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polygon_buffer.html 1.6KB

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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. DC.config.baseUrl = '../libs/dc-sdk/resources/'
  16. DC.registerLib('turf', turf)
  17. let viewer = new DC.Viewer('viewer-container')
  18. let baseLayer = DC.ImageryLayerFactory.createImageryLayer(
  19. DC.ImageryType.AMAP,
  20. {
  21. style: 'img',
  22. crs: 'WGS84',
  23. }
  24. )
  25. viewer.addBaseLayer(baseLayer)
  26. let layer = new DC.VectorLayer('layer')
  27. viewer.addLayer(layer)
  28. let polygon = new DC.Polygon(
  29. '120.71259021075333,31.22148081085083;120.71611354431036,31.221447256684566;120.7140691869497,31.21875584696343'
  30. )
  31. polygon.setStyle({
  32. zIndex: 1,
  33. material: DC.Color.YELLOW,
  34. })
  35. layer.addOverlay(polygon)
  36. let coords = DC.GeoTools.polygonBuffer(
  37. '120.71259021075333,31.22148081085083;120.71611354431036,31.221447256684566;120.7140691869497,31.21875584696343',
  38. 150
  39. )
  40. let buffer = new DC.Polygon(coords)
  41. buffer.setStyle({
  42. material: DC.Color.RED.withAlpha(0.4),
  43. })
  44. layer.addOverlay(buffer)
  45. viewer.flyTo(layer)
  46. </script>
  47. </body>
  48. </html>