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old-index.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<script src="js/main.js"></script>
<script src="js/GPXParser.min.js"></script>
<link rel="stylesheet" href="https://unpkg.com/leaflet@1.7.1/dist/leaflet.css"
integrity="sha512-xodZBNTC5n17Xt2atTPuE1HxjVMSvLVW9ocqUKLsCC5CXdbqCmblAshOMAS6/keqq/sMZMZ19scR4PsZChSR7A=="
crossorigin=""/>
<!-- Make sure you put this AFTER Leaflet's CSS -->
<script src="https://unpkg.com/leaflet@1.7.1/dist/leaflet.js"
integrity="sha512-XQoYMqMTK8LvdxXYG3nZ448hOEQiglfqkJs1NOQV44cWnUrBc8PkAOcXy20w0vlaXaVUearIOBhiXZ5V3ynxwA=="
crossorigin=""></script>
<style>
img.estimate { filter: hue-rotate(150deg); }
img.grayscale { filter: grayscale(80%); }
#map {
resize: both;
height:10em;
margin-top: 2em;
}
table, th, td {
border: 1px solid black;
border-collapse: collapse;
}
th, td {
padding-left: 1em;
padding-right: 1em;
text-align: center;
}
.empty {
background-color: #ccc;
}
</style>
<script type="text/javascript">
function load_gpx(filename) {
const xhttp = new XMLHttpRequest();
xhttp.open("GET", filename, false);
xhttp.send();
var gpx = new gpxParser(); //Create gpxParser Object
gpx.parse(xhttp.responseText);
return gpx;
}
function draw_map($_GET, gpx_track) {
let mymap = L.map('map');
new ResizeObserver(() => {
mymap.invalidateSize();
}).observe(document.getElementById('map'));
L.tileLayer(
'https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png',
{
attribution: '© <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors',
maxZoom: 50
}
).addTo(mymap);
let coordinates = gpx_track.points.map(p => [p.lat.toFixed(5), p.lon.toFixed(5)]);
var polyline = L.polyline(coordinates, { weight: 10, color: 'darkred', opacity: 0.5 }).addTo(mymap)
polyline.on('click', (ev) => {
let ll = ev.latlng
let m = L.marker(ll).addTo(mymap)
m._icon.classList.add('estimate')
m.bindTooltip("TODO estimate")
//m.bindTooltip(estimate_to_html(estimate_progress(ll))) // TODO
m.on('click', () => {
m.remove();
console.log(`&lat=${ll.lat.toFixed(5)}&lon=${ll.lng.toFixed(5)}&at=`); // helper to create test URLs
})
});
// zoom the map to the polyline
mymap.fitBounds(polyline.getBounds());
let start = state.start / 1000;
let end = Math.max(...state.points.map(p => p.ts))
let ts = guess_timestamp($_GET["at"]) / 1000; // query timestamp
for (let p of state.points) {
let m = L.marker([p.lat, p.lon]).addTo(mymap);
m.bindTooltip(`
${new Date(p.ts*1000).toISOString().replace(/(T|:\d\d\..*)/g, ' ', )}<br/>
Temps écoulé : ${time_to_string(p.ts - start)}
`);
if (p.ts !== ts) {
m._icon.style.filter = `grayscale(${80 - 80*(p.ts-start)/(end-start)}%)`;
//m._icon.style.filter = `hue-rotate(${100 * (p.ts-start)/(end-start)}deg)`;
} else {
m._icon.style.filter = `brightness(150%)`;
}
}
}
function guess_timestamp(s) {
if (-1 !== s.indexOf('T')) {
return Date.parse(s)
}
let v = parseInt(s)
if (v < 30000000000) { // before end of 1970, so we probably receive sec and not ms
return 1000*v
} else {
return v
}
}
let state = null
function Point(ts, lat, lon) {
this.ts = ts // s
this.lat = lat
this.lon = lon
}
function clear_state() {
state = {
start: null, // ms
points: []
};
}
LS_KEY = "cap_nn_state"; // should make it URL configurable, and especially should use by default the trackname or an id=
function load_state_from_local_storage(k=LS_KEY) {
let v = localStorage.getItem(k);
if (v !== null) {
state = JSON.parse(v);
}
}
function save_state_to_local_storage(k=LS_KEY) {
localStorage.setItem(k, JSON.stringify(state));
}
clear_state();
load_state_from_local_storage(LS_KEY);
console.log(JSON.stringify(state, null, 2))
function fill_elements() {
// get query arguments
var $_GET = parse_args();
if (!valid_get_args($_GET)) {
let baseurl = window.location.toString().replace(/\?.*/g, "");
document.getElementById("title").innerHTML = "Suivi de coureur sur une trace GPX (HTML/JS only)";
document.getElementById("warning").innerHTML = "Vous devez passer les arguments <code>lat</code>, <code>lon</code> et <code>track</code>.<br />" +
"Exemple d'URL valide : <br/><code>"+baseurl+"?track=migoual-concept-race&lat=44.10433&lon=3.53856&start=1641336134&at=1641306320</code> <br/>" +
"Exemple de config SMS : <br/><code>"+baseurl+"?track=migoual-concept-race&lat=%1$f&lon=%2$f&at=%3$ts&start=2022-07-09T06:03</code>" +
"<br/><br/>Exemples pour tester le multipoint : <br/>" + [
"&lat=44.12433&lon=3.13856&at=2022-01-05T06:33",
"&lat=44.10933&lon=3.30856&at=2022-01-05T12:03",
"&lat=44.13056&lon=3.38203&at=2022-01-05T15:55", // lanuejols,
"&lat=44.13078&lon=3.38426&at=2022-01-05T16:23",
"&lat=44.10517&lon=3.51768&at=2022-01-05T21:12",
"&lat=44.10433&lon=3.53856&at=2022-01-05T22:03",
]
.map(p => baseurl+"?track=migoual-concept-race&start=2022-01-05T06:03"+p)
.map(u => `<a href="${u}" target="_blank">${u}</a>`)
.join("<br/>")
;
return;
}
var url = "gpx/" + $_GET["track"] + ".gpx";
const track_id = $_GET["trkid"] ?? 0;
document.getElementById("title").innerHTML = "Suivi de coureur sur la trace <code>" + url + "</code>";
var gpx_o = load_gpx(url);
const track = gpx_o.tracks[track_id];
document.getElementById("track_name").innerHTML = track.name;
document.getElementById("track_length").innerHTML = "(" + Math.round(track.distance.total / 1000) + "km)";
let d_opt_final = distance_covered_second_half($_GET["lat"], $_GET["lon"], track);
let d_pess_final = distance_covered_first_half($_GET["lat"], $_GET["lon"], track);
document.getElementById("opt_dist_parcourue").innerHTML = Math.round(d_opt_final / 1000) + "km";
document.getElementById("pess_dist_parcourue").innerHTML = Math.round(d_pess_final / 1000) + "km";
// we receive at and start
// (for each, there is an automatic guess between ms epoch, sec epoch, or ISO date)
if (!("start" in $_GET) && state.start === null) {
for (span_id of ["temps_ecoule", "opt_temps_restant", "pess_temps_restant"]) {
document.getElementById(span_id).innerHTML = "NaN (heure de début <code>start</code> non fournie et aucune date dans la section configuration)";
}
} else if (!("at" in $_GET)) {
for (span_id of ["temps_ecoule", "opt_temps_restant", "pess_temps_restant"]) {
document.getElementById(span_id).innerHTML = "NaN (heure de début <code>at</code> non fournie)";
}
} else {
if (!state.start) {
state.start = guess_timestamp($_GET["start"]);
}
let cur_date = guess_timestamp($_GET["at"]) / 1000; // in sec
let start_date = state.start / 1000;
let elapsed = cur_date - start_date;
document.getElementById("temps_ecoule").innerHTML = time_to_string(elapsed);
let expected_remaining_time_opt = elapsed * (track.distance.total - d_opt_final) / d_opt_final;
document.getElementById("opt_temps_restant").innerHTML = time_to_string(expected_remaining_time_opt);
let expected_remaining_time_pess = elapsed * (track.distance.total - d_pess_final) / d_pess_final;
document.getElementById("pess_temps_restant").innerHTML = time_to_string(expected_remaining_time_pess);
}
// digest the query point, use timestamp as identifier
let ts = guess_timestamp($_GET["at"]) / 1000;
if (state.points.map(p => p.ts).indexOf(ts) === -1) { // avoid duplicates
state.points.push(new Point(ts, $_GET["lat"], $_GET["lon"]));
}
save_state_to_local_storage(LS_KEY);
draw_map($_GET, track);
state.points.sort(function (a, b) {
return a.ts - b.ts;
});
let s_tab_passages = "<tr><th>Heure</th><th>Latitude</th><th>Longitude</th><th>Distance (optimiste)</th><th>Distance (pessimiste)</th></tr>\n";
s_tab_passages += "<tr>"
s_tab_passages += "<td>" + new Date(state.start).toISOString().replace(/(T|:\d\d\..*)/g, ' ', ) + " (Départ)</td>"
s_tab_passages += "<td>" + track.points[0].lat + "</td>"
s_tab_passages += "<td>" + track.points[0].lon + "</td>"
s_tab_passages += "<td class='empty'></td><td class='empty'></td></tr>\n"
let max_dist_first_half = -1;
let min_dist_second_half = Infinity;
for (i=0; i<state.points.length; i++) {
let p = state.points[i];
let d_opt = distance_covered_second_half(p.lat, p.lon, track) / 1000; // km
if (d_opt < min_dist_second_half) {
min_dist_second_half = d_opt;
}
}
for (let i=0; i<state.points.length; i++) {
let p = state.points[i];
let optimistic_is_plausible = true;
let pessimistic_is_plausible = true;
let d_opt = distance_covered_second_half(p.lat, p.lon, track) / 1000; // km
let d_pess = distance_covered_first_half(p.lat, p.lon, track) / 1000; // km
let deniv_opt = cumul_dplus_second_half(p.lat, p.lon, track);
let deniv_pess = cumul_dplus_first_half(p.lat, p.lon, track);
let elapsed = p.ts - state.start / 1000; // s
let v_opt = d_opt / (elapsed / 3600);
let v_pess = d_pess / (elapsed / 3600);
if (v_opt > 20 || min_dist_second_half < d_opt - 1) { // -1 to keep some GPS error margin
optimistic_is_plausible = false;
}
if (d_pess > max_dist_first_half) {
max_dist_first_half = d_pess;
}
if (max_dist_first_half > d_pess + 1) { // +1 to keep some GPS error margin
pessimistic_is_plausible = false;
}
s_tab_passages += "<tr>"
s_tab_passages += "<td>" + new Date(p.ts*1000).toISOString().replace(/(T|:\d\d\..*)/g, ' ', ) + "</td>"
s_tab_passages += "<td>" + p.lat + "</td>"
s_tab_passages += "<td>" + p.lon + "</td>"
if (optimistic_is_plausible) {
s_tab_passages += "<td>" + Math.round(d_opt) + "km, " + Math.floor(deniv_opt) + "m D+ (" + v_opt.toFixed(1) + "km/h)</td>"
} else {
s_tab_passages += "<td class='empty'></td>"
}
if (pessimistic_is_plausible) {
s_tab_passages += "<td>" + Math.round(d_pess) + "km, " + Math.floor(deniv_pess) + "m D+ (" + v_pess.toFixed(1) + "km/h)</td>"
} else {
s_tab_passages += "<td class='empty'></td>"
}
s_tab_passages += "</tr>\n";
}
document.getElementById("tab-passages").innerHTML = s_tab_passages;
document.getElementById("config-start").value = timestampToDatetimeInputString(state.start);
}
</script>
</head>
<body onload="fill_elements()">
<h1 id="title"></h1>
<p id="warning"></p>
<div id="found_tracks">
<h2><span id="track_name"></span> <span id="track_length"></span></h2>
<p>Temps écoulé: <span id="temps_ecoule"></span></p>
<h3>Version optimiste (les coureurs ont dépassé la mi-course)</h3>
<ul>
<li>Distance parcourue: <span id="opt_dist_parcourue"></span></li>
<li>Temps restant (estimé): <span id="opt_temps_restant"></span></li>
</ul>
<h3>Version pessimiste (les coureurs sont encore dans la première moitié de course)</h3>
<ul>
<li>Distance parcourue: <span id="pess_dist_parcourue"></span></li>
<li>Temps restant (estimé): <span id="pess_temps_restant"></span></li>
</ul>
<table id="tab-passages"></table>
</div>
<div id="map"></div>
<div id="config">
<h3>Information et configuration</h3>
<button onclick="clear_state() ; save_state_to_local_storage() ; window.location.reload()">Effacer les points et config</button>
<br/>
Date de début :
<input id="config-start" type="datetime-local" oninput="state.start = Date.parse(this.value) ; save_state_to_local_storage() ; window.location.reload()">
</div>
</body>
</html>