解决scale太小时flyto高度问题

src/Obj/Base/GroundSvg/index.js

@@ -10,6 +10,7 @@ import { FontLoader } from '../../../../static/3rdparty/three/jsm/loaders/FontLo
 import { TextGeometry } from '../../../../static/3rdparty/three/jsm/geometries/TextGeometry.js';
 import * as variable from '../../../../static/3rdparty/three/fonts/FZZongYi-M05S_regular.typeface.json'
 import Base from "../index";
+import { setActiveViewer, closeRotateAround, closeViewFollow } from '../../../Global/global'
 import { setSplitDirection, syncSplitData, setActiveId } from '../../../Global/SplitScreen'
 
 class GroundSvg extends Base {
@@ -2171,6 +2172,59 @@ class GroundSvg extends Base {
     }
     this._update()
   }
+
+  async flyTo(options = {}) {
+    if (this._error) {
+      return
+    }
+    setActiveViewer(0)
+    closeRotateAround(this.sdk)
+    closeViewFollow(this.sdk)
+
+    if (this.options.customView && this.options.customView.relativePosition && this.options.customView.orientation) {
+      let orientation = {
+        heading: Cesium.Math.toRadians(this.options.customView.orientation.heading || 0.0),
+        pitch: Cesium.Math.toRadians(this.options.customView.orientation.pitch || -60.0),
+        roll: Cesium.Math.toRadians(this.options.customView.orientation.roll || 0.0)
+      }
+
+      let lng = this.options.customView.relativePosition.lng
+      let lat = this.options.customView.relativePosition.lat
+      let alt = this.options.customView.relativePosition.alt
+      let destination = Cesium.Cartesian3.fromDegrees(lng, lat, alt)
+
+      let position = { ...this.options.position }
+      // 如果没有高度值，则获取紧贴高度计算
+      if (!position.hasOwnProperty('alt')) {
+        position.alt = await this.getClampToHeight(position)
+      }
+      lng = this.options.customView.relativePosition.lng + position.lng
+      lat = this.options.customView.relativePosition.lat + position.lat
+      alt = this.options.customView.relativePosition.alt + position.alt
+      destination = Cesium.Cartesian3.fromDegrees(lng, lat, alt)
+      this.sdk.viewer.camera.flyTo({
+        destination: destination,
+        orientation: orientation
+      })
+    }
+    else {
+      let array = []
+      for (let i = 0; i < this.controlPoints.length; i++) {
+        let height = await this.getClampToHeight({lng: this.controlPoints[i][0], lat: this.controlPoints[i][1]})
+        let cartesian = Cesium.Cartesian3.fromDegrees(this.controlPoints[i][0], this.controlPoints[i][1], height)
+        array.push(cartesian.x, cartesian.y, cartesian.z)
+      }
+      let BoundingSphere = Cesium.BoundingSphere.fromVertices(array)
+
+      this.sdk.viewer.camera.flyToBoundingSphere(BoundingSphere, {
+        offset: options.orientation || {
+          heading: Cesium.Math.toRadians(0.0),
+          pitch: Cesium.Math.toRadians(-60.0),
+          roll: Cesium.Math.toRadians(0.0)
+        }
+      })
+    }
+  }
 }
 
 export default GroundSvg