merge the origin

modules/exts/GroundSkyBox.js

  * @Date: 2021-02-21 17:50:31
  */
 
-import { Cesium } from '@dc-modules/namespace'
-
-const {
+import {
   BoxGeometry,
   Cartesian3,
   defined,
   BlendingState,
   SceneMode,
   ShaderProgram,
-  ShaderSource
-} = Cesium
+  ShaderSource,
+  SkyBox
+} from '@cesium/engine'
 
 const SkyBoxFS = `
   uniform samplerCube u_cubeMap;
   }
 `
 
-class GroundSkyBox extends Cesium.SkyBox {
+class GroundSkyBox extends SkyBox {
   constructor(options = {}) {
     super(options)
     this.offsetAngle = options?.offsetAngle || 0

modules/heat/HeatLayer.js

     }
     return this
   }
+
+  /**
+   *
+   * @return {HeatLayer}
+   */
+  clear() {
+    return this
+  }
 }
 
 Layer.registerType('heat')

modules/option/ViewerOption.js

 class ViewerOption {
   constructor(viewer) {
     this._viewer = viewer
-    this._options = {}
-    this._init()
-  }
-
-  /**
-   * Init viewer
-   * @private
-   */
-  _init() {
-    this._viewer.delegate.cesiumWidget.creditContainer.style.display = 'none'
-    this._viewer.delegate.cesiumWidget.screenSpaceEventHandler.removeInputAction(
-      Cesium.ScreenSpaceEventType.LEFT_DOUBLE_CLICK
-    )
     this._viewer.scene.screenSpaceCameraController.maximumZoomDistance = 40489014.0
-    this._viewer.scene.backgroundColor = Cesium.Color.TRANSPARENT
-    this._viewer.delegate.imageryLayers.removeAll()
+    this._options = {}
   }
 
   /**

modules/plot/edit/EditPolygon.js

    * @private
    */
   _mountAnchor() {
-    let positions = [].concat(
-      this._overlay.delegate.polygon.hierarchy.getValue(Cesium.JulianDate.now())
+    this._positions = []
+    let positions = this._overlay.delegate.polygon.hierarchy.getValue(Cesium.JulianDate.now())
         .positions
-    )
     positions.push(positions[0])
     for (let i = 0; i < positions.length - 1; i++) {
       let mid = midCartesian(positions[i], positions[i + 1])

modules/plot/edit/EditPolyline.js

    * @private
    */
   _mountAnchor() {
-    let positions = [].concat(
-      this._overlay.delegate.polyline.positions.getValue(
-        Cesium.JulianDate.now()
-      )
-    )
+    this._positions = []
+    let positions = this._overlay.delegate.polyline.positions.getValue(Cesium.JulianDate.now())
     for (let i = 0; i < positions.length - 1; i++) {
       let mid = midCartesian(positions[i], positions[i + 1])
       this._positions.push(positions[i])

modules/tools/EditTool.js

    * @returns {EditTool}
    */
   activate(options = {}) {
+    this._anchorLayer.entities.removeAll()
+    this._anchors = []
     this._viewer.tooltip.enable = true
     this._options = { ...DEF_OPTS, ...options }
     this._unbindEvent()

modules/viewer/Viewer.js

  * @Author: Caven
  * @Date: 2019-12-27 17:13:24
  */
-
 import { Cesium } from '@dc-modules/namespace'
 import Parse from '@dc-modules/parse/Parse'
 import {
 import createTools from '@dc-modules/tools'
 
 const DEF_OPTS = {
-  animation: false, //Whether to create animated widgets, lower left corner of the meter
-  baseLayerPicker: false, //Whether to display the layer selector
-  imageryProvider: false, // Whether to display the default imagery
-  fullscreenButton: false, //Whether to display the full-screen button
-  geocoder: false, //To display the geocoder widget, query the button in the upper right corner
-  homeButton: false, //Whether to display the Home button
-  infoBox: false, //Whether to display the information box
-  sceneModePicker: false, //Whether to display 3D/2D selector
-  selectionIndicator: false, //Whether to display the selection indicator component
-  timeline: false, //Whether to display the timeline
-  navigationHelpButton: false, //Whether to display the help button in the upper right corner
-  navigationInstructionsInitiallyVisible: false,
   creditContainer: undefined,
   shouldAnimate: true
 }