Class: GeoJSONLayerUtil

Methods

GeoJSONLayerUtil.toPrimitive(feature){Array}

view/utils/GeoJSONLayerUtil.js, line 42

将单个要素或要素集合转换为Cesium原生Primitive的方法

Name	Type	Description
feature	Feature | Array.<Feature>	单个要素或要素集合

Returns:

Type	Description
Array	转换后的Primitive数组

Example

const url = 'http://10.10.130.72:8200/Vector/json/metro.json'
const addGeoJSON = async (url) => {
  const renderer = new UniqueValueRenderer({
    //...
  })
  // 创建GeoJSONLayer对象
  const geojsonLayer = new GeoJSONLayer({
    url,
  })
  // 请求获取要素集
  const featureSet = await geojsonLayer.queryFeatures()
  const features = featureSet.features
  // 为要素集设置renderer
  RendererUtil.updateRenderer(features, renderer)
  // 将要素集转换为原生Primitive对象
  const primitives = GeoJSONLayerUtil.toPrimitive(features, {
    viewer
  })
  // 将Primitive对象添加到场景中
  for (let i = 0; i < primitives.length; i++) {
    viewer.scene.primitives.add(primitives[i])
  }
}
addGeoJSON(url)