| 1 | // Uses zoomlevel en mouseposition to call the nodelist.py view. View returns nodes in json format which is read and printed in document element.
|
|---|
| 2 | function getNodeList(zoomlevel, mousepos){
|
|---|
| 3 | var nodelist;
|
|---|
| 4 |
|
|---|
| 5 | if (window.XMLHttpRequest){
|
|---|
| 6 | nodelist=new XMLHttpRequest();
|
|---|
| 7 | }
|
|---|
| 8 | else{
|
|---|
| 9 | nodelist=new ActiveXObject("Microsoft.XMLHTTP");
|
|---|
| 10 | }
|
|---|
| 11 |
|
|---|
| 12 | nodelist.onreadystatechange=function(){
|
|---|
| 13 | if (nodelist.readyState==4 && nodelist.status==200){
|
|---|
| 14 | json=eval('(' + nodelist.responseText + ')');
|
|---|
| 15 | var list = '<br>';
|
|---|
| 16 | for (var i=0; i<json.length; i++){
|
|---|
| 17 | list += json[i].fields.ssid + '<br>';
|
|---|
| 18 | }
|
|---|
| 19 | document.getElementById('nodelist').innerHTML=list;
|
|---|
| 20 | }
|
|---|
| 21 | }
|
|---|
| 22 | nodelist.open("GET","/website/nodelist/" + zoomlevel + "," + mousepos.lat + "," + mousepos.lon,true);
|
|---|
| 23 | nodelist.send();
|
|---|
| 24 | }
|
|---|
| 25 |
|
|---|
| 26 |
|
|---|
| 27 | // Retrieve form values for filter and pass them on to addFilter()
|
|---|
| 28 | function filters(){
|
|---|
| 29 | var user = encodeURIComponent(document.getElementById("user").value);
|
|---|
| 30 | var dataset = encodeURIComponent(document.getElementById("dataset").value);
|
|---|
| 31 | var wlnode = encodeURIComponent(document.getElementById("wlnode").value);
|
|---|
| 32 | var enc = encodeURIComponent(document.getElementById("enc").value);
|
|---|
| 33 | var date = encodeURIComponent(document.getElementById("date").value);
|
|---|
| 34 | var colour = encodeURIComponent(document.getElementById("colour").value);
|
|---|
| 35 | var lname = encodeURIComponent(document.getElementById("lname").value);
|
|---|
| 36 |
|
|---|
| 37 | addFilter(user, dataset, wlnode, enc, date, colour, lname);
|
|---|
| 38 | }
|
|---|
| 39 |
|
|---|
| 40 |
|
|---|
| 41 | // Some value checks, create an overlay using these values and place it on the map.
|
|---|
| 42 | function addFilter(user, dataset, wlnode, enc, date, colour, lname){
|
|---|
| 43 |
|
|---|
| 44 | if (user != ''){user='&accespoint__id='+user;}
|
|---|
| 45 | else {user = '';}
|
|---|
| 46 | if (dataset != ''){dataset='&meetrondje__naam='+dataset;}
|
|---|
| 47 | else {dataset = '';}
|
|---|
| 48 | if (wlnode != ''){wlnode='&accespoint__ssid='+wlnode;}
|
|---|
| 49 | else {wlnode = '';}
|
|---|
| 50 | if (enc != ''){enc='&accespoint__encryptie='+enc;}
|
|---|
| 51 | else {enc = '';}
|
|---|
| 52 | if (date != ''){date='&meetrondje__datum='+date;}
|
|---|
| 53 | else {date = '';}
|
|---|
| 54 | if (colour != ''){colour='colour='+colour;}
|
|---|
| 55 | else {colour = '&colour='+Math.floor(Math.random()*251)+','+Math.floor(Math.random()*251)+','+Math.floor(Math.random()*251);}
|
|---|
| 56 | if (lname != ''){lname=lname;}
|
|---|
| 57 | else {lname = 'Custom Filter';}
|
|---|
| 58 |
|
|---|
| 59 | var baseurl = "/website/tile/${z}/${x},${y}.png";
|
|---|
| 60 |
|
|---|
| 61 | OpenLayers.Layer.OSM.Overlay = OpenLayers.Class(OpenLayers.Layer.OSM, {
|
|---|
| 62 | initialize: function(name, options) {
|
|---|
| 63 | var url = [
|
|---|
| 64 | baseurl + "?" + colour + user + dataset + wlnode + enc + date
|
|---|
| 65 | ];
|
|---|
| 66 | options = OpenLayers.Util.extend({ numZoomLevels: 21 }, options);
|
|---|
| 67 | var newArguments = [name, url, options];
|
|---|
| 68 | OpenLayers.Layer.OSM.prototype.initialize.apply(this, newArguments);
|
|---|
| 69 | },
|
|---|
| 70 | CLASS_NAME: "OpenLayers.Layer.Overlay"
|
|---|
| 71 | });
|
|---|
| 72 |
|
|---|
| 73 | filterlayer = new OpenLayers.Layer.OSM.Overlay(lname, {isBaseLayer: false, visibility: true});
|
|---|
| 74 | map.addLayer(filterlayer);
|
|---|
| 75 | }
|
|---|
