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<!doctype html>
<html class="no-js" lang="">
<head>
<meta charset="utf-8">
<meta http-equiv="x-ua-compatible" content="ie=edge">
<title>geolocation tracker test</title>
<meta name="description" content="">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="apple-touch-icon" href="/apple-touch-icon.png">
<!-- Place favicon.ico in the root directory -->
</head>
<body>
<!--[if lt IE 8]>
<p class="browserupgrade">
You are using an <strong>outdated</strong> browser. Please
<a href="http://browsehappy.com/">upgrade your browser</a> to improve
your experience.
</p>
<![endif]-->
<button id = "initialise">Start Tracking</button><br/>
<p id = "status"></p>
<a id = "map-link" target="_blank"></a>
<p>
Latitude: <span id="latitude"></span><br>
Longitude: <span id="longitude"></span><br>
Altitude: <span id="altitude"></span><br>
Accuracy: <span id="accuracy"></span><br>
Speed: <span id="speed"></span><br>
Angle: <span id="angle"></span><br>
</p>
<input id="note" placeholder="enter note here">
<button id="submit-note">Submit</button>
<p>
<button id="download">Download Log</button>
<button id="reset">Reset History</button>
</p>
<p id="error"></p>
</body>
<script>
/* TODO:
/ - how to push things to rocket? (probably just http post for now …)
/ - how to rate-limit new positions (either count dates, or option in geolocation?)
/ - how to get closest point on path?
*/
let lat = document.getElementById("latitude");
let long = document.getElementById("longitude");
let speed = document.getElementById("speed");
let acc = document.getElementById("accuracy");
let angle = document.getElementById("angle");
let alt = document.getElementById("altitude");
let status = document.querySelector('#status');
let mapLink = document.querySelector('#map-link');
function resetDisplay () {
lat.innerText = "-";
long.innerText = "-";
speed.innerText = "-";
acc.innerText = "-";
angle.innerText = "-";
alt.innerText = "-";
}
function init() {
mapLink.href = '';
mapLink.textContent = '';
resetDisplay();
if(!navigator.geolocation) {
status.textContent = 'Error: Geolocation API is not supported!';
} else {
status.textContent = 'Initialising …';
trackPosition();
}
}
var errcount = 1;
var geolog = [];
function trackPosition() {
function success(position) {
const latitude = position.coords.latitude;
const longitude = position.coords.longitude;
errcount = 0;
status.textContent = '';
mapLink.href = `https://www.openstreetmap.org/#map=18/${latitude}/${longitude}`;
mapLink.textContent = `Latitude: ${latitude} °, Longitude: ${longitude} °`;
lat.innerText = position.coords.latitude;
long.innerText = position.coords.longitude;
alt.innerText = position.coords.altitude;
acc.innerText = position.coords.accuracy;
speed.innerText = position.coords.speed;
angle.innerText = position.coords.heading;
document.getElementById("error").innerText = JSON.stringify(position.coords);
let datapoint = {
timestamp: new Date().toISOString(),
data: {
latitude: position.coords.latitude,
longitude: position.coords.longitude,
altitude: position.coords.altitude,
accuracy: position.coords.accuracy,
altitudeAccuracy: position.coords.altitudeAccuracy,
heading: position.coords.heading,
speed: position.coords.speed
}
};
geolog.push(datapoint);
fetch(
"https://ilztal.live/geoloc/push",
{ method: "POST", body: JSON.stringify(datapoint)}
).then(() => console.log("pushed position"))
.catch(e => console.log("some error: ", e))
}
function error() {
status.textContent = "("+errcount+") Error: Getting Location failed, retrying …";
resetDisplay();
errcount += 1;
setTimeout(trackPosition, 3000);
}
navigator.geolocation.watchPosition(success, error);
}
function downloadHistory () {
let json = JSON.stringify(geolog);
let a = document.createElement("a");
console.log("attempting download!", geolog);
a.setAttribute("href", "data:text/plain;charset=utf-8," + encodeURIComponent(json));
a.setAttribute("download","history.json");
document.body.appendChild(a);
a.click();
document.body.removeChild(a);
}
document.getElementById("initialise").addEventListener('click', init);
document.getElementById("submit-note").onclick = (a) => {
let input = document.getElementById("note");
let text = input.value;
console.log("submitting note:", text);
geolog.push(text);
fetch("https://ilztal.live/geoloc/push",
{method:"POST", body: JSON.stringify({
//ty: "note",
timestamp: new Date().toISOString(),
data: text
})}
).then(() => input.value = "")
.catch(e => {
document.getElementById("error").innerText = "error:" + e;
console.log("error occurred");
});
};
document.getElementById("download").onclick = (a) => downloadHistory();
document.getElementById("reset").onclick = (a) => geolog = [];
</script>
</body>
</html>
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