source: src/openlayers_heatmap/index.php@ 9782

Last change on this file since 9782 was 8970, checked in by dennisw, 14 years ago

index.php - foutjes aangepast
File size: 3.6 KB
Line 
1<?php
2
3function connectdb()
4{
5 mysql_connect("location", "username", "password")
6 or die("Error connecting to mysql: " . mysql_error());
7 mysql_select_db('database')
8 or die("Error connecting to database: " . mysql_error());
9}
10connectdb();
11
12$table = 'test_1';
13?>
14
15
16<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
17<html xmlns="http://www.w3.org/1999/xhtml">
18<head>
19<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
20<title>Heatmap</title>
21<link href="css/style.css" rel="stylesheet" type="text/css" media="screen" />
22<script type='text/javascript' src='OpenLayers-2.10/lib/OpenLayers.js'></script>
23 <script src="script/heatmap.js"></script>
24 <script src="script/canvas-barrier.js"></script>
25
26 <script type="text/javascript">
27 var map;
28 var vectorLayer;
29
30 function init(){
31 map = new OpenLayers.Map('heatmap');
32
33 var layer = new OpenLayers.Layer.WMS( "OpenLayers WMS",
34 "http://labs.metacarta.com/wms/vmap0", {layers: 'basic'} );
35 map.addLayer(layer);
36
37 map.setCenter(new OpenLayers.LonLat(4.492321,52.164898), 10);
38
39 vectorLayer = new OpenLayers.Layer.Vector.HeatMap("HeatMap", {
40 rendererOptions: {
41 // a radius of 20px looks good at this zoom-level
42 pointSize: 20 ,
43 heatMapWebWorkerPath: "../script/heatmap-webworker.js"
44
45 }
46 });
47
48 // create a few random points
49 var points = [];
50
51 <?php
52 $result=mysql_query("SELECT longitude, latitude FROM ".$table." LIMIT 100");
53 while($row=mysql_fetch_array($result))
54 {
55 echo "var point = new OpenLayers.Geometry.Point(".$row['longitude'].", ".$row['latitude'].");";
56 echo "var pointFeature = new OpenLayers.Feature.Vector(point);";
57 echo "points.push(pointFeature);";
58 }
59 ?>
60
61 vectorLayer.addFeatures(points);
62
63 vectorLayer.events.register("renderProgress", null, function(event) {
64 document.getElementById("progressBar").value = event.progress;
65 document.getElementById("progressBarFallback").innerHTML = event.progress;
66 });
67
68
69 map.addLayer(vectorLayer);
70 }
71
72 function randomPoint() {
73 var x = random(20, 480);
74 var y = random(15, 240);
75 var lonlat = map.getLonLatFromPixel(new OpenLayers.Pixel(x, y));
76
77 return new OpenLayers.Geometry.Point(lonlat.lon, lonlat.lat);
78 };
79
80
81
82
83 function toggleUseWebWorkers() {
84 vectorLayer.renderer.renderAsync = document.getElementById("useWebWorkers").checked;
85 }
86
87 </script>
88</head>
89
90<body onload="init()">
91<div id="wrapper">
92 <div id="header">
93 <a href="index.html"><img src="img/logo.png" border="0" style="float: left;"/></a>
94 &nbsp; <font style="font-size:24px; color:white;">Stichting Wireless Leiden</font><br />
95 &nbsp; <font style="font-size:46px; color:white;">Heatmap</font>
96 </div>
97 <div id="content">
98 <h1>Info</h1><br />
99 OpenLayers heatmap. Kan traag zijn met laden.
100 Werkt misschien niet even goed met elke browser.<br />
101 Query staat op LIMIT 100 om overload te voorkomen.
102 </div>
103 <div id="heatmap">
104</div>
105<div id="footer"> <a href="http://www.wirelessleiden.nl/">wirelessleiden.nl</a> </div>
106
107
108</body>
109</html>
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