09-Cesium实体Polylinevolume

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 * @Date: 2021-05-13 21:02:13
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 * @FilePath: \cesium-vue\src\components\PointEntity\index.vue
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<template>
  <div></div>
</template>
<script>
import * as Cesium from "cesium/Cesium"
export default {
  props: {
    viewer: Object
  },
  mounted() {
    this.init();
  },
  methods: {
    init() {

      this.viewer.entities.add({
        name: 'Red tube with rounded corners',
        polylineVolume: {
          positions: Cesium.Cartesian3.fromDegreesArray([
            -85.0, 32.0,
            -85.0, 36.0,
            -89.0, 36.0
          ]),
          material: Cesium.Color.RED,
          shape: this.computedRadius(6000.0)
        }

      })
      this.viewer.zoomTo(this.viewer.entities)

    },
    computedRadius(radius) {




      let positions = []
      for (let i = 0; i < 360; i++) {
        let rs = Cesium.Math.toRadians(i);//角度转为弧度

        //计算弧度的位置
        positions.push(new Cesium.Cartesian2(radius * Math.cos(rs), radius * Math.sin(rs)))

      }

      return positions;

    }
  }
}
</script>

<style>
</style>