vizLayer_utfGridLayerFlags.html 4.2 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_utfGridLayerFlags"></title>
  9. <script type="text/javascript" include="bootstrap" src="../js/include-web.js"></script>
  10. <script type="text/javascript" exclude="iclient-classic" src="../../dist/classic/include-classic.js"></script>
  11. <style type="text/css">
  12. body {
  13. margin: 0;
  14. overflow: hidden;
  15. background: #fff;
  16. width: 100%;
  17. height: 100%
  18. }
  19. #map {
  20. position: absolute;
  21. width: 100%;
  22. height: 100%;
  23. }
  24. </style>
  25. </head>
  26. <body>
  27. <div id="flagContainer"
  28. style="position: absolute;width: 150px;height: 120px;top: 10px;left: 45px;text-align: center;display: none; z-index: 100;">
  29. <img id="flag" style="position: relative;height: 100px;width: 150px"
  30. onerror="this.src='./images/flags/noflag.png'"/>
  31. <div id="flagName" style="position: relative;height: 20px;width: 150px;background-color: #e5f3ff"></div>
  32. </div>
  33. <div id="map"></div>
  34. <script>
  35. var map, layer;
  36. var host = window.isLocal ? window.server : "https://iserver.supermap.io",
  37. url = host + "/iserver/services/map-world/rest/maps/世界地图_Day";
  38. var control, utfgrid, infowin, flagImg, flagName, flagContainer;
  39. init();
  40. function init() {
  41. flagImg = document.getElementById("flag");
  42. flagName = document.getElementById("flagName");
  43. flagContainer = document.getElementById("flagContainer");
  44. map = new SuperMap.Map("map", {
  45. controls: [
  46. new SuperMap.Control.ScaleLine(),
  47. new SuperMap.Control.Zoom(),
  48. new SuperMap.Control.LayerSwitcher(),
  49. new SuperMap.Control.Navigation({
  50. dragPanOptions: {
  51. enableKinetic: true
  52. }
  53. })],
  54. projection: "EPSG:4326"
  55. });
  56. layer = new SuperMap.Layer.TiledDynamicRESTLayer("世界地图", url, {transparent: true}, {
  57. useCanvas: true,
  58. maxResolution: "auto"
  59. });
  60. utfgrid = new SuperMap.Layer.UTFGrid("UTFGridLayer", url,
  61. {
  62. layerName: "Countries@World",
  63. utfTileSize: 256,
  64. pixcell: 8,
  65. isUseCache: false
  66. },
  67. {
  68. utfgridResolution: 8
  69. });
  70. control = new SuperMap.Control.UTFGrid({
  71. layers: [utfgrid],
  72. callback: function (infoLookup) {
  73. if (infoLookup) {
  74. for (var index in infoLookup) {
  75. var info = infoLookup[index];
  76. /*如果callback传回了数据,则利用数据中的国家名来设置img的src属性,并设置flagName的innerHTML属性*/
  77. if (info && info.data) {
  78. var name = escape(info.data.COUNTRY).replace(/%u/g, "_u").replace(/%20/g, "");
  79. flagImg.src = "images/flags/" + name + ".png"; //假如在flags文件夹中没有找到对应的国旗图片,则将会触发img的onerror事
  80. flagName.innerHTML = info.data.COUNTRY;
  81. flagContainer.style.display = "block";
  82. }
  83. /*如果没传回数据,例如鼠标移到了对应海洋的地方时,将没有对应的数据,这时则把img和用来显示国家名div隐藏进来*/
  84. else {
  85. flagContainer.style.display = "none";
  86. }
  87. }
  88. }
  89. },
  90. /*注册utfgrid图层上的鼠标移动事件*/
  91. handlerMode: "move"
  92. });
  93. map.addControl(control);
  94. layer.events.on({"layerInitialized": addLayer});
  95. }
  96. function addLayer() {
  97. var center = new SuperMap.LonLat(0, 0);
  98. map.addLayers([layer, utfgrid]);
  99. map.setCenter(center, 0);
  100. }
  101. </script>
  102. </body>
  103. </html>