02_getFeatureByBounds.html 2.9 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_getFeatureByBounds"></title>
  9. <script type="text/javascript" src="../js/include-web.js"></script>
  10. <script type="text/javascript" src="../../dist/ol/include-ol.js"></script>
  11. </head>
  12. <body style=" margin: 0;overflow: hidden;background: #fff;width: 100%;height:100%; position: absolute;top: 0;">
  13. <div id="map" style="width: 100%;height:100%"></div>
  14. <script type="text/javascript">
  15. var map, vectorLayer, resultLayer,
  16. baseUrl = (window.isLocal ? window.server : "https://iserver.supermap.io")+"/iserver/services/map-world/rest/maps/World",
  17. url = (window.isLocal ? window.server : "https://iserver.supermap.io")+"/iserver/services/data-world/rest/data";
  18. map = new ol.Map({
  19. target: 'map',
  20. controls: ol.control.defaults({attributionOptions: {collapsed: false}})
  21. .extend([new ol.supermap.control.Logo()]),
  22. view: new ol.View({
  23. center: [-10, 15],
  24. zoom: 3,
  25. projection: 'EPSG:4326',
  26. multiWorld: true
  27. })
  28. });
  29. var layer = new ol.layer.Tile({
  30. source: new ol.source.TileSuperMapRest({
  31. url: baseUrl
  32. }),
  33. projection: 'EPSG:4326'
  34. });
  35. map.addLayer(layer);
  36. query();
  37. function query() {
  38. //添加查询区域
  39. var polygon = new ol.geom.Polygon([[[-20, 20], [-20, -20], [20, -20], [20, 20], [-20, 20]]]);
  40. var polygonSource = new ol.source.Vector({
  41. features: [new ol.Feature(polygon)],
  42. wrapX: false
  43. });
  44. vectorLayer = new ol.layer.Vector({
  45. source: polygonSource,
  46. style: new ol.style.Style({
  47. stroke: new ol.style.Stroke({
  48. color: 'red',
  49. width: 3
  50. }),
  51. fill: new ol.style.Fill({
  52. color: 'rgba(0, 0, 255, 0.1)'
  53. })
  54. })
  55. });
  56. map.addLayer(vectorLayer);
  57. //创建集Bounds查询服务
  58. var boundsParam = new SuperMap.GetFeaturesByBoundsParameters({
  59. datasetNames: ["World:Capitals"],
  60. bounds: polygon.getExtent()
  61. });
  62. new ol.supermap.FeatureService(url).getFeaturesByBounds(boundsParam, function (serviceResult) {
  63. var vectorSource = new ol.source.Vector({
  64. features: (new ol.format.GeoJSON()).readFeatures(serviceResult.result.features),
  65. wrapX: false
  66. });
  67. resultLayer = new ol.layer.Vector({
  68. source: vectorSource
  69. });
  70. map.addLayer(resultLayer);
  71. });
  72. }
  73. </script>
  74. </body>
  75. </html>