core/layers/BaseLayer.js

  1. import { Cesium } from '../../../namespace'
  2. import { getGoogleOption, getTdtOption } from '../../utils/layers/ImageryOption'
  3. /**
  4.  * 基础图层类
  5.  * @class
  6.  */
  7. class BaseLayer {
  8.   /**
  9.    * 构造函数
  10.    */
  11.   constructor() {}
  12.   /**
  13.    * 默认单片图
  14.    * @readonly
  15.    * @type {Object}
  16.    */
  17.   get DefaultSingleImg() {
  18.     const img = require('../../../resources/globe.jpg')
  19.     const layer = Cesium.ImageryLayer.fromProviderAsync(
  20.       Cesium.SingleTileImageryProvider.fromUrl(img)
  21.     )
  22.     return layer
  23.   }
  24.   /**
  25.    * 默认arcgis底图
  26.    * @readonly
  27.    * @type {Object}
  28.    */
  29.   get DefaultArcgisImg() {
  30.     return Cesium.ImageryLayer.fromProviderAsync(
  31.       Cesium.ArcGisMapServerImageryProvider.fromUrl(
  32.         'https://services.arcgisonline.com/ArcGIS/rest/services/World_Street_Map/MapServer'
  33.       )
  34.     )
  35.   }
  37.   /**
  38.    * 默认谷歌影像地图
  39.    * @readonly
  40.    * @type {Object}
  41.    */
  42.   get DefaultGoogleVec() {
  43.     const option = getGoogleOption()
  44.     return Cesium.ImageryLayer.fromProviderAsync(
  45.       new Cesium.UrlTemplateImageryProvider(option)
  46.     )
  47.   }
  48.   /**
  49.    * 默认天地图影像地图
  50.    * @readonly
  51.    * @type {Object}
  52.    */
  53.   get DefaultTdtImg() {
  54.     const option = getTdtOption('img')
  55.     return Cesium.ImageryLayer.fromProviderAsync(
  56.       new Cesium.WebMapTileServiceImageryProvider(option)
  57.     )
  58.   }
  60.   /**
  61.    * 默认天地图矢量地图
  62.    * @readonly
  63.    * @type {Object}
  64.    */
  65.   get DefaultTdtVec() {
  66.     const option = getTdtOption('vec')
  67.     return Cesium.ImageryLayer.fromProviderAsync(
  68.       new Cesium.WebMapTileServiceImageryProvider(option)
  69.     )
  70.   }
  72.   /**
  73.    * 默认全球地形
  74.    * @readonly
  75.    * @type {Object}
  76.    */
  77.   get DefaultTerrain() {
  78.     const terrainProvider = Cesium.createWorldTerrainAsync({
  79.       requestWaterMask: true,
  80.       requestVertexNormals: true,
  81.     })
  82.     return new Cesium.Terrain(terrainProvider)
  83.   }
  85.   /**
  86.    * 获取tms格式地形
  87.    * @param {String} url - 地形文件路径，如：http://localhost:80/terrain/
  88.    * @returns tms格式地形对象
  89.    */
  90.   getTerrain(url) {
  91.     return new Cesium.Terrain(Cesium.CesiumTerrainProvider.fromUrl(url))
  92.   }
  93. }
  94. export default BaseLayer