}
marker层，扩展vector层，通过point和style达到marker的效果
1 $package("com.bct.map");
2 $import("com.bct.map.EncoderMarkerStyle");
3 com.bct.map.MarkerVectorLayer = OpenLayers.Class(OpenLayers.Layer.Vector,{
4 /**
5 * parameters
6 * attribute filer对象
7 */
8 getFeatureByAttribute :function(attributes){
9 var feature = null;
10 for(var i=0;i<this.features.length; ++i){
11 var attri = this.features[i].attributes;
12 var find = false;
13 for(var j in attributes){
14 if(attributes[j] == attri[j]){
15 find = true;
16 }
17 }
18 if(find){
19 return this.features[i];
20 }
21 }
22
23 },
24 addEncorderFeature:function(encNode,location){
25 if(encNode&&this.repetitiveCheck(encNode.id)){
26 return;
27 }
28 var attributes = OpenLayers.Util.extend({}, encNode.attributes);
29 var enc_point = new OpenLayers.Geometry.Point(location.lon,location.lat);
30 var enc_Feature = new OpenLayers.Feature.Vector(enc_point,attributes,com.bct.map.EncoderMarkerStyle['smallEncoder']);
31 this.addFeatures([enc_Feature]);
32 if(encNode.attributes['lon']&&encNode.attributes['lat']&&encNode.attributes['lon'].length>0){
33 return;
34 }
35 this.updateChannel(encNode.id,location.lon,location.lat);
36 },
37 addDeptFeature:function(deptNode,location){
38 if(deptNode&&this.repetitiveCheck(deptNode.id)){
39 return;
40 }
41 var attributes = OpenLayers.Util.extend({}, deptNode.attributes);
42 var enc_point = new OpenLayers.Geometry.Point(location.lon,location.lat);
43 var enc_Feature = new OpenLayers.Feature.Vector(enc_point,attributes,com.bct.map.EncoderMarkerStyle['smallEncoder']);
44
45 this.addFeatures([enc_Feature]);
46
47 },
48 repetitiveCheck:function(entity_id){
49 if(this.getFeatureByAttribute({id:entity_id})){
50 return true;
51 }
52 return false;
53 },
54 updateChannel:function(channel_id,lon,lat){
55 Ext.Ajax.request({
56 url: 'deviceVideoEncoder.do?method=updateLonlat&id='+channel_id+"&lon="+lon+"&lat="+lat
57 });
58 },
59 channelMarkerClick:function() {
60 var features = this.selectedFeatures;
61 if(features.length >=0&&features[0]) {
62 feature = features[0];
63 var treeNodeAttribute = feature.attributes;
64 var vedioPopForm = new Ext.FormPanel({
65 frame:true,
66 labelAlign: 'top',
67 bodyStyle:'padding:5px',
68 width: 400,
69 height:200,
70 layout: 'fit',
71 items:[{
72 xtype:'fieldset',
73 title: '摄像头信息',
74 autoHeight:true,
75 autoWidth:true,
76 html:"<p><font color='red' size='2'>名称:"+treeNodeAttribute['text']
77 +"</font></p><p><font color='red' size='2'>通道号:"+treeNodeAttribute['channelNumber']
78 +"</font></p><p><font color='red' size='2'>设备名称:"+treeNodeAttribute['deviceunitName']
79 +"</font></p><p><font color='red' size='2'>所属部门:"+treeNodeAttribute['deptName']
80 +"</font></p><p><font color='red' size='2'>经纬度:"+treeNodeAttribute['lon']+","+treeNodeAttribute['lat']
81 }]
82 });
83 var win = new Ext.Window({
84 width : 420,
85 height: 220,
86 items : vedioPopForm
87 });
88 win.show();
89 }
90 },
91 cartoonFeature :function(feature){
92 this.drawFeature(feature,com.bct.map.EncoderMarkerStyle['bigEncoder']);
93 var runner = new Ext.util.TaskRunner(1000);
94 var task = {
95 run:this.drawFeature,
96 scope:this,
97 args:[feature,com.bct.map.EncoderMarkerStyle['smallEncoder']],
98 interval: 1000
99 }
100 runner.start(task);
101 },
102 removeSelectFeature:function(){
103 var features = this.selectedFeatures;
104 for(var i=features.length-1; i>=0; i--) {
105 feature = features[i];
106 this.updateChannel(feature.attributes['id'],"","");
107 }
108 this.destroyFeatures(this.selectedFeatures);
109 },
110 monitorSelectFeature:function(){
111 var features = this.selectedFeatures;
112 if(features.length >=0&&features[0]) {
113 feature = features[0];
114 var treeNodeAttribute = feature.attributes;
115 var objId="mapAVShow"+treeNodeAttribute['id'];
116 var win = new Ext.Window({
117 width : 420,
118 height: 420,
119 html:"<div id='mapEncoder' width='100%' height='100%'><object width='100%' height='100%' id='"+objId+"' classid='clsid:574B47E8-A366-4AB9-B2EA-57F145CA3780'></object></div>"
120 });
121 win.show();
122 Ext.lib.Ajax.request('GET','channel.do?method=getSiteId&accept=json&id='+treeNodeAttribute['id'],
123 {success: function(o){
124 var encoderObj;
125 encoderObj=Ext.util.JSON.decode(o.responseText);
126 $import("com.bct.monitor.mapAVShow");
127 var avshowObj=document.getElementById(objId);
128 var avshow=new com.bct.monitor.mapAVShow(avshowObj,
129 encoderObj[0].siteId,encoderObj[0].enCoderId,encoderObj[0].diveceUnitTypeId,'');
130 avshow.startVideo();
131 win.on("destroy",function del(){
132 avshow.stopVideo();
133 });
134 }
135 });
136 }
137 }
138 });