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airports.html
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airports.html
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<!DOCTYPE html public "-//W3C//DTD HTML 4.0 Strict//en">
<html>
<head>
<title>Crossfeed JSON Test Corner</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
<meta name="apple-mobile-web-app-capable" content="yes">
<script type="text/javascript" src="http://static.fgx.ch/js/jquery-1.8.3/jquery-1.8.3.min.js"></script>
<!--
,MMN, ...................................................................................
,MMM, CROSSFEED CLIENT MAPPING TESTSUITE: FULL SCREEN MAP
JMMN,
.gg, MMMM, These files are written for testing and develop
.MMN .....jMMMMa....... the crossfeed client (written by Geoff McLane) of FlightGear
.TMMMMMMMMMMMMMMMMMMMMMMM@ Multiplayer Server (written by Oliver Schroeder).
.MMF `?WMMMM"7??!` See http://www.fgx.ch for more information.
?""` dMMM' (c) 2013 Yves Sablonier, Zurich
.MMM' Licence: GPLv2 or later
.MMM' http://www.gnu.org/licenses/gpl.txt
.MMM' ............................................
Please do not remove this copyright and license information from this source in any case.
For OpenLayers (FreeBSD license) and jQuery (MIT license) please follow this links:
http://openlayers.org, http://jquery.org
........................................................................................
-->
<link rel="stylesheet" href="./css/stylesheet.css" type="text/css">
<link rel="stylesheet" href="http://static.fgx.ch/js/OpenLayers-2.11/theme/default/style.css" type="text/css">
<script src="http://static.fgx.ch/js/OpenLayers-2.11/OpenLayers.js"></script>
<script type="text/javascript">
// disable ajax caching
$.ajaxSetup({cache: false});
// ----------------------------------------------------------------------------------------------
// Openlayers
// ----------------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------------
// Creating the map
// ----------------------------------------------------------------------------------------------
var map;
var fromProjection = new OpenLayers.Projection("EPSG:4326");
var toProjection = new OpenLayers.Projection("EPSG:3857");
var planeStyle = new OpenLayers.Style(
{
pointRadius: 1,
strokeWidth: 0.0,
graphicWidth: "30", graphicHeight: "30", graphicOpacity: 0.99,
rotation: "${hdg}",
labelAlign: "center",
labelXOffset: "0",
labelYOffset: "0"
}
,{
rules: [
new OpenLayers.Rule({
filter: new OpenLayers.Filter.Comparison({
type: OpenLayers.Filter.Comparison.LESS_THAN,
property: "spd_kts",
value: 10
}),
symbolizer: {
externalGraphic: "images/plane_gray_30x30.png"
}
}),
new OpenLayers.Rule({
filter: new OpenLayers.Filter.Comparison({
type: OpenLayers.Filter.Comparison.GREATER_THAN,
property: "spd_kts",
value: 9
}),
symbolizer: {
externalGraphic: "images/plane_red_30x30.png"
}
}),
new OpenLayers.Rule({
filter: new OpenLayers.Filter.Comparison({
type: OpenLayers.Filter.Comparison.GREATER_THAN,
property: "select",
value: 0
}),
symbolizer: {
externalGraphic: "images/plane_green_30x30.png"
}
})
]}
);
var labelStyle = new OpenLayers.Style(
{
externalGraphic: "images/label_background.gif",
graphicWidth: "${labelWidth}", graphicHeight: "13", graphicOpacity: 0.99,
graphicXOffset: "${labelOffset}", graphicYOffset: 14,
fillColor: "#000000",
fillOpacity: 0.0,
strokeWidth: 0.0,
label : "${callsign}",
fontColor: "#CCCCCC", fontSize: "11px", fontFamily: "\"DejaVuSansMonoBold\",monospace", fontWeight: "normal",
labelAlign: "center",
labelXOffset: "0",
labelYOffset: "-22"
}
);
var planes = new OpenLayers.Layer.Vector("Planes", {styleMap: planeStyle});
var planesLabel = new OpenLayers.Layer.Vector("Callsign", {styleMap: labelStyle});
function init(){
map = new OpenLayers.Map("map", {
allOverlays: false,
projection: new OpenLayers.Projection("EPSG:3857"),
// this sets wgs84/4326 as default for display coords
displayProjection: new OpenLayers.Projection("EPSG:4326"),
maxExtent: new OpenLayers.Bounds(-20037508.34,-20037508.34,20037508.34,20037508.34),
zoomLevels: 17,
//maxResolution: 19567.87923828125,
//minResolution: 0.29858214169740677,
resolutions: [
//156543.03390625,
//78271.516953125,
//39135.7584765625,
19567.87923828125,
9783.939619140625,
4891.9698095703125,
2445.9849047851562,
1222.9924523925781,
611.4962261962891,
305.74811309814453,
152.87405654907226,
76.43702827453613,
38.218514137268066,
19.109257068634033,
9.554628534317017,
4.777314267158508,
2.388657133579254,
1.194328566789627,
0.5971642833948135,
0.29858214169740677
]
});
var osmlayer = new OpenLayers.Layer.OSM( "OSM normal" );
osmlayer.setOpacity(1.0);
var osmlayer_light = new OpenLayers.Layer.OSM( "OSM light" );
osmlayer_light.setOpacity(0.5);
var airport = new OpenLayers.Layer.WMS(
"Airport","http://tilecache.fgx.ch/?",
{layers: "Airport" , transparent: "True" , format: "image/png"},
{visibility: true,
reproject: false}
);
map.addLayers([ osmlayer_light,
airport,
planes,
planesLabel]
);
map.addControl(new OpenLayers.Control.Permalink('permalink'));
map.addControl(new OpenLayers.Control.MousePosition());
//map.setCenter(new OpenLayers.LonLat(1.0, 50.0), 5);
if (zoom.length == 0) { zoom = 5; } // set default ZOOM
var centerpoint;
if (lon.length && lat.length) { // if URL contains lon,lat points
centerpoint = new OpenLayers.LonLat(lon,lat); // user center point
} else {
centerpoint = new OpenLayers.LonLat(1.0,50.0); // get a default center
}
var repoint = centerpoint.transform( fromProjection, toProjection);
map.setCenter(centerpoint,zoom);
}
// Planes and Labels are doubled, it’s not possible to set a background for
// a label in OpenLayers yet. This is a snag. Because we want rotation we can’t
// have a point graphic with label integrated.
function addPlanes(mapfid, lon, lat, hdg, spd_kts) {
var point = new OpenLayers.Geometry.Point(lon,lat)
var repoint = point.transform( fromProjection, toProjection);
var feature = new OpenLayers.Feature.Vector(repoint);
// that does the trick, the feature gets the fid
// as feature ID
feature.id = mapfid;
if (selected == mapfid) {
feature.attributes.select = 1;
}
feature.attributes.hdg = hdg;
feature.attributes.spd_kts = spd_kts;
planes.addFeatures(feature);
}
function addLabels(mapfid, callsign, lon, lat) {
var pointLabel = new OpenLayers.Geometry.Point(lon,lat)
var repointLabel = pointLabel.transform( fromProjection, toProjection);
var labelFeature = new OpenLayers.Feature.Vector(repointLabel);
labelFeature.id = "label"+mapfid;
labelFeature.attributes.callsign = callsign.toUpperCase();
// This calculates label background width and offset
labelWidth = 8*callsign.length
labelOffset = labelWidth/2*-1.0
labelFeature.attributes.labelWidth = labelWidth;
labelFeature.attributes.labelOffset = labelOffset;
planesLabel.addFeatures(labelFeature);
}
function removePlanes(fid) {
planes.removeFeatures(planes.getFeatureById(fid));
planesLabel.removeFeatures(planesLabel.getFeatureById("label"+fid));
}
function removePlaneOnly(fid) {
planes.removeFeatures(planes.getFeatureById(fid));
}
// now re-drawing of the features, just move what’s already here
function updatePlanes(mapfid, lon, lat, hdg, spd_kts) {
//planes.getFeatureById(mapfid).move(new OpenLayers.LonLat(lon,lat));
removePlaneOnly(mapfid)
addPlanes(mapfid, lon, lat, hdg, spd_kts)
var movepoint = new OpenLayers.LonLat(lon,lat).transform( fromProjection, toProjection);
planesLabel.getFeatureById("label"+mapfid).move(movepoint);
}
// In case we zoom to one plane we center the map
// In case it there are more than one plane selected we zoom to bounds. Hah!
function zoomToBoundsSelected(selected) {
bounds = new OpenLayers.Bounds();
if (selected.length>1) {
for (i=0;i<selected.length;i++) {
lon = planesLabel.getFeatureById("label"+selected[i]).geometry.x
lat = planesLabel.getFeatureById("label"+selected[i]).geometry.y
bounds.extend(new OpenLayers.LonLat(lon,lat))
bounds.toBBOX();
}
map.zoomToExtent(bounds);
}else{
lon = planesLabel.getFeatureById("label"+selected[0]).geometry.x
lat = planesLabel.getFeatureById("label"+selected[0]).geometry.y
console.log(lon, lat)
zoompoint = new OpenLayers.LonLat(lon, lat);
map.setCenter(zoompoint,9);
}
}
// ----------------------------------------------------------------------------------------------
// jQuery
// ----------------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------------
// This is needed to NOT remove the flights from the first load
// ----------------------------------------------------------------------------------------------
var firstload = 1
var isdown = 0
// ----------------------------------------------------------------------------------------------
// Init vars
// ----------------------------------------------------------------------------------------------
var datamap = [];
var removal = [];
var selected = [];
// ----------------------------------------------------------------------------------------------
// Creating the main table
// ----------------------------------------------------------------------------------------------
// Some strings to construct the table, and a nodata value just in case ...
var tableheader = "<table><tr class='table_header'><td class='fid' style='display: none;'><p>FID</p>'"+
"</td><td><p>Callsign</p></td><td class='lon' style='display: none'><p>Longitude</p></td>"+
"<td class='lat' style='display: none'><p>Latitude</p></td><td><p>Heading</p></td><td><p>Altitude"+
"</p></td><td><p>Speed</p></td></tr>"
var nodata = "<tr class='flightrow'><td class='fid'>FID<td class='callsign'><p>No data ...<td class='lon'><p>\
<td class='lat'><td class='hdg'><p><td class='alt_ft'><p><td class='speed'><p>"
$(document).ready(function() {
$(tableheader).appendTo('#header_flights')
$("<table cellspacing='0' cellpadding='0' id='flights' />")
.appendTo("#content_flights");
$('#flights').hide().show(300);
});
// ----------------------------------------------------------------------------------------------
// Adding flights
// ----------------------------------------------------------------------------------------------
function addFlight(flight) {
// Add flight to the map
var fid = flight.children('.fid').text()
var callsign = flight.children('.callsign').text()
var lon = flight.children('.lon').text()
var lat = flight.children('.lat').text()
var hdg = flight.children('.hdg').text()
var spd_kts = flight.children('.spd_kts').text()
addPlanes(fid, lon, lat, hdg, spd_kts)
addLabels(fid, callsign, lon, lat)
// Add flight to the table
$('#flights').append(flight);
}
// ----------------------------------------------------------------------------------------------
// Removing flights
// ----------------------------------------------------------------------------------------------
function removeFlights() {
// Remove features from table
$.each(removal, function(i, val) {
$.each($('.flightrow'), function(i, row) {
if (($(row).get(0).id) == val) {
$(row).hide(1000, function(){ $(row).remove(); });
}
});
});
// Remove features from the map
$.each(removal, function(i, val) {
removePlanes(val)
});
}
// ----------------------------------------------------------------------------------------------
// Loading the JSON data
// ----------------------------------------------------------------------------------------------
// Function has a fixed timeout (5 secs)
var req = null;
function workData() {
$('.fid').hide()
$('.latitude').hide()
$('.longitude').hide()
// reset the arrays
var flightshere = [];
var flightsdata = [];
var datafids = [];
removal = [];
// we do not care about the "success" label, we check for
// request loading state directly
if (req.status == "200" && req.readyState == 4) {
// JSON parsing the response string
var data = JSON.parse(req.responseText);
$(data.flights).each(function (i){
// Defining the flight row
var flightrow = "<tr class='flightrow' id='"+this.fid+"'>"+
"<td class='fid' style='display: none'><p>"+this.fid+
"<td class='callsign'><p>"+this.callsign.toUpperCase()+
"<td class='lon' style='display: none'><p>"+this.lon+
"<td class='lat' style='display: none'><p>"+this.lat+
"<td class='hdg'><p>"+this.hdg+
"<td class='alt_ft'><p>"+this.alt_ft+
"<td class='spd_kts'><p>"+this.spd_kts+"</tr>"
flightsdata.push($(flightrow))
datafids.push(JSON.stringify(this.fid))
}); // END each flight
// We start to draw only when document is fully loaded
$(document).ready(function() {
// Getting all the flights already on screen
$('.flightrow').each( function() {
flightshere.push($(this).children('.fid').text())
});
// First load, append all data to the page
if (firstload > 0) {
$.each(flightsdata, function () {
addFlight($(this))
});
}
// ADD OR UPDATE: Not first load, so append only what's not already here
else{
$.each(flightsdata, function(i) {
var checkfidel = $(this).children('.fid').text()
if ($.inArray(checkfidel, selected) >= 0) {
$(this).addClass('back_greenB7F')
}else{
$(this).removeClass('back_greenB7F')
}
// Update vars
var checkfid = $(this).children('.fid').text()
var lat = $(this).children('.lat').text()
var lon = $(this).children('.lon').text()
var hdg = $(this).children('.hdg').text()
var spd_kts = $(this).children('.spd_kts').text()
// Update check
if ($.inArray(checkfidel, flightshere) > -1) {
// Update table
var checkfid2 = "\[id=\""+checkfid+"\"\]"
if (spd_kts < 10) {$(this).addClass('gray666')}
$(checkfid2).replaceWith($(this))
// Update the map
// For openlayers we have to change lat/lon order, grmbl
updatePlanes(checkfid, lon, lat, hdg, spd_kts)
}
else{
//console.log("Flight to add: "+flightsdata[i].children('.callsign').text())
if (spd_kts < 10) {$(this).addClass('gray666')}
addFlight($(this))
}
});
}
// REMOVE: Have a look what needs to be removed and add it to the removal array
$('.fid').each( function() {
var fidrem = $(this).children().text()
if ($.inArray(fidrem, datafids) < 0) {
removal.push(fidrem)
}
if ($.inArray(fidrem, flightsdata) > -1) {
}
});
removeFlights();
// Showing the heading with background image
$('.hdg').each( function() {
var value = $(this).children('p').text()
if (between(value,0,22) || between(value,293,360)) {
$(this).addClass('hdg_n')
}
if (between(value,23,67)) {
$(this).addClass('hdg_ne')
}
if (between(value,68,112)) {
$(this).addClass('hdg_e')
}
if (between(value,113,157)) {
$(this).addClass('hdg_se')
}
if (between(value,158,202)) {
$(this).addClass('hdg_s')
}
if (between(value,203,247)) {
$(this).addClass('hdg_sw')
}
if (between(value,248,292)) {
$(this).addClass('hdg_w')
}
});
$('.flightrow').hover(
function() {
$(this).addClass('back_grayCCC')
},
function() {
$(this).removeClass('back_grayCCC')
}
);
// Select a flight in the list
$('.flightrow').click(
function() {
var check = $(this).children('.fid').text()
if ($.inArray(check, selected) < 0) {
$(this).addClass('back_greenB7F')
selected.push(check)
zoomToBoundsSelected(selected)
}else{
$(this).removeClass('back_greenB7F')
var index = selected.indexOf($(this).children('.fid').text());
selected.splice(index,1);
$(this).removeClass('back_greenB7F')
}
});
}); // END document ready
// Reload data around 2 sec (1800 ms, cf-client updates 1000)
setTimeout("sendRequest('http://crossfeed.fgx.ch/data')", 1800)
} // END if req.readyState
} // END workData()
// ----------------------------------------------------------------------------------------------
// initial loading in document body now, but we set first load flag here
// ----------------------------------------------------------------------------------------------
firstload = 0 // means it’s not the first load anymore ;-)
// ----------------------------------------------------------------------------------------------
// Helpers
// ----------------------------------------------------------------------------------------------
// XMLHttpRequest handling
function getXMLHttpRequest() {
var httpReq = null;
if (window.XMLHttpRequest) {
httpReq = new XMLHttpRequest();
}
else if (typeof ActiveXObject != "undefined") {
httpReq = new ActiveXObject("Microsoft.XMLHTTP")
}
return httpReq;
}
function sendRequest(url) {
req = getXMLHttpRequest()
req.onreadystatechange = workData;
req.open("GET", url)
req.send(null);
}
// Check number between
function between(x, min, max) {
return x >= min && x <= max;
}
// Array IE workaround from Mozilla, fastest implementation
if (!Array.prototype.indexOf) {
Array.prototype.indexOf = function (searchElement /*, fromIndex */ ) {
"use strict";
if (this == null) {
throw new TypeError();
}
var t = Object(this);
var len = t.length >>> 0;
if (len === 0) {
return -1;
}
var n = 0;
if (arguments.length > 1) {
n = Number(arguments[1]);
if (n != n) { // shortcut for verifying if it's NaN
n = 0;
} else if (n != 0 && n != Infinity && n != -Infinity) {
n = (n > 0 || -1) * Math.floor(Math.abs(n));
}
}
if (n >= len) {
return -1;
}
var k = n >= 0 ? n : Math.max(len - Math.abs(n), 0);
for (; k < len; k++) {
if (k in t && t[k] === searchElement) {
return k;
}
}
return -1;
}
}
// The good old GUP function by Geoff McLane
function gup( name ) {
name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
var regexS = "[\\?&]"+name+"=([^&#]*)";
var regex = new RegExp( regexS );
var results = regex.exec( window.location.href );
if( results == null )
return "";
else
return results[1];
}
</script>
<style type="text/css">
</style>
</head>
<body>
<div id="wrapper">
<div id="header_flights"></div>
<div id="content_flights"></div>
</div>
<div id="map"></div>
<!-- This gives IE compatibility with the OpenLayers map init function -->
<script type="text/javascript" defer="defer">
var lat = gup('lat');
var lon = gup('lon');
var zoom = gup('zoom');
init(lon,lat,zoom);
sendRequest("http://crossfeed.fgx.ch/data")
</script>
</body>
</html>