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<!DOCTYPE>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>缓冲区分析二</title>
<style type="text/css">
body{
margin: 0;
overflow: hidden;
background: #fff;
}
#map{
position: relative;
height: 510px;
border:1px solid #3473b7;
}
#toolbar {
position: relative;
padding-top: 5px;
padding-bottom: 10px;
}
</style>
<link href='./css/bootstrap.min.css' rel='stylesheet' />
<link href='./css/bootstrap-responsive.min.css' rel='stylesheet' />
<script src='../libs/SuperMap.Include.js'></script>
<script type="text/javascript">
var host = document.location.toString().match(/file:\/\//)?"http://localhost:8090":'http://' + document.location.host;
var spatialAnalystURL, local, map, layer, vectorLayer, resultLayer, markerLayer, gpsLine, bufferResultGeometry,
myPointsList = [new SuperMap.Geometry.Point(2823.940, -4690.000),
new SuperMap.Geometry.Point(3448.940, -4690.301),
new SuperMap.Geometry.Point(3816.561, -3810.125),
new SuperMap.Geometry.Point(3917.383, -3609.158),
new SuperMap.Geometry.Point(3976.983, -3490.291),
new SuperMap.Geometry.Point(4020.004, -4377.027),
new SuperMap.Geometry.Point(4076.265, -4382.939),
new SuperMap.Geometry.Point(4215.049, -4382.333),
new SuperMap.Geometry.Point(4428.156, -4382.285),
new SuperMap.Geometry.Point(4647.579, -4383.017),
new SuperMap.Geometry.Point(4679.707, -4382.898),
new SuperMap.Geometry.Point(4917.462, -4382.635),
new SuperMap.Geometry.Point(5074.019, -4381.833),
new SuperMap.Geometry.Point(5257.042, -4381.031),
new SuperMap.Geometry.Point(5363.785, -4380.717),
new SuperMap.Geometry.Point(5671.717, -4378.794),
new SuperMap.Geometry.Point(5847.521, -4377.970),
new SuperMap.Geometry.Point(5990.637, -4303.528),
new SuperMap.Geometry.Point(6055.343, -4270.072),
new SuperMap.Geometry.Point(6168.913, -4382.389),
new SuperMap.Geometry.Point(6214.183, -4209.927),
new SuperMap.Geometry.Point(6377.789, -4209.142),
new SuperMap.Geometry.Point(6393.692, -4210.142),
new SuperMap.Geometry.Point(6693.989, -4207.450),
new SuperMap.Geometry.Point(6788.392, -4208.450),
new SuperMap.Geometry.Point(6984.304, -4207.210),
new SuperMap.Geometry.Point(7189.183, -4208.296),
new SuperMap.Geometry.Point(7300.505, -4208.296),
new SuperMap.Geometry.Point(7573.056, -4208.803),
new SuperMap.Geometry.Point(7680.977, -4208.804),
new SuperMap.Geometry.Point(7850.593, -4208.393),
new SuperMap.Geometry.Point(8182.656, -4210.533),
new SuperMap.Geometry.Point(8554.893, -4261.485)],
myFeatures = [],
stylePoint = {
strokeColor: "black",
strokeOpacity: 1,
strokeDashstyle: "solid",
fillColor: "black",
pointRadius: 2
},
styleLine = {
strokeColor: "red",
strokeWidth: 2,
pointRadius: 3,
pointerEvents: "visiblePainted",
fill: false
},
styleRegion = {
strokeColor: "#304DBE",
strokeWidth: 2,
pointerEvents: "visiblePainted",
fillColor: "#304DBE",
fillOpacity: 0.4
},
url=host+"/iserver/services/map-changchun/rest/maps/长春市区图",
url2=host+"/iserver/services/spatialanalyst-changchun/restjsr/spatialanalyst";
function init(){
vectorLayer = new SuperMap.Layer.Vector("Vector Layer");
resultLayer = new SuperMap.Layer.Vector("Result Layer");
markerLayer = new SuperMap.Layer.Markers("Markers Layer");
map = new SuperMap.Map("map",{controls: [
new SuperMap.Control.LayerSwitcher(),
new SuperMap.Control.ScaleLine(),
new SuperMap.Control.Zoom(),
new SuperMap.Control.Navigation({
dragPanOptions: {
enableKinetic: true
}
})], units: "m"
});
layer = new SuperMap.Layer.TiledDynamicRESTLayer("Changchun", url, {transparent: true, cacheEnabled: true}, {maxResolution: "auto"});
layer.events.on({"layerInitialized":addLayer});
for (var i = 0; i < myPointsList.length; i++){
myFeature = new SuperMap.Feature.Vector();
myFeature.geometry = myPointsList[i];
myFeature.style = stylePoint;
myFeatures.push(myFeature);
}
vectorLayer.addFeatures(myFeatures);
}
function addLayer() {
map.addLayers([layer, vectorLayer, resultLayer, markerLayer]);
map.setCenter(new SuperMap.LonLat(4503.6240321526, -3861.911472192499), 0);
}
//将离散gps信号点生成线路
function addPath(){
var pathFeature= new SuperMap.Feature.Vector();
gpsLine = new SuperMap.Geometry.LineString(myPointsList);
pathFeature.geometry = gpsLine;
pathFeature.style = styleLine;
resultLayer.addFeatures(pathFeature);
}
//对生成的线路进行缓冲区分析
function bufferAnalystProcess() {
if(!gpsLine){
alert("请生成路径，用于缓冲区分析");
return;
}
var bufferServiceByGeometry = new SuperMap.REST.BufferAnalystService(url2),
bufferDistance = new SuperMap.REST.BufferDistance({
value: 250
}),
bufferSetting = new SuperMap.REST.BufferSetting({
endType: SuperMap.REST.BufferEndType.ROUND,
leftDistance: bufferDistance,
rightDistance: bufferDistance,
semicircleLineSegment: 10
}),
geoBufferAnalystParam = new SuperMap.REST.GeometryBufferAnalystParameters({
sourceGeometry: gpsLine,
bufferSetting: bufferSetting
});
bufferServiceByGeometry.events.on(
{
"processCompleted": bufferAnalystCompleted
});
bufferServiceByGeometry.processAsync(geoBufferAnalystParam);
}
function bufferAnalystCompleted(BufferAnalystEventArgs) {
var feature = new SuperMap.Feature.Vector();
bufferResultGeometry = BufferAnalystEventArgs.result.resultGeometry;
feature.geometry = bufferResultGeometry;
feature.style = styleRegion;
resultLayer.addFeatures(feature);
}
//查询出信号影响范围内的工厂
function queryByGeometry(){
if(!bufferResultGeometry){
alert("请先做缓冲区分析，以得到查询的范围");
return;
}
var queryParam, queryByGeometryParameters, queryService;
queryParam = new SuperMap.REST.FilterParameter({name: "Company@Changchun.2"});
queryByGeometryParameters = new SuperMap.REST.QueryByGeometryParameters({
queryParams: [queryParam],
geometry: bufferResultGeometry,
spatialQueryMode: SuperMap.REST.SpatialQueryMode.INTERSECT
});
queryService = new SuperMap.REST.QueryByGeometryService(url);
queryService.events.on(
{
"processCompleted": queryCompleted
});
queryService.processAsync(queryByGeometryParameters);
}
function queryCompleted(queryEventArgs) {
var i, j, result = queryEventArgs.result;
if (result && result.recordsets) {
for (i=0, recordsets=result.recordsets, len=recordsets.length; i<len; i++) {
if (recordsets[i].features) {
for (j=0; j<recordsets[i].features.length; j++) {
var point = recordsets[i].features[j].geometry,
size = new SuperMap.Size(44,40),
offset = new SuperMap.Pixel(-(size.w/2), -size.h),
icon = new SuperMap.Icon("../theme/images/marker-gold.png", size, offset);
markerLayer.addMarker(new SuperMap.Marker(new SuperMap.LonLat(point.x, point.y), icon));
}
}
}
}
}
function clearElements() {
gpsLine=null;
bufferResultGeometry=null;
resultLayer.removeAllFeatures();
markerLayer.clearMarkers();
}
</script>
</head>
<body onload="init()">
<div id="toolbar">
<input type="button" class="btn" value="生成路径" onclick="addPath()" />
<input type="button" class="btn" value="缓冲区分析" onclick="bufferAnalystProcess()" />
<input type="button" class="btn" value="查询" onclick="queryByGeometry()" />
<input type="button" class="btn" value="移除结果" onclick="clearElements()" />
</div>
<div id="map"></div>
</body>
</html>
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