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- <!--********************************************************************
- * Copyright© 2000 - 2021 SuperMap Software Co.Ltd. All rights reserved.
- *********************************************************************-->
- <!DOCTYPE html>
- <html>
- <head>
- <meta charset="UTF-8">
- <title data-i18n="resources.title_bufferAnalystServiceGeometry"></title>
- <script type="text/javascript" src="../js/include-web.js"></script>
- <script type="text/javascript" src="../../dist/ol/include-ol.js"></script>
- </head>
- <body style=" margin: 0;overflow: hidden;background: #fff;width: 100%;height:100%; position: absolute;top: 0;">
- <div id="map" style="width: 100%;height:100%"></div>
- <script type="text/javascript">
- var map, options,
- baseUrl = (window.isLocal ? window.server : "https://iserver.supermap.io")+"/iserver/services/map-changchun/rest/maps/长春市区图",
- serviceUrl = (window.isLocal ? window.server : "https://iserver.supermap.io")+"/iserver/services/spatialanalyst-changchun/restjsr/spatialanalyst";
- var extent = [48.4, -7668.25, 8958.85, -55.58];
- var projection = new ol.proj.Projection({
- code:'',
- extent: extent,
- units: 'm'
- });
- new ol.supermap.MapService(baseUrl).getMapInfo(function (serviceResult) {
- var mapJSONObj = serviceResult.result;
- map = new ol.Map({
- target: 'map',
- controls: ol.control.defaults({attributionOptions: {collapsed: false}})
- .extend([new ol.supermap.control.Logo()]),
- view: new ol.View({
- center: [5100, -3861.911472192499],
- zoom: 2,
- projection: projection,
- multiWorld: true
- })
- });
- options = ol.source.TileSuperMapRest.optionsFromMapJSON(baseUrl, mapJSONObj);
- var layer = new ol.layer.Tile({
- source: new ol.source.TileSuperMapRest(options)
- });
- map.addLayer(layer);
- geoBufferAnalystProcess();
- });
- function geoBufferAnalystProcess() {
- var pointsList = [
- [2823.940, -4690.000],
- [3448.940, -4690.301],
- [3816.561, -3810.125],
- [3917.383, -3609.158],
- [3976.983, -3490.291],
- [4020.004, -4377.027],
- [4076.265, -4382.939],
- [4215.049, -4382.333],
- [4428.156, -4382.285],
- [4647.579, -4383.017],
- [4679.707, -4382.898],
- [4917.462, -4382.635],
- [5074.019, -4381.833],
- [5257.042, -4381.031],
- [5363.785, -4380.717],
- [5671.717, -4378.794],
- [5847.521, -4377.970],
- [5990.637, -4303.528],
- [6055.343, -4270.072],
- [6168.913, -4382.389],
- [6214.183, -4209.927],
- [6377.789, -4209.142],
- [6393.692, -4210.142],
- [6693.989, -4207.450],
- [6788.392, -4208.450],
- [6984.304, -4207.210],
- [7189.183, -4208.296],
- [7300.505, -4208.296],
- [7573.056, -4208.803],
- [7680.977, -4208.804],
- [7850.593, -4208.393],
- [8182.656, -4210.533],
- [8554.893, -4261.485]
- ];
- //在所有离散gps信号点添加到地图上
- for (i = 0; i < pointsList.length; i++) {
- var point = new ol.Feature({
- geometry: new ol.geom.Point(pointsList[i])
- });
- var pointLayer = new ol.layer.Vector({
- source: new ol.source.Vector({
- features: [point]
- }),
- style: new ol.style.Style({
- image: new ol.style.Circle({
- radius: 4,
- fill: new ol.style.Fill({
- color: 'black'
- })
- })
- })
- });
- map.addLayer(pointLayer);
- }
- //将由离散gps信号点生成的线路添加到地图上
- var roadLine = new ol.geom.LineString(pointsList);
- var roadLineSource = new ol.source.Vector({
- features: [new ol.Feature(roadLine)]
- });
- var roadLineLayer = new ol.layer.Vector({
- source: roadLineSource,
- style: new ol.style.Style({
- stroke: new ol.style.Stroke({
- color: 'red',
- width: 3
- })
- })
- });
- map.addLayer(roadLineLayer);
- //创建缓冲区分析服务参数
- geoBufferAnalystParams = new SuperMap.GeometryBufferAnalystParameters({
- sourceGeometry: roadLine,
- bufferSetting: new SuperMap.BufferSetting({
- endType: SuperMap.BufferEndType.ROUND,
- leftDistance: new SuperMap.BufferDistance({value: 250}),
- rightDistance: new SuperMap.BufferDistance({value: 250}),
- semicircleLineSegment: 10
- })
- });
- //向iServer发送请求并返回结果
- new ol.supermap.SpatialAnalystService(serviceUrl).bufferAnalysis(geoBufferAnalystParams, function (serviceResult) {
- var bufferSource = new ol.source.Vector({
- features: (new ol.format.GeoJSON()).readFeatures(serviceResult.result.resultGeometry)
- });
- var resultLayer = new ol.layer.Vector({
- source: bufferSource,
- style: new ol.style.Style({
- stroke: new ol.style.Stroke({
- color: 'blue',
- width: 1
- }),
- fill: new ol.style.Fill({
- color: 'rgba(255, 0, 0, 0.1)'
- })
- })
- });
- map.addLayer(resultLayer);
- //将组成缓冲区的边界点提出来,为了构造下面查询服务的geometry
- var bufferPoints = [];
- var coordinate = serviceResult.result.resultGeometry.geometry.coordinates[0][0];
- for (var i = 0; i < coordinate.length; i++) {
- bufferPoints.push([coordinate[i][0], coordinate[i][1]]);
- }
- var geometry = new ol.geom.Polygon([bufferPoints]);
- queryByGeometryParameters = new SuperMap.QueryByGeometryParameters({
- queryParams: [new SuperMap.FilterParameter({name: "Company@Changchun.2"})],
- geometry: geometry,
- spatialQueryMode: SuperMap.SpatialQueryMode.INTERSECT
- });
- new ol.supermap.QueryService(baseUrl).queryByGeometry(queryByGeometryParameters, function (serviceResult) {
- var features = (new ol.format.GeoJSON()).readFeatures(serviceResult.result.recordsets[0].features);
- var iconStyle = new ol.style.Style({
- image: new ol.style.Icon(({
- anchor: [0.5, 1],
- src: '../img/marker-gold.png'
- }))
- });
- for (var i = 0; i < features.length; i++) {
- features[i].setStyle(iconStyle);
- }
- var vectorSource = new ol.source.Vector({
- features: features
- });
- var resultLayer1 = new ol.layer.Vector({
- source: vectorSource
- });
- map.addLayer(resultLayer1);
- });
- });
- }
- </script>
- </body>
- </html>
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