方法
# static toPrimitive(feature)
将单个要素或要素集合转换为Cesium原生Primitive的方法
参数:
| 名称 | 类型 | 描述 |
|---|---|---|
feature |
Feature | Array.<Feature> | 单个要素或要素集合 |
转换后的Primitive数组
Array
示例
const url = 'http://webclient.smaryun.com:8089/igs/rest/services/Map/湖北省4547/FeatureServer'
const addIGSFeature = async (url) => {
const renderer = new UniqueValueRenderer({
//...
})
// 创建IGSFeatureLayer对象
const igsFeatureLayer = new IGSFeatureLayer({
url,
})
// 请求获取要素集
const featureSet = await igsFeatureLayer.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 = IGSFeatureLayerUtil.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])
}
}
addIGSFeature(url)