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266 lines
10 KiB
266 lines
10 KiB
<!DOCTYPE html>
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<html>
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<head>
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<title>Node-RED 3D Map all the Things</title>
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<meta charset='utf-8' />
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<meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no'/>
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<script src="leaflet/sockjs.min.js"></script>
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<script src='https://api.tiles.mapbox.com/mapbox-gl-js/v2.6.1/mapbox-gl.js'></script>
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<link href='https://api.tiles.mapbox.com/mapbox-gl-js/v2.6.1/mapbox-gl.css' rel='stylesheet'/>
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<style>
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body { margin:0; padding:0; }
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#map { position:absolute; top:0; bottom:0; width:100%; }
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</style>
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</head>
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<body>
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<div id='map'></div>
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<script>
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// TO MAKE THE MAP APPEAR YOU MUST ADD YOUR ACCESS TOKEN FROM https://account.mapbox.com
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// This can also be set as an environment variable MAPBOXGL_TOKEN available to the Node-RED session on your server
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mapboxgl.accessToken = '';
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// You can also replace this with a custom style if you like.
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var mbstyle = 'mapbox://styles/mapbox/streets-v10';
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// var mbstyle = 'mapbox://styles/mapbox/light-v10';
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var do3dMap = function() {
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var people = {};
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var map = new mapboxgl.Map({
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container: 'map',
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style: mbstyle,
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center: [-1.3971, 51.0259],
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zoom: 16,
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pitch: 40,
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bearing: 20,
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attributionControl: true
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});
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map.on('load', function() {
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var layers = map.getStyle().layers;
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var firstSymbolId;
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for (var i = 0; i < layers.length; i++) {
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if (layers[i].type === 'symbol') {
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firstSymbolId = layers[i].id;
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break;
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}
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}
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/// Add the base 3D buildings layer
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map.addLayer({
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'id': '3d-buildings',
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'source': 'composite',
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'source-layer': 'building',
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'filter': ['==', 'extrude', 'true'],
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'type': 'fill-extrusion',
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'minzoom': 15,
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'paint': {
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'fill-extrusion-color': '#ddd',
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'fill-extrusion-height': [
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"interpolate", ["linear"], ["zoom"],
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15, 0, 15.05, ["get", "height"]
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],
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'fill-extrusion-base': [
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"interpolate", ["linear"], ["zoom"],
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15, 0, 15.05, ["get", "min_height"]
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],
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'fill-extrusion-opacity': .4
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}
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}, firstSymbolId);
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// ---- Connect to the Node-RED Events Websocket --------------------
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var connect = function() {
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ws = new SockJS(location.pathname.split("index")[0] + 'socket');
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ws.onopen = function() {
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console.log("CONNECTED");
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// if (!inIframe) {
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// document.getElementById("foot").innerHTML = "<font color='#494'>"+pagefoot+"</font>";
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// }
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ws.send(JSON.stringify({action:"connected"}));
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};
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ws.onclose = function() {
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console.log("DISCONNECTED");
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// if (!inIframe) {
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// document.getElementById("foot").innerHTML = "<font color='#900'>"+pagefoot+"</font>";
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// }
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setTimeout(function() { connect(); }, 2500);
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};
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ws.onmessage = function(e) {
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var data = JSON.parse(e.data);
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//console.log("GOT",data);
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if (Array.isArray(data)) {
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//console.log("ARRAY");
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for (var prop in data) {
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if (data[prop].command) { doCommand(data[prop].command); delete data[prop].command; }
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if (data[prop].hasOwnProperty("name")) { setMarker(data[prop]); }
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else { console.log("SKIP A",data[prop]); }
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}
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}
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else {
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if (data.command) { doCommand(data.command); delete data.command; }
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if (data.hasOwnProperty("name")) { setMarker(data); }
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else { console.log("SKIP",data); }
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}
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};
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}
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console.log("CONNECT TO",location.pathname + 'socket');
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connect();
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var doCommand = function(c) {
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console.log("CMD",c);
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// Add our own overlay geojson layer if necessary
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if (c.hasOwnProperty("map") && c.map.hasOwnProperty("geojson") && c.map.hasOwnProperty("overlay")) {
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addGeo(c.map.overlay,c.map.geojson);
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}
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var clat,clon;
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if (c.hasOwnProperty("lat")) { clat = c.lat; }
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if (c.hasOwnProperty("lon")) { clon = c.lon; }
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if (clat && clon) { map.setCenter([clon,clat]); }
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if (c.hasOwnProperty("zoom")) { map.setZoom(c.zoom); }
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if (c.hasOwnProperty("pitch")) { map.setPitch(c.pitch); }
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if (c.hasOwnProperty("bearing")) { map.setBearing(c.bearing); }
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}
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var addGeo = function(o,g) {
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map.addLayer({
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'id': o,
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'type': 'fill-extrusion',
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'source': {
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'type': 'geojson',
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'data': g
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},
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'paint': {
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// https://www.mapbox.com/mapbox-gl-js/style-spec/#expressions
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'fill-extrusion-color': ['get', 'color'],
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'fill-extrusion-height': ['get', 'height'],
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'fill-extrusion-base': ['get', 'base_height'],
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'fill-extrusion-opacity': 0.5
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}
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});
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}
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var setMarker = function(d) {
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if (d.hasOwnProperty("area")) { return; } // ignore areas for now.
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console.log("DATA",d);
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if (people.hasOwnProperty(d.name)) {
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map.getSource(d.name).setData(getPoints(d)); // Just update existing marker
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}
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else { // it's a new thing
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people[d.name] = d;
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map.addLayer({
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'id': d.name,
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'type': 'fill-extrusion',
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'source': {
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'type': 'geojson',
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'data': getPoints(d)
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},
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'paint': {
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// https://www.mapbox.com/mapbox-gl-js/style-spec/#expressions
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'fill-extrusion-color': ['get', 'color'],
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'fill-extrusion-height': ['get', 'height'],
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'fill-extrusion-base': ['get', 'base_height'],
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'fill-extrusion-opacity': 1
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}
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},firstSymbolId);
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}
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}
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var lookupColor = function(s) {
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var c = s.charAt(1);
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if (c === "F") { return "#79DFFF"; }
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if (c === "N") { return "#A4FFA3"; }
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if (c === "U") { return "#FFFF78"; }
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if (c === "H") { return "#FF7779"; }
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if (c === "S") { return "#FF7779"; }
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}
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// create the points for the marker and return the geojson
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var getPoints = function(p) {
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var fac = 0.000007; // basic size for block icon in degrees....
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var thing = "";
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if (p.hasOwnProperty("icon")) {
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if (p.icon.indexOf("male") !== -1) { thing = "person"; }
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}
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p.SDIC = p.SIDC || p.sidc;
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if (p.hasOwnProperty("SIDC")) {
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if (p.SIDC.indexOf("SFGPU") !== -1) { thing = "person"; }
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if (p.SIDC.indexOf("SFGPUC") !== -1) { thing = "block"; }
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if (p.SIDC.indexOf("GPEV") !== -1) { thing = "block"; }
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p.iconColor = lookupColor(p.SIDC);
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}
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var t = p.type || thing;
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var base = p.height || 0;
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if (t === "person") { tall = 3; } // person slightly tall and thin
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else if (t === "bar") { base = 0; tall = p.height; } // bar from ground to height
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else if (t === "block") { fac = fac * 4; tall = 5; } // block large and cube
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else { tall = 2; fac = fac * 2; } // else small cube
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//console.log({p},{t},{fac},{base},{tall});
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var sin = 1;
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var cos = 0;
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p.hdg = Number(p.hdg || p.heading);
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if (p.hasOwnProperty("hdg") && !isNaN(p.hdg)) {
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sin = Math.sin((90 - p.hdg) * Math.PI / 180);
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cos = Math.cos((90 - p.hdg) * Math.PI / 180);
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}
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var dx = 1 * cos - 1 * sin;
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var dy = 1 * sin + 1 * cos;
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var d = {
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"type": "Feature",
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"properties": {
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"name": p.name,
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"type": t,
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"color": p.iconColor || "#910000",
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"height": base + tall,
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"base_height": base
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},
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"geometry": {
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"type": "Polygon",
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"coordinates": [
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[
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[ p.lon + (fac * dx ) / Math.cos( Math.PI / 180 * p.lat ), p.lat + (fac * dy) ],
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[ p.lon - (fac * dy ) / Math.cos( Math.PI / 180 * p.lat ), p.lat + (fac * dx) ],
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[ p.lon - (fac * dx ) / Math.cos( Math.PI / 180 * p.lat ), p.lat - (fac * dy) ],
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[ p.lon + (fac * dy ) / Math.cos( Math.PI / 180 * p.lat ), p.lat - (fac * dx) ],
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[ p.lon + (fac * dx ) / Math.cos( Math.PI / 180 * p.lat ), p.lat + (fac * dy) ],
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]
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]
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}
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}
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return d;
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}
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document.addEventListener ("keydown", function (ev) {
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if (ev.ctrlKey && ev.altKey && ev.code === "Digit3") {
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ws.close();
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//window.onbeforeunload = null;
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window.location.href = "index.html";
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}
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});
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});
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}
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if (mapboxgl.accessToken !== '') {
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do3dMap();
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}
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else {
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fetch('/-worldmap3d-key', { credentials:'same-origin' })
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.then(response => response.json())
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.then(data => {
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mapboxgl.accessToken = data.key;
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if (mapboxgl.accessToken === "") {
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alert("To make the map appear you must add your Access Token from https://account.mapbox.com by setting the MAPBOXGL_TOKEN environment variable on your server.");
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return;
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}
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do3dMap();
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})
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.catch(error => { console.log("Unable to fetch MAPBOXGL_TOKEN.",error)} );
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}
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</script>
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</body>
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</html>
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