264 lines
8.6 KiB
JavaScript
264 lines
8.6 KiB
JavaScript
Map = null;
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CenterLat = 45.0;
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CenterLon = 9.0;
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ZoomLvl = 5;
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Planes = {};
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PlanesOnMap = 0;
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PlanesOnGrid = 0;
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Selected = null;
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if (localStorage['CenterLat']) { CenterLat = Number(localStorage['CenterLat']); }
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if (localStorage['CenterLon']) { CenterLon = Number(localStorage['CenterLon']); }
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if (localStorage['ZoomLvl']) { ZoomLvl = Number(localStorage['ZoomLvl']); }
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function getIconForPlane(plane) {
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var r = 255, g = 255, b = 0;
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var maxalt = 40000; // Max altitude in the average case
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var invalt = maxalt-plane.altitude;
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var selected = (Selected == plane.hex);
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if (invalt < 0) invalt = 0;
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b = parseInt(255/maxalt*invalt);
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return {
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strokeWeight: (selected ? 2 : 1),
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path: google.maps.SymbolPath.FORWARD_CLOSED_ARROW,
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scale: 5,
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fillColor: 'rgb('+r+','+g+','+b+')',
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fillOpacity: 0.9,
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rotation: plane.track
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};
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}
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function selectPlane() {
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if (!Planes[this.planehex]) return;
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var old = Selected;
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Selected = this.planehex;
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if (Planes[old]) {
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/* Remove the highlight in the previously selected plane. */
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Planes[old].marker.setIcon(getIconForPlane(Planes[old]));
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}
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Planes[Selected].marker.setIcon(getIconForPlane(Planes[Selected]));
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refreshSelectedInfo();
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}
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function refreshGeneralInfo() {
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var i = document.getElementById('geninfo');
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i.innerHTML = PlanesOnGrid + ' planes on grid.<br>';
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i.innerHTML += PlanesOnMap + ' planes on map.';
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}
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function refreshSelectedInfo() {
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var i = document.getElementById('selinfo');
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var p = Planes[Selected];
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if (!p) return;
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var html = 'ICAO: '+p.hex+'<br>';
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if (p.flight.length) {
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html += '<b>'+p.flight+'</b><br>';
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}
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html += 'Altitude: '+p.altitude+' feet<br>';
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html += 'Speed: '+p.speed+' knots<br>';
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html += 'Coordinates: '+p.lat+', '+p.lon+'<br>';
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html += 'Messages: '+p.messages+'<br>';
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html += 'Seen: '+p.seen+' sec<br>';
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i.innerHTML = html;
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}
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function refreshTableInfo() {
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var i = document.getElementById('tabinfo');
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var html = '<table id="tableinfo" width="100%">';
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html += '<thead style="background-color: #CCCCCC;"><td>Flight</td><td align="right">Altitude</td><td align="center">Speed</td><td align="center">Track</td><td>Lat</td><td>Long</td><td>Seen</td><td>Msgs</td></thead>';
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for (var p in Planes) {
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if (p == Selected) {
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html += '<tr style="background-color: #F0F0F0;">';
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} else {
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html += '<tr>';
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}
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html += '<td>' + Planes[p].flight + '</td>';
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html += '<td align="right">' + Planes[p].altitude + '</td>';
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html += '<td align="center">' + Planes[p].speed + '</td>';
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html += '<td align="center">' + Planes[p].track + '</td>';
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html += '<td>' + Planes[p].lat + '</td>';
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html += '<td>' + Planes[p].lon + '</td>';
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html += '<td align="center">' + Planes[p].seen + '</td>';
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html += '<td align="center">' + Planes[p].messages + '</td>';
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html += '</tr>';
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}
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html += '</table>';
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i.innerHTML = html;
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}
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function fetchData() {
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$.getJSON('data.json', function(data) {
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var stillhere = {}
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PlanesOnMap = 0;
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for (var j=0; j < data.length; j++) {
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var plane = data[j];
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stillhere[plane.hex] = true;
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plane.flight = $.trim(plane.flight);
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if (plane.lat != 0 && plane.lon != 0) {
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// Show only planes with position
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var marker = null;
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PlanesOnMap++;
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if (Planes[plane.hex]) {
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// Move and refresh old plane on map
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var myplane = Planes[plane.hex];
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marker = myplane.marker;
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var icon = marker.getIcon();
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var newpos = new google.maps.LatLng(plane.lat, plane.lon);
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marker.setPosition(newpos);
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marker.setIcon(getIconForPlane(plane));
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myplane.altitude = plane.altitude;
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myplane.speed = plane.speed;
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myplane.lat = plane.lat;
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myplane.lon = plane.lon;
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myplane.track = plane.track;
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myplane.flight = plane.flight;
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myplane.seen = plane.seen;
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myplane.messages = plane.messages;
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if (myplane.hex == Selected)
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refreshSelectedInfo();
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} else {
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// Add new plane to map
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marker = new google.maps.Marker({
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position: new google.maps.LatLng(plane.lat, plane.lon),
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map: Map,
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icon: getIconForPlane(plane)
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});
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plane.marker = marker;
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marker.planehex = plane.hex;
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Planes[plane.hex] = plane;
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// Trap clicks for this marker.
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google.maps.event.addListener(marker, 'click', selectPlane);
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}
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if (plane.flight.length == 0) {
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marker.setTitle(plane.hex)
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} else {
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marker.setTitle(plane.flight+' ('+plane.hex+')')
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}
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}
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}
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PlanesOnGrid = data.length;
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/* Remove idle planes. */
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for (var p in Planes) {
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if (!stillhere[p]) {
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Planes[p].marker.setMap(null);
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delete Planes[p];
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}
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}
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refreshTableInfo() ;
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});
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}
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function checkTime(i) {
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if (i < 10) {
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return "0" + i;
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}
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return i;
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}
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function printTime() {
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var currentTime = new Date();
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var hours = checkTime(currentTime.getUTCHours());
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var minutes = checkTime(currentTime.getUTCMinutes());
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var seconds = checkTime(currentTime.getUTCSeconds());
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if (document.getElementById) {
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document.getElementById('utcTime').innerHTML =
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hours + ":" + minutes + ":" + seconds;
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}
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}
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function placeFooter() {
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var windHeight = $(window).height();
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var footerHeight = $('#info_footer').height();
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var offset = parseInt(windHeight) - parseInt(footerHeight);
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var footerWidth = parseInt($('#info_footer').width());
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var infoWidth = parseInt($('#info').width());
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var marginLeft = parseInt((infoWidth / 2) - (footerWidth / 2));
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$('#info_footer').css('top', offset);
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$('#info_footer').css('margin-left', marginLeft);
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}
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function resetMap() {
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localStorage['CenterLat'] = 45.0;
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localStorage['CenterLon'] = 9.0;
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localStorage['ZoomLvl'] = 5;
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Map.setZoom(parseInt(localStorage['ZoomLvl']));
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Map.setCenter(new google.maps.LatLng(parseInt(localStorage['CenterLat']), parseInt(localStorage['CenterLon'])));
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Selected = null;
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document.getElementById('selinfo').innerHTML = '';
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}
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function initialize() {
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var mapTypeIds = [];
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for(var type in google.maps.MapTypeId) {
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mapTypeIds.push(google.maps.MapTypeId[type]);
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}
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mapTypeIds.push("OSM");
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var mapOptions = {
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center: new google.maps.LatLng(CenterLat, CenterLon),
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zoom: ZoomLvl,
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mapTypeId: google.maps.MapTypeId.ROADMAP,
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mapTypeControlOptions: {
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mapTypeIds: mapTypeIds,
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}
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};
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Map = new google.maps.Map(document.getElementById("map_canvas"), mapOptions);
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//Define OSM map type pointing at the OpenStreetMap tile server
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Map.mapTypes.set("OSM", new google.maps.ImageMapType({
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getTileUrl: function(coord, zoom) {
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return "http://tile.openstreetmap.org/" + zoom + "/" + coord.x + "/" + coord.y + ".png";
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},
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tileSize: new google.maps.Size(256, 256),
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name: "OpenStreetMap",
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maxZoom: 18
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}));
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// show footer at info-area
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$(function(){
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$(window).resize(function(e){
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placeFooter();
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});
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placeFooter();
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// hide it before it's positioned
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$('#info_footer').css('display','inline');
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});
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// Listener for newly created Map
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google.maps.event.addListener(Map, 'center_changed', function() {
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localStorage['CenterLat'] = Map.getCenter().lat();
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localStorage['CenterLon'] = Map.getCenter().lng();
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});
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google.maps.event.addListener(Map, 'zoom_changed', function() {
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localStorage['ZoomLvl'] = Map.getZoom();
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});
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// Setup our timer to poll from the server.
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window.setInterval(function() {
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fetchData();
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refreshGeneralInfo();
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}, 1000);
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// Faster timer, smoother things
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window.setInterval(function() {
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printTime();
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}, 250);
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}
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