c){},initRK:function(a,b){b=E.extractPoint(a.el.homog);a.x=b.x;a.y=b.y;a.z=0},setVelocity:function(a,b,c,d){},move:function(a){},proceedMotion:function(a,b,c,d){},calculateDelta:function(a,b){},calculateForces:function(a){for(var b=a.x,c=a.y,d=a.z,f=0;f<Ca.length;f++){var g=Ca[f],
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+resetForces:function(a){},getBlock:!1,setToTimestep:function(a,b,c){},initRK:function(a,b){},setVelocity:function(a,b,c,d){},move:function(a){},proceedMotion:function(a,b,c,d){},calculateDelta:function(a,b){},calculateForces:function(a){var b=E.extractPoint(a.ma.homog),c=E.extractPoint(a.mb.homog),d=(c.x-b.x)*a.strength;a=(c.y-b.y)*a.strength;for(b=0;b<Ca.length;b++)c=Ca[b],c.behavior.fx+=d*c.behavior.mass,c.behavior.fy+=a*c.behavior.mass,c.behavior.fz+=0*c.behavior.mass},savePos:function(a,b){},
+restorePos:function(a,b){},sqDist:function(a,b,c){return 0},kineticEnergy:function(a){},storePosition:function(a){},recallPosition:function(a){},doCollisions:function(a){}},Spring:{reset:function(a,b){a.el=b;"undefined"===typeof a.strength&&(a.strength=1);"undefined"===typeof a.amplitude&&(a.amplitude=0);"undefined"===typeof a.phase&&(a.phase=0);"undefined"===typeof a.speed&&(a.speed=1);"undefined"===typeof a.l0&&(a.l0=0);"undefined"===typeof a.stype&&(a.stype=1);"undefined"===typeof a.readOnInit&&
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+E.extractPoint(a.ma.homog);var c=b.x;var d=b.y}else c=a.ma.behavior.x,d=a.ma.behavior.y;if(!a.mb.behavior||ya&&ja.down&&a.mb===ya.mover){var f=E.extractPoint(a.mb.homog);b=f.x;f=f.y}else b=a.mb.behavior.x,f=a.mb.behavior.y;var g=Math.sqrt((c-b)*(c-b)+(d-f)*(d-f)),h=a.l0;a.ldiff=g-h;var k=a.stype;1===k&&(h=0);var l=0;if(2===k||3===k)l=a.ma.behavior.mass*a.mb.behavior.mass*a.strength;2===k&&(l=-l);if(0===g||0!==k&&1!==k)if(a.ma.behavior&&a.mb.behavior&&0!==g){if(g*=g*g,2===k||3===k){var m=(c-b)*l/g;
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+b,c){},initRK:function(a,b){a.deltat=b},setVelocity:function(a,b,c,d){},move:function(a){},proceedMotion:function(a,b,c,d){},calculateForces:function(a){},calculateDelta:function(a,b){},savePos:function(a,b){},restorePos:function(a,b){},sqDist:function(a,b,c){return 0},kineticEnergy:function(a){},storePosition:function(a){},recallPosition:function(a){},doCollisions:function(a){var b=E.extractPoint(a.ma.homog),c=E.extractPoint(a.mb.homog),d=b.x;b=b.y;var f=c.x;c=c.y;var g=a.x1o,h=a.y1o,k=a.x2o,m=a.y2o,
+n=Math.sqrt((d-f)*(d-f)+(b-c)*(b-c)),p=(d-f)/n;n=(b-c)/n;for(var q=0;q<Ca.length;q++){var r=Ca[q],t=r.behavior.xo,u=r.behavior.yo,w=r.behavior.x,y=r.behavior.y,z=l.mult(l.complex(g,h),l.complex(f,c)),A=l.mult(l.complex(k,m),l.complex(d,b));z=l.sub(z,A);A=l.mult(l.complex(t,u),l.complex(d,b));z=l.add(z,A);A=l.mult(l.complex(t,u),l.complex(f,c));z=l.sub(z,A);A=l.sub(l.complex(g,h),l.complex(k,m));z=l.div(z,A);0>W.det(d,b,f,c,w,y)*W.det(d,b,f,c,z.value.real,z.value.imag)&&0>W.det(d,b,w,y,z.value.real,
+z.value.imag)*W.det(f,c,w,y,z.value.real,z.value.imag)&&(u=r.behavior.mvx+a.deltat*(-z.value.real+r.behavior.xo),w=r.behavior.mvy+a.deltat*(-z.value.imag+r.behavior.yo),t=p*u+n*w,u=n*u-p*w,r.behavior.x=z.value.real,r.behavior.y=z.value.imag,r.behavior.vx=p*t*(1-a.xdamp),r.behavior.vy=n*t*(1-a.xdamp),r.behavior.vx+=-n*u*(1-a.ydamp),r.behavior.vy+=p*u*(1-a.ydamp))}a.x1o=d;a.y1o=b;a.x2o=f;a.y2o=c}},Environment:{init:function(a){"undefined"===typeof a.gravity&&(a.gravity=0);"undefined"===typeof a.friction&&
+(a.friction=0);"undefined"===typeof a.springstrength&&(a.springstrength=1);"undefined"!==typeof a.accuracy&&(zc=a.accuracy);"undefined"!==typeof a.deltat&&O(a.deltat/.6);"undefined"===typeof a.charges&&(a.charges=!1);"undefined"===typeof a.balls&&(a.balls=!1);"undefined"===typeof a.newton&&(a.newton=!1);"undefined"===typeof a.ballInteractionBoosting&&(a.ballInteractionBoosting=1);W.env=a;a.errorbound=.001;a.lowestdeltat=1E-7;a.slowdownfactor=2},reset:function(a){},resetForces:function(a){},getBlock:!1,
+setToTimestep:function(a,b,c){},initRK:function(a,b){},setVelocity:function(a,b,c,d){},move:function(a){},proceedMotion:function(a,b,c,d){},calculateForces:function(a){var b,c;if(a.newton)for(b=0;b<Ca.length-1;b++){var d=Ca[b];var f=d.behavior.x;var g=d.behavior.y;for(c=b+1;c<Ca.length;c++){var h=Ca[c];var k=h.behavior.x;var l=h.behavior.y;var m=Math.sqrt((f-k)*(f-k)+(g-l)*(g-l));k=(f-k)*d.behavior.mass*h.behavior.mass/(m*m*m);l=(g-l)*d.behavior.mass*h.behavior.mass/(m*m*m);d.behavior.fx-=k;d.behavior.fy-=
+l;h.behavior.fx+=k;h.behavior.fy+=l}}if(a.charges)for(b=0;b<Ca.length-1;b++)for(d=Ca[b],f=d.behavior.x,g=d.behavior.y,c=b+1;c<Ca.length;c++)h=Ca[c],k=h.behavior.x,l=h.behavior.y,m=Math.sqrt((f-k)*(f-k)+(g-l)*(g-l)),k=(f-k)*d.behavior.charge*h.behavior.charge/(m*m*m),l=(g-l)*d.behavior.charge*h.behavior.charge/(m*m*m),d.behavior.fx+=k,d.behavior.fy+=l,h.behavior.fx-=k,h.behavior.fy-=l;if(a.balls)for(b=0;b<Ca.length-1;b++)if(d=Ca[b],0!==d.behavior.radius)for(f=d.behavior.x,g=d.behavior.y,c=b+1;c<Ca.length;c++)if(h=
+Ca[c],0!==h.behavior.radius){k=h.behavior.x;l=h.behavior.y;var n=d.behavior.radius+h.behavior.radius;m=Math.sqrt((f-k)*(f-k)+(g-l)*(g-l));0===a.ballInteractionBoosting?(k=(f-k)/(m*m*m)*(m>n?0:(m-n)*(m-n)),l=(g-l)/(m*m*m)*(m>n?0:(m-n)*(m-n))):1===a.ballInteractionBoosting?(k=(f-k)/(m*m*m*m)*(m>n?0:(m-n)*(m-n)),l=(g-l)/(m*m*m*m)*(m>n?0:(m-n)*(m-n))):(k=(f-k)/(m*m*m*m*m)*(m>n?0:(m-n)*(m-n)),l=(g-l)/(m*m*m*m*m)*(m>n?0:(m-n)*(m-n)));d.behavior.fx+=k;d.behavior.fy+=l;h.behavior.fx-=k;h.behavior.fy-=l}for(b=
+0;b<Ca.length;b++)d=Ca[b],d.behavior.fx+=0,d.behavior.fy+=-a.gravity*d.behavior.mass,d.behavior.fz+=0},calculateDelta:function(a,b){},savePos:function(a,b){},restorePos:function(a,b){},sqDist:function(a,b,c){return 0},kineticEnergy:function(a){},storePosition:function(a){},recallPosition:function(a){},doCollisions:function(a){}}};return La};return n}(),createCindy=CindyJS;
+"undefined"!==typeof process&&"undefined"!==typeof module&&"undefined"!==typeof module.exports&&"undefined"===typeof window&&(module.exports=CindyJS);
+//# sourceMappingURL=Cindy.js.map
+
diff --git a/public/build/CindyGL.js b/public/build/CindyGL.js
new file mode 100644
index 00000000..84e25c99
--- /dev/null
+++ b/public/build/CindyGL.js
@@ -0,0 +1,140 @@
+(function(){
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+var ka={addc:"vec2 addc(vec2 a,vec2 b){\nreturn a+b;\n}\n",addpoints:"vec2 addpoints(vec3 a,vec3 b){\nreturn dehomogenize(a) +dehomogenize(b);\n}\n",arccosc:"vec2 arccosc(vec2 a){\nvec2 t2=multc(a,negc(a));\nvec2 tmp=sqrtc(addc(vec2(1.0,0.0),t2));\nvec2 tmp1=addc(multc(a,vec2(0.0,1.0)),tmp);\nvec2 erg=addc(multc(logc(tmp1),vec2(0.0,1.0)),vec2(pi*0.5,0.0));\nreturn erg;\n}\n",arccosf:"vec2 arccosf(float z){\nif(abs(z)<=1.)return vec2(acos(z),0.);\nelse if(z>1.)return vec2(0,log(z+sqrt(z*z-1.)));\nelse return vec2(pi, -log(-z+sqrt(z*z-1.)));\n}\n",
+arcsinc:"vec2 arcsinc(vec2 a){\nvec2 t2=multc(a,negc(a));\nvec2 tmp=sqrtc(addc(vec2(1.0,0.0),t2));\nvec2 tmp1=addc(multc(a,vec2(0.0,1.0)),tmp);\nvec2 erg=multc(logc(tmp1),vec2(0.0,-1.0));\nreturn erg;\n}\n",arcsinf:"vec2 arcsinf(float z){\nif(abs(z)<=1.)return vec2(asin(z),0.);\nelse if(z>1.)return vec2(pi*.5, -log(z+sqrt(z*z-1.)));\nelse return vec2(-pi*.5,log(-z+sqrt(z*z-1.)));\n}\n",arctan2c:"\n\n\n\nvec2 arctan2c(vec2 x,vec2 y){\nvec2 r=logc(divc(x+vec2(-y.y,y.x),sqrtc(multc(x,x)+multc(y,y))));\nreturn vec2(r.y, -r.x);\n}\n",
+arctan2cvec2:"vec2 arctan2cvec2(cvec2 v){\nreturn arctan2c(v.real,v.imag);\n}\n",arctan2vec2:"float arctan2vec2(vec2 v){\nreturn atan(v.y,v.x);\n}\n",arctanc:"vec2 arctanc(vec2 a){\nvec2 t1=logc(addc(multc(a,vec2(0.0,-1.0)),vec2(1.0,0.0)));\nvec2 t2=logc(addc(multc(a,vec2(0.0,1.0)),vec2(1.0,0.0)));\nvec2 erg=multc(subc(t1,t2),vec2(0.0,0.5));\nreturn erg;\n}\n",blue:"vec3 blue(float f)\n{\nreturn vec3(0.,0.,clamp(f,0.,1.));\n}\n",cimag:"float imagc(vec2 a){\nreturn a.y;\n}\n",conjugate:"vec2 conjugate(vec2 a){\nreturn vec2(a.x, -a.y);\n}\n",
+copytexture_f:"#ifdef GL_ES\nprecision highp float;\n#endif\n\nuniform sampler2D sampler;\nvarying vec2 cgl_pixel;\n\nvoid main(void){\ngl_FragColor=texture2D(sampler,cgl_pixel);\n}\n",copytexture_v:"attribute vec3 aPos;\nattribute vec2 aTexCoord;\nvarying vec2 cgl_pixel;\n\nvoid main(void){\ngl_Position=vec4(aPos,1.);\ncgl_pixel=aTexCoord;\n}\n",cosc:"vec2 cosc(vec2 a){\n\nfloat n=exp(a.y);\nfloat imag1=n*sin(-a.x);\nfloat real1=n*cos(-a.x);\nn=exp(-a.y);\nfloat imag2=n*sin(a.x);\nfloat real2=n*cos(a.x);\nfloat i= (imag1+imag2) /2.0;\nfloat r= (real1+real2) /2.0;\n\nreturn vec2(r,i);\n}\n",
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+hue:"vec3 hue(float a){\nreturn hsv2rgb(vec3(a,1.,1.));\n}\n",imagc:"float imagc(vec2 a){\nreturn a.y;\n}\n",invc:"vec2 invc(vec2 a){\nfloat n=a.x*a.x+a.y*a.y;\nreturn vec2(a.x/n,-a.y/n);\n}\n",logc:"vec2 logc(vec2 a){\nfloat re=a.x;\nfloat im=a.y;\nfloat s=sqrt(re*re+im*im);\nfloat i=im;\nfloat imag=atan(im,re);\nif(i<0.0){\nimag+= (2.0*pi);\n}\nif(i==0.0&&re<0.0){\nimag=pi;\n}\nif(imag>pi){\nimag-= (2.0*pi);\n};\nfloat real=log(s);\n\nreturn vec2(real,imag);\n}\n",logr:"vec2 logr(float a){\nif(a>=0.)return vec2(log(a),0);\nelse return vec2(log(-a),pi);\n}\n",
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+random:"uniform float rnd_;\n\nfloat last_rnd= .1231;\nfloat random(){\nfloat a=fract(132422.21*sin(dot(plain_pixel,343433.671228*vec2(.176574+last_rnd, .1131+rnd_))));\nfloat b=fract(last_rnd*2321.2312*sin(dot(plain_pixel+vec2(rnd_,last_rnd),plain_pixel) *43758.5453));\nlast_rnd=fract(rnd_ +last_rnd+a+b);\nreturn last_rnd;\n}\n",randomnormal:"float randomnormal(){\nreturn sqrt(-2. *log(random())) *cos(6.283185307179586*random());\n}\n",realc:"float realc(vec2 a){\nreturn a.x;\n}\n",red:"vec3 red(float f)\n{\nreturn vec3(clamp(f,0.,1.),0.,0.);\n}\n",
+rgb2hsv:"vec3 rgb2hsv(vec3 c)\n{\nvec4 K=vec4(0.0, -1.0/3.0,2.0/3.0, -1.0);\nvec4 p=mix(vec4(c.bg,K.wz),vec4(c.gb,K.xy),step(c.b,c.g));\nvec4 q=mix(vec4(p.xyw,c.r),vec4(c.r,p.yzx),step(p.x,c.r));\n\nfloat d=q.x-min(q.w,q.y);\nfloat e=1.0e-10;\nreturn vec3(abs(q.z+ (q.w-q.y) / (6.0*d+e)),d/ (q.x+e),q.x);\n}\n",sinc:"\n\nvec2 sinc(vec2 a){\n\nfloat n=exp(a.y);\nfloat imag1=n*sin(-a.x);\nfloat real1=n*cos(-a.x);\nn=exp(-a.y);\nfloat imag2=n*sin(a.x);\nfloat real2=n*cos(a.x);\nfloat r= -(imag1-imag2) /2.0;\nfloat i= (real1-real2) /2.0;\n\nreturn vec2(r,i);\n}\n",
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+function lc(a){var b=a.B,c=a.C;b={interpolate:b.hasOwnProperty("interpolate")?c.evaluateAndVal(b.interpolate).value:!0,mipmap:b.hasOwnProperty("mipmap")?c.evaluateAndVal(b.mipmap).value:!1,repeat:b.hasOwnProperty("repeat")?c.evaluateAndVal(b.repeat).value:!1};!a.j||a.j.mipmap==b.mipmap&&a.j.repeat==b.repeat||(console.log("enfore recompilation because texture modifiers changed."),pa++);a.j=b}
+function ab(a){var b=a.C.evaluateAndVal(a.U).value,c="string"===typeof b?a.C.getImage(b,!0):b;if(null==c)return console.error("Could not find image "+b+"."),t;lc(a);return Ma(c,a.C,a.j)}function mc(a,b,c){c.N.hasOwnProperty(a)||(c.N[a]=new kc(a,c.D[a].U,b,c.C));return a}function bc(a,b,c){return["_imagergba",mc(a[2],b,c),"(",a[0],",",a[1],",",a[3],")"].join("")}function $b(a,b,c){return["(_imagergba",mc(a[2],b,c),"(",a[0],",",a[1],",",a[3],").rgb)"].join("")}
+function ac(a,b,c){c.add("uniforms","corners",function(){return"uniform vec2 _lowerleft, _lowerright;"});return["_imagergba",mc(a[0],b,c),"(_lowerleft, _lowerright, ",a[1],")"].join("")}function Zb(a,b,c){c.add("uniforms","corners",function(){return"uniform vec2 _lowerleft, _lowerright;"});return["(_imagergba",mc(a[0],b,c),"(_lowerleft, _lowerright, ",a[1],").rgb)"].join("")};function nc(a){var b=void 0===b?null:b;return"list"!==a.ctype?(console.log("argument is not a list"),b):a.value}function db(a){var b=void 0===b?[.5,.5,.5]:b;if("number"===a.ctype){var c=oc(a);if(!isNaN(c))return[c,c,c]}a=nc(a);return null===a?b:3!=a.length?(console.log("Not an RGB color vector"),b):a.map(function(a){return oc(a)})}
+function cb(a){var b=void 0===b?Number.NaN:b;if("number"!==a.ctype)return console.log("argument is not a number"),b;b=a.value;a=b.real;b=b.imag;0!==b&&console.log("complex number is not real");b=Math.round(a);b!==a&&console.log("number is not an integer");return b}
+function oc(a){var b=void 0===b?Number.NaN:b;b=void 0===b?Number.NaN:b;"number"!==a.ctype?(console.log("argument is not a number"),a=b):(a=a.value,b=a.real,0!==a.imag&&console.log("complex number is not real"),a=b);return 0>a?0:1<a?1:a};function ta(a){this.message=a}ta.prototype.toString=function(){return this.message};
+function Qa(a,b){var c=r;this.handle=c.createProgram();c.j&&(a="#version 300 es\n"+a.replace(/attribute/g,"in").replace(/varying/g,"out"),b="#version 300 es\n"+b.replace(/varying/g,"in").replace(/gl_FragColor/g,"FragColor").replace(/texture2D/g,"texture").replace(/precision highp float;/g,"precision highp float;\n#define webgl2 true\nout vec4 FragColor;"));this.V=pc(this,c,c.VERTEX_SHADER,a);pc(this,c,c.FRAGMENT_SHADER,b);a=this.handle;c.linkProgram(a);if(!c.getProgramParameter(a,c.LINK_STATUS))throw new ta("Error linking shader:\n"+
+c.getProgramInfoLog(a));c.validateProgram(a);if(!c.getProgramParameter(a,c.VALIDATE_STATUS))throw new ta("Error validating shader:\n"+c.getProgramInfoLog(a));var e=this.handle,f,h,k={},l;b=c.getProgramParameter(e,c.ACTIVE_UNIFORMS);for(a=0;a<b;++a){var q=c.getActiveUniform(e,a);if(null!==q&&(f=q.name.replace(/\]/g,""))){for(l=k;null!==(h=/[.\[]/.exec(f));){var u=f.substr(0,h.index);l.hasOwnProperty(u)?l=l[u]:"."===h[0]?l=l[u]={}:l=l[u]=[];f=f.substr(h.index+1)}if(1<q.size){h=q.size;var p=Array(h);
+for(u=0;u<h;++u){var v=q.name+"["+u+"]";v=qc(this,c,v,q);p[u]=v}l[f]=p}else v=qc(this,c,q.name,q),l[f]=v}}this.uniform=k}function pc(a,b,c,e){c=b.createShader(c);b.shaderSource(c,e);b.compileShader(c);if(!b.getShaderParameter(c,b.COMPILE_STATUS))throw console.warn(e.split("\n")),new ta("Error compiling shader:\n"+b.getShaderInfoLog(c));b.attachShader(a.handle,c);return c}Qa.prototype.use=function(a){a.useProgram(this.handle);return this};
+function qc(a,b,c,e){a=b.getUniformLocation(a.handle,c);switch(e.type){case b.FLOAT:return b.uniform1fv.bind(b,a);case b.FLOAT_VEC2:return b.uniform2fv.bind(b,a);case b.FLOAT_VEC3:return b.uniform3fv.bind(b,a);case b.FLOAT_VEC4:return b.uniform4fv.bind(b,a);case b.BOOL:case b.INT:case b.SAMPLER_2D:case b.SAMPLER_CUBE:return b.uniform1iv.bind(b,a);case b.BOOL_VEC2:case b.INT_VEC2:return b.uniform2iv.bind(b,a);case b.BOOL_VEC3:case b.INT_VEC3:return b.uniform3iv.bind(b,a);case b.BOOL_VEC4:case b.INT_VEC4:return b.uniform4iv.bind(b,
+a);case b.FLOAT_MAT2:return b.uniformMatrix2fv.bind(b,a,!1);case b.FLOAT_MAT3:return b.uniformMatrix3fv.bind(b,a,!1);case b.FLOAT_MAT4:return b.uniformMatrix4fv.bind(b,a,!1);default:throw new ta("Unknown data type for uniform "+c);}};
+}).call(this);//# sourceMappingURL=CindyGL.js.map
+
+
diff --git a/public/build/LICENSE_cindyjs b/public/build/LICENSE_cindyjs
new file mode 100644
index 00000000..66b0c460
--- /dev/null
+++ b/public/build/LICENSE_cindyjs
@@ -0,0 +1,201 @@
+                              Apache License
+                        Version 2.0, January 2004
+                     http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+   "License" shall mean the terms and conditions for use, reproduction,
+   and distribution as defined by Sections 1 through 9 of this document.
+
+   "Licensor" shall mean the copyright owner or entity authorized by
+   the copyright owner that is granting the License.
+
+   "Legal Entity" shall mean the union of the acting entity and all
+   other entities that control, are controlled by, or are under common
+   control with that entity. For the purposes of this definition,
+   "control" means (i) the power, direct or indirect, to cause the
+   direction or management of such entity, whether by contract or
+   otherwise, or (ii) ownership of fifty percent (50%) or more of the
+   outstanding shares, or (iii) beneficial ownership of such entity.
+
+   "You" (or "Your") shall mean an individual or Legal Entity
+   exercising permissions granted by this License.
+
+   "Source" form shall mean the preferred form for making modifications,
+   including but not limited to software source code, documentation
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+
+   "Object" form shall mean any form resulting from mechanical
+   transformation or translation of a Source form, including but
+   not limited to compiled object code, generated documentation,
+   and conversions to other media types.
+
+   "Work" shall mean the work of authorship, whether in Source or
+   Object form, made available under the License, as indicated by a
+   copyright notice that is included in or attached to the work
+   (an example is provided in the Appendix below).
+
+   "Derivative Works" shall mean any work, whether in Source or Object
+   form, that is based on (or derived from) the Work and for which the
+   editorial revisions, annotations, elaborations, or other modifications
+   represent, as a whole, an original work of authorship. For the purposes
+   of this License, Derivative Works shall not include works that remain
+   separable from, or merely link (or bind by name) to the interfaces of,
+   the Work and Derivative Works thereof.
+
+   "Contribution" shall mean any work of authorship, including
+   the original version of the Work and any modifications or additions
+   to that Work or Derivative Works thereof, that is intentionally
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+   means any form of electronic, verbal, or written communication sent
+   to the Licensor or its representatives, including but not limited to
+   communication on electronic mailing lists, source code control systems,
+   and issue tracking systems that are managed by, or on behalf of, the
+   Licensor for the purpose of discussing and improving the Work, but
+   excluding communication that is conspicuously marked or otherwise
+   designated in writing by the copyright owner as "Not a Contribution."
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+   "Contributor" shall mean Licensor and any individual or Legal Entity
+   on behalf of whom a Contribution has been received by Licensor and
+   subsequently incorporated within the Work.
+
+2. Grant of Copyright License. Subject to the terms and conditions of
+   this License, each Contributor hereby grants to You a perpetual,
+   worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+   copyright license to reproduce, prepare Derivative Works of,
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+   Work and such Derivative Works in Source or Object form.
+
+3. Grant of Patent License. Subject to the terms and conditions of
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+   worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+   (except as stated in this section) patent license to make, have made,
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+
+4. Redistribution. You may reproduce and distribute copies of the
+   Work or Derivative Works thereof in any medium, with or without
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+   meet the following conditions:
+
+   (a) You must give any other recipients of the Work or
+       Derivative Works a copy of this License; and
+
+   (b) You must cause any modified files to carry prominent notices
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+
+   (c) You must retain, in the Source form of any Derivative Works
+       that You distribute, all copyright, patent, trademark, and
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+       excluding those notices that do not pertain to any part of
+       the Derivative Works; and
+
+   (d) If the Work includes a "NOTICE" text file as part of its
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+       include a readable copy of the attribution notices contained
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+       pertain to any part of the Derivative Works, in at least one
+       of the following places: within a NOTICE text file distributed
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+       wherever such third-party notices normally appear. The contents
+       of the NOTICE file are for informational purposes only and
+       do not modify the License. You may add Your own attribution
+       notices within Derivative Works that You distribute, alongside
+       or as an addendum to the NOTICE text from the Work, provided
+       that such additional attribution notices cannot be construed
+       as modifying the License.
+
+   You may add Your own copyright statement to Your modifications and
+   may provide additional or different license terms and conditions
+   for use, reproduction, or distribution of Your modifications, or
+   for any such Derivative Works as a whole, provided Your use,
+   reproduction, and distribution of the Work otherwise complies with
+   the conditions stated in this License.
+
+5. Submission of Contributions. Unless You explicitly state otherwise,
+   any Contribution intentionally submitted for inclusion in the Work
+   by You to the Licensor shall be under the terms and conditions of
+   this License, without any additional terms or conditions.
+   Notwithstanding the above, nothing herein shall supersede or modify
+   the terms of any separate license agreement you may have executed
+   with Licensor regarding such Contributions.
+
+6. Trademarks. This License does not grant permission to use the trade
+   names, trademarks, service marks, or product names of the Licensor,
+   except as required for reasonable and customary use in describing the
+   origin of the Work and reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty. Unless required by applicable law or
+   agreed to in writing, Licensor provides the Work (and each
+   Contributor provides its Contributions) on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+   implied, including, without limitation, any warranties or conditions
+   of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+   PARTICULAR PURPOSE. You are solely responsible for determining the
+   appropriateness of using or redistributing the Work and assume any
+   risks associated with Your exercise of permissions under this License.
+
+8. Limitation of Liability. In no event and under no legal theory,
+   whether in tort (including negligence), contract, or otherwise,
+   unless required by applicable law (such as deliberate and grossly
+   negligent acts) or agreed to in writing, shall any Contributor be
+   liable to You for damages, including any direct, indirect, special,
+   incidental, or consequential damages of any character arising as a
+   result of this License or out of the use or inability to use the
+   Work (including but not limited to damages for loss of goodwill,
+   work stoppage, computer failure or malfunction, or any and all
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+   has been advised of the possibility of such damages.
+
+9. Accepting Warranty or Additional Liability. While redistributing
+   the Work or Derivative Works thereof, You may choose to offer,
+   and charge a fee for, acceptance of support, warranty, indemnity,
+   or other liability obligations and/or rights consistent with this
+   License. However, in accepting such obligations, You may act only
+   on Your own behalf and on Your sole responsibility, not on behalf
+   of any other Contributor, and only if You agree to indemnify,
+   defend, and hold each Contributor harmless for any liability
+   incurred by, or claims asserted against, such Contributor by reason
+   of your accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS
+
+APPENDIX: How to apply the Apache License to your work.
+
+   To apply the Apache License to your work, attach the following
+   boilerplate notice, with the fields enclosed by brackets "{}"
+   replaced with your own identifying information. (Don't include
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+   comment syntax for the file format. We also recommend that a
+   file or class name and description of purpose be included on the
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+
+Copyright {yyyy} {name of copyright owner}
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
diff --git a/public/js/extra.js b/public/js/extra.js
index c71475b5..633413eb 100644
--- a/public/js/extra.js
+++ b/public/js/extra.js
@@ -403,6 +403,49 @@ export function finishView (view) {
       console.warn(errormessage)
     }
   })
+  // cindy.js
+  const cindys = view.find('code.cindy.hljs.raw').removeClass('raw').removeClass("hljs")
+  cindys.each((key, value) => {
+    try {
+      var $value = $(value)
+      let drawscript = $value.text();
+      let canvas = document.createElement("div")
+      let debug = document.createElement("div")
+      var $ele = $(value).closest("pre")[0]
+
+      // remove current children (to remove the pre-formatted code text)
+      while ($ele.lastChild)
+        $ele.removeChild($ele.lastChild)
+
+      // append debug output (error messages) and canvas
+      $ele.appendChild(debug)
+      $ele.appendChild(canvas)
+      $ele.style.height = "30em";
+
+      console.log("cindyscript code is:", drawscript, $ele[0])
+      console.error = (err) => {
+        debug.innerText = err
+        $ele.removeChild(canvas)
+      }
+      CindyJS({
+        scripts: {draw: drawscript},
+        autoplay: true,
+        ports: [{
+          element: canvas,
+          fill: "parent",
+          transform: [{
+            visibleRect: [0, 1, 1, 0]
+          }]
+        }]
+      });
+
+      console.log("the cindy render hook was executed!")
+    } catch (err) {
+      $value.unwrap()
+      $value.parent().append(`<div class="alert alert-warning">${escapeHTML(err)}</div>`)
+      console.warn(err)
+    }
+  })
   // abc.js
   const abcs = view.find('div.abc.raw').removeClass('raw')
   abcs.each((key, value) => {
diff --git a/public/views/hedgedoc/footer.ejs b/public/views/hedgedoc/footer.ejs
index 51d47221..ebe7ab6d 100644
--- a/public/views/hedgedoc/footer.ejs
+++ b/public/views/hedgedoc/footer.ejs
@@ -20,10 +20,13 @@
 <script src="https://cdnjs.cloudflare.com/ajax/libs/viz.js/1.7.0/viz.js" integrity="sha256-8t+rndrF+TU4JtelmOH1lDHTMe2ovhO2UbzDArp5lY8=" crossorigin="anonymous" defer></script>
 <script src="https://cdnjs.cloudflare.com/ajax/libs/1000hz-bootstrap-validator/0.11.8/validator.min.js" integrity="sha256-LHeY7YoYJ0SSXbCx7sR14Pqna+52moaH3bhv0Mjzd/M=" crossorigin="anonymous" defer></script>
 <script src="https://cdnjs.cloudflare.com/ajax/libs/abcjs/3.1.1/abcjs_basic-min.js" integrity="sha256-Sq1r2XXWXQoShQKsS0Wrf5r7fRkErd9Fat9vHYeU68s=" crossorigin="anonymous"></script>
+<script type="text/javascript" src="https://cindyjs.org/dist/latest/Cindy.js"></script>
 <%- include('../build/index-scripts') %>
 <% } else { %>
 <script src="<%- serverURL %>/build/MathJax/MathJax.js" defer></script>
 <script src="<%- serverURL %>/build/MathJax/config/TeX-AMS-MML_HTMLorMML.js" defer></script>
 <script src="<%- serverURL %>/build/MathJax/config/Safe.js" defer></script>
+<script src="<%- serverURL %>/build/Cindy.js"></script>
+<script src="<%- serverURL %>/build/CindyGL.js"></script>
 <%- include('../build/index-pack-scripts') %>
 <% } %>