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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_densityAnalystService"></title>
- <style type="text/css">
- body {
- margin: 0;
- overflow: hidden;
- background: #fff;
- width: 100%;
- height: 100%
- }
- #map {
- position: absolute;
- width: 100%;
- height: 100%;
- }
- #toolbar {
- position: absolute;
- top: 50px;
- right: 10px;
- text-align: center;
- z-index: 100;
- border-radius: 4px;
- }
- </style>
- </head>
- <body>
- <div id="toolbar" class="panel panel-primary">
- <div class='panel-heading'>
- <h5 class='panel-title text-center' data-i18n="resources.text_densityAnalystService"></h5></div>
- <div class='panel-body content'>
- <input type="button" class="btn btn-default" data-i18n="[value]resources.text_input_value_densityAnalyst" onclick="addResultLayer()"/>
- <input type="button" class="btn btn-default" data-i18n="[value]resources.text_input_value_removeTheme" onclick="removeTheme()"/>
- </div>
- </div>
- <div id="map"></div>
- <script type="text/javascript" include="bootstrap,widgets.alert" src="../js/include-web.js"></script>
- <script type="text/javascript" exclude="iclient-classic" src="../../dist/classic/include-classic.js"></script>
- <script>
- var map, baseLayer, resultLayer,
- host = window.isLocal ? window.server : "https://iserver.supermap.io",
- url = host + "/iserver/services/map-changchun/rest/maps/长春市区图",
- url2 = host + "/iserver/services/spatialanalyst-changchun/restjsr/spatialanalyst";
- init();
- function init() {
- map = new SuperMap.Map("map", {
- controls: [
- new SuperMap.Control.ScaleLine(),
- new SuperMap.Control.PanZoomBar(),
- new SuperMap.Control.Navigation({
- dragPanOptions: {
- enableKinetic: true
- }
- })]
- });
- map.addControl(new SuperMap.Control.LayerSwitcher(), new SuperMap.Pixel(58, 150));
- //将“长春市区图”置为底图
- baseLayer = new SuperMap.Layer.TiledDynamicRESTLayer("长春市区图", url, {
- transparent: true,
- cacheEnabled: true
- }, {maxResolution: "auto"});
- baseLayer.events.on({"layerInitialized": addBaseLayer});
- }
- function addBaseLayer() {
- map.addLayer(baseLayer);
- map.setCenter(new SuperMap.LonLat(5800, -3000), 2);
- map.allOverlays = true;
- }
- function addResultLayer() {
- widgets.alert.clearAlert();
- //移除核密度分析的结果专题图层
- removeTheme();
- //创建一个核密度分析服务实例
- var densityAnalystService = new SuperMap.REST.DensityAnalystService(url2, {
- eventListeners: {
- "processCompleted": KernelAnalystCompleted,
- "processFailed": KernelAnalystFailed
- }
- });
- //创建一个核密度分析参数示例
- var densityKernelAnalystParameters = new SuperMap.REST.DensityKernelAnalystParameters({
- //指定数据集
- dataset: "Railway@Changchun",
- //指定范围
- bounds: new SuperMap.Bounds(3800, -3800, 8200, -2200),
- //指定数据集中用于核密度分析的字段
- fieldName: "SmLength",
- searchRadius: 50, //Railway@Changchun的单位是米
- //结果数据集名称
- resultGridName: "KernelDensity_Result",
- deleteExistResultDataset: true
- });
- densityAnalystService.processAsync(densityKernelAnalystParameters);
- }
- //用栅格专题图展示分析结果
- function KernelAnalystCompleted(densityKernelAnalysEventArgs) {
- var color1 = new SuperMap.REST.ServerColor(255, 212, 170),
- color2 = new SuperMap.REST.ServerColor(255, 127, 0),
- color3 = new SuperMap.REST.ServerColor(191, 95, 0),
- color4 = new SuperMap.REST.ServerColor(255, 0, 0),
- color5 = new SuperMap.REST.ServerColor(191, 0, 0),
- themeGridRangeIteme1 = new SuperMap.REST.ThemeGridRangeItem({
- start: 0,
- end: 0.05,
- color: color1
- }),
- themeGridRangeIteme2 = new SuperMap.REST.ThemeGridRangeItem({
- start: 0.05,
- end: 5,
- color: color2
- }),
- themeGridRangeIteme3 = new SuperMap.REST.ThemeGridRangeItem({
- start: 5,
- end: 10,
- color: color3
- }),
- themeGridRangeIteme4 = new SuperMap.REST.ThemeGridRangeItem({
- start: 10,
- end: 100,
- color: color4
- }),
- themeGridRangeIteme5 = new SuperMap.REST.ThemeGridRangeItem({
- start: 100,
- end: 360,
- color: color5
- }),
- themeGridRange = new SuperMap.REST.ThemeGridRange({
- reverseColor: false,
- rangeMode: SuperMap.REST.RangeMode.EQUALINTERVAL,
- //栅格分段专题图子项数组
- items: [themeGridRangeIteme1,
- themeGridRangeIteme2,
- themeGridRangeIteme3,
- themeGridRangeIteme4,
- themeGridRangeIteme5
- ]
- }),
- themeParameters = new SuperMap.REST.ThemeParameters({
- //制作专题图的数据集(核密度分析的结果数据集)
- datasetNames: [densityKernelAnalysEventArgs.result.dataset.split('@')[0]],
- dataSourceNames: ["Changchun"],
- joinItems: null,
- themes: [themeGridRange],
- types: ['REGION']
- });
- var themeService = new SuperMap.REST.ThemeService(url, {
- eventListeners: {
- "processCompleted": themeCompleted,
- "processFailed": themeFailed
- }
- });
- themeService.processAsync(themeParameters);
- }
- function themeCompleted(themeEventArgs) {
- if (themeEventArgs.result.resourceInfo.id) {
- resultLayer = new SuperMap.Layer.TiledDynamicRESTLayer("核密度分析结果", url, {
- cacheEnabled: false,
- transparent: true,
- layersID: themeEventArgs.result.resourceInfo.id
- }, {"maxResolution": "auto"});
- resultLayer.events.on({"layerInitialized": addThemelayer});
- resultLayer.setOpacity(0.8);
- }
- }
- function addThemelayer() {
- //将专题图添加到地图
- map.addLayer(resultLayer);
- }
- function themeFailed(serviceFailedEventArgs) {
- widgets.alert.showAlert(serviceFailedEventArgs.error.errorMsg,false);
- }
- function KernelAnalystFailed(serviceFailedEventArgs) {
- widgets.alert.showAlert(serviceFailedEventArgs.error.errorMsg,false);
- }
- //移除专题图
- function removeTheme() {
- widgets.alert.clearAlert();
- if (map.layers.length > 1) {
- map.removeLayer(resultLayer, true);
- }
- }
- </script>
- </body>
- </html>
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