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polygon_buffer.html 1.5KB

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  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. <meta charset="utf-8">
  5. <meta name="viewport" content="width=device-width,initial-scale=1.0">
  6. <title>dc-example</title>
  7. <script src='/libs/dc-sdk/dc.min.js'></script>
  8. <script src='../turf.min.js'></script>
  9. <link href='/libs/dc-sdk/dc.min.css' type='text/css' rel='stylesheet'>
  10. <link href='../index.css' type='text/css' rel='stylesheet'>
  11. </head>
  12. <body>
  13. <div id="viewer-container" class="viewer-container"></div>
  14. <script>
  15. let viewer = undefined
  16. function initViewer() {
  17. viewer = new DC.Viewer('viewer-container')
  18. let baseLayer = DC.ImageryLayerFactory.createImageryLayer(DC.ImageryType.AMAP,{
  19. style:'img',
  20. crs:'WGS84'
  21. })
  22. viewer.addBaseLayer( baseLayer)
  23. let layer = new DC.VectorLayer('layer')
  24. viewer.addLayer(layer)
  25. let polygon = new DC.Polygon("120.71259021075333,31.22148081085083;120.71611354431036,31.221447256684566;120.7140691869497,31.21875584696343")
  26. polygon.setStyle({
  27. zIndex:1,
  28. material:DC.Color.YELLOW
  29. })
  30. layer.addOverlay(polygon)
  31. let coords = DC.GeoTools.polygonBuffer("120.71259021075333,31.22148081085083;120.71611354431036,31.221447256684566;120.7140691869497,31.21875584696343",150)
  32. let buffer = new DC.Polygon(coords)
  33. buffer.setStyle({
  34. material:DC.Color.RED.withAlpha(0.4)
  35. })
  36. layer.addOverlay(buffer)
  37. viewer.flyTo(layer)
  38. }
  39. DC.ready({
  40. baseUrl:'../libs/dc-sdk/resources/',
  41. turf:window.turf
  42. }).then(initViewer)
  43. </script>
  44. </body>
  45. </html>