mvtvectorlayer_mbstyle_landuse.html 4.0 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_mvtVectorLayer_mapboxStyle_landuse"></title>
  9. <script type="text/javascript" include='ol-mapbox-style,proj4' src="../../dist/ol/include-ol.js"></script>
  10. <style>
  11. .ol-popup {
  12. position: absolute;
  13. background-color: rgba(0, 60, 136, 0.7);
  14. filter: drop-shadow(0 1px 4px rgba(0, 0, 0, 0.2));
  15. padding: 10px;
  16. border-radius: 5px;
  17. border: 1px solid #cccccc;
  18. bottom: 20px;
  19. left: 10px;
  20. opacity: 0;
  21. transition: opacity 100ms ease-in;
  22. }
  23. </style>
  24. </head>
  25. <body style=" margin: 0;overflow: hidden;background: #fff;width: 100%;height:100%; position: absolute;top: 0;">
  26. <div id="map" style="margin:0 auto;width: 100%;height: 100%;"></div>
  27. <div id="popup" class="ol-popup">
  28. <div id="popup-content"></div>
  29. </div>
  30. <script type="text/javascript">
  31. var url = (window.isLocal ? window.server : "https://iserver.supermap.io") +
  32. "/iserver/services/map-mvt-landuse/rest/maps/landuse";
  33. proj4.defs("EPSG:2362",
  34. "+proj=tmerc +lat_0=0 +lon_0=114 +k=1 +x_0=38500000 +y_0=0 +a=6378140 +b=6356755.288157528 +units=m +no_defs "
  35. );
  36. ol.proj.proj4 && ol.proj.proj4.register(proj4);
  37. getResolutions = function (zoom, scale, targetMinZoom, targetMaxZoom) {
  38. var res = scaleToResolution(scale);
  39. var minRes = res * Math.pow(2, zoom - targetMinZoom);
  40. var resolutions = [];
  41. for (var index = 0; index < targetMaxZoom - targetMinZoom + 1; index++) {
  42. resolutions.push(minRes / Math.pow(2, index));
  43. }
  44. return resolutions;
  45. }
  46. scaleToResolution = function (scale) {
  47. var inchPerMeter = 1 / 0.0254;
  48. return 1 / (scale * 96 * inchPerMeter);
  49. };
  50. var vectorLayer;
  51. //通过缓存sci文件已知第9级的比例尺是0.00000346726346971252,计算0到16级的分辨率
  52. var resolutions = getResolutions(9, 0.00000346726346971252, 0, 16);
  53. var projection = ol.proj.get('EPSG:2362');
  54. projection.setExtent([32876993.777095847, -10001970.421227315, 52880934.619550481, 10001970.421227315])
  55. var map = new ol.Map({
  56. target: 'map',
  57. view: new ol.View({
  58. center: [37981118.1854434, 2645345.86991791],
  59. zoom: 13,
  60. minZoom: 11,
  61. maxZoom: 15,
  62. projection: projection,
  63. resolutions: resolutions
  64. })
  65. });
  66. var container = document.getElementById('popup');
  67. var content = document.getElementById('popup-content');
  68. info = new ol.control.Control({
  69. element: container
  70. });
  71. info.setMap(map);
  72. map.addControl(info);
  73. var style = new ol.supermap.MapboxStyles({
  74. map: map,
  75. url: url,
  76. // source: 'landuse',
  77. resolutions: resolutions
  78. })
  79. style.on('styleloaded', function () {
  80. vectorLayer = new ol.layer.VectorTile({
  81. //设置避让参数
  82. declutter: true,
  83. source: new ol.source.VectorTileSuperMapRest({
  84. url: url,
  85. projection: projection,
  86. tileGrid: new ol.tilegrid.TileGrid({
  87. resolutions: resolutions,
  88. origin: [32876993.777095847, 10001970.421227315],
  89. tileSize: 512
  90. }),
  91. tileType: 'ScaleXY',
  92. format: new ol.format.MVT()
  93. }),
  94. style: style.getStyleFunction()
  95. });
  96. map.addLayer(vectorLayer);
  97. })
  98. </script>
  99. </body>
  100. </html>