04_terrainCurvatureCalculationService.html 4.6 KB

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  1. <!--********************************************************************
  2. * Copyright© 2000 - 2021 SuperMap Software Co.Ltd. All rights reserved.
  3. *********************************************************************-->
  4. <!DOCTYPE html>
  5. <html>
  6. <head>
  7. <meta charset="UTF-8">
  8. <title data-i18n="resources.title_terrainCurvatureCalculation"></title>
  9. <script type="text/javascript" src="../js/include-web.js"></script>
  10. </head>
  11. <body style=" margin: 0;overflow: hidden;background: #fff;width: 100%;height:100%;position: absolute;top: 0;">
  12. <div id="map" style="margin:0 auto;width: 100%;height: 100%"></div>
  13. <script type="text/javascript" src="../../dist/leaflet/include-leaflet.js"></script>
  14. <script type="text/javascript">
  15. var host = window.isLocal ? window.server : "https://iserver.supermap.io";
  16. var map, terrainCurvatureCalculationService, terrainCurvatureCalculationParameters, terrainCurvatureCalculationResult,
  17. themeService, themeGridRange, themeParameters, themeLayer,
  18. baseUrl = host + "/iserver/services/map-jingjin/rest/maps/京津地区地图",
  19. serviceUrl = host + "/iserver/services/spatialanalyst-sample/restjsr/spatialanalyst";
  20. map = L.map('map', {
  21. crs: L.CRS.EPSG4326,
  22. center: [39.79, 116.85],
  23. maxZoom: 18,
  24. zoom: 6
  25. });
  26. L.supermap.tiledMapLayer(baseUrl, {noWrap: true}).addTo(map).once("load", function () {
  27. terrainCurvatureCalculationProcess();
  28. });
  29. function terrainCurvatureCalculationProcess() {
  30. //创建地形曲率计算服务实例
  31. terrainCurvatureCalculationService = L.supermap.spatialAnalystService(serviceUrl);
  32. //创建地形曲率计算参数实例
  33. terrainCurvatureCalculationParameters = new SuperMap.TerrainCurvatureCalculationParameters({
  34. dataset: "JingjinTerrain@Jingjin",
  35. zFactor: 1.0,
  36. averageCurvatureName: "CurvatureA",
  37. deleteExistResultDataset: true
  38. });
  39. //向iServer发起地形曲率计算请求
  40. terrainCurvatureCalculationService.terrainCurvatureCalculate(terrainCurvatureCalculationParameters, function (serviceResult) {
  41. terrainCurvatureCalculationResult = serviceResult.result;
  42. //用栅格专题图展示分析结果
  43. showAnalysisResult_ThemeGridRange();
  44. });
  45. }
  46. function showAnalysisResult_ThemeGridRange() {
  47. themeService = L.supermap.themeService(baseUrl);
  48. var themeGridRangeIteme1 = new SuperMap.ThemeGridRangeItem({
  49. start: -9000000,
  50. end: -1000,
  51. color: new SuperMap.ServerColor(0, 0, 255)
  52. }),
  53. themeGridRangeIteme2 = new SuperMap.ThemeGridRangeItem({
  54. start: -1000,
  55. end: -1,
  56. color: new SuperMap.ServerColor(0, 0, 125)
  57. }),
  58. themeGridRangeIteme3 = new SuperMap.ThemeGridRangeItem({
  59. start: -1,
  60. end: 1,
  61. color: new SuperMap.ServerColor(0, 125, 125)
  62. }),
  63. themeGridRangeIteme4 = new SuperMap.ThemeGridRangeItem({
  64. start: 1,
  65. end: 1000,
  66. color: new SuperMap.ServerColor(0, 125, 0)
  67. }),
  68. themeGridRangeIteme5 = new SuperMap.ThemeGridRangeItem({
  69. start: 1000,
  70. end: 20000000,
  71. color: new SuperMap.ServerColor(0, 255, 0)
  72. });
  73. themeGridRange = new SuperMap.ThemeGridRange({
  74. reverseColor: false,
  75. rangeMode: SuperMap.RangeMode.EQUALINTERVAL,
  76. //栅格分段专题图子项数组
  77. items: [themeGridRangeIteme1,
  78. themeGridRangeIteme2,
  79. themeGridRangeIteme3,
  80. themeGridRangeIteme4,
  81. themeGridRangeIteme5
  82. ]
  83. });
  84. themeParameters = new SuperMap.ThemeParameters({
  85. //制作专题图的数据集(地形曲率计算的结果数据集)
  86. datasetNames: [terrainCurvatureCalculationResult.averageCurvatureResult.dataset.split('@')[0]],
  87. dataSourceNames: ["Jingjin"],
  88. joinItems: null,
  89. themes: [themeGridRange]
  90. });
  91. themeService.getThemeInfo(themeParameters, function (serviceResult1) {
  92. var result = serviceResult1.result;
  93. if (result && result.newResourceID) {
  94. themeLayer = L.supermap.tiledMapLayer(baseUrl, {
  95. noWrap: true,
  96. cacheEnabled: false,
  97. transparent: true,
  98. layersID: result.newResourceID
  99. }).addTo(map);
  100. }
  101. })
  102. }
  103. </script>
  104. </body>
  105. </html>