修改文档

README.md

 
 ## Setting
 
+`Webpack`
+
+```js
+ // webpack.config.js
+
+const path = require('path')
+const CopywebpackPlugin = require('copy-webpack-plugin')
+const dvgisDist = './node_modules/@dvgis'
+
+module.exports = {
+  // other settings
+  resolve: {
+    alias: {
+      dvgis: path.resolve(__dirname, dvgisDist)
+    }
+  },
+  plugins:[
+    new CopyWebpackPlugin([
+      {  
+        from: path.join(dvgisDist, 'dc-sdk/dist/resources'),
+        to: 'libs/dc-sdk/resources' 
+      }
+    ])
+  ]
+}
+```
+
 `Vue2.x`
 
 ```js

README_zh.md

 
 ## 配置
 
+`Webpack`
+
+```js
+ // webpack.config.js
+
+const path = require('path')
+const CopywebpackPlugin = require('copy-webpack-plugin')
+const dvgisDist = './node_modules/@dvgis'
+
+module.exports = {
+  // 其他配置
+  resolve: {
+    alias: {
+      dvgis: path.resolve(__dirname, dvgisDist)
+    }
+  },
+  plugins:[
+    new CopyWebpackPlugin([
+      {  
+        from: path.join(dvgisDist, 'dc-sdk/dist/resources'),
+        to: 'libs/dc-sdk/resources' 
+      }
+    ])
+  ]
+}
+```
+
 `Vue2.x`
 
 ```js

src/core/widget/ContextMenu.js

     this._ulEl = undefined
     this._handler = undefined
     this._overlay = undefined
+    this._position = undefined
+    this._surfacePosition = undefined
+    this._windowPosition = undefined
     this._config = {}
     this._defaultMenu = [
       {
    * @private
    */
   _onRightClick(movement) {
-    this._enable && this._updateWindowCoord(movement.position)
-    this._overlay = undefined
-    let target = this._viewer.scene.pick(movement.position)
+    if (!this._enable) {
+      return
+    }
+    let scene = this._viewer.scene
+    this._windowPosition = movement.position
+    this._updateWindowCoord(movement.position)
+    let target = scene.pick(movement.position)
+    if (scene.pickPositionSupported) {
+      this._position = scene.pickPosition(movement.position)
+    }
+    if (scene.mode === Cesium.SceneMode.SCENE3D) {
+      let ray = scene.camera.getPickRay(movement.position)
+      this._surfacePosition = scene.globe.pick(ray, scene)
+    } else {
+      this._surfacePosition = scene.camera.pickEllipsoid(
+        movement.position,
+        Cesium.Ellipsoid.WGS84
+      )
+    }
     // for Entity
     if (target && target.id && target.id instanceof Cesium.Entity) {
       let layer = this._viewer
     let self = this
     if (method) {
       a.onclick = () => {
-        method.call(context, self._viewer, self._overlay)
+        method.call(context, {
+          position: self._position,
+          windowPosition: self._windowPosition,
+          surfacePosition: self._surfacePosition,
+          overlay: self._overlay
+        })
         self.hide()
       }
     }

webpack.base.conf.js

 
 let cesiumCopyPlugin = [
   new CopyWebpackPlugin([
-    { from: path.join(cesiumBuild, 'Assets'), to: 'resources/Assets' }
-  ]),
-  new CopyWebpackPlugin([
-    { from: path.join(cesiumBuild, 'Workers'), to: 'resources/Workers' }
-  ]),
-  new CopyWebpackPlugin([
+    { from: path.join(cesiumBuild, 'Assets'), to: 'resources/Assets' },
+    { from: path.join(cesiumBuild, 'Workers'), to: 'resources/Workers' },
     { from: path.join(cesiumBuild, 'ThirdParty'), to: 'resources/ThirdParty' }
   ])
 ]