修改tip提示语

src/Obj/Base/PolygonObject/index.js

@@ -1500,7 +1500,7 @@ class PolygonObject extends Base {
         fromDegreesArray = []
         this.heightMode = this.heightMode
 
-        if(this._positionEditingCallback) {
+        if (this._positionEditingCallback) {
           this._positionEditingCallback()
           this._positionEditingCallback = null
         }
@@ -1700,19 +1700,20 @@ class PolygonObject extends Base {
     return this._areaChangeCallBack
   }
 
-  set areaChangeCallBack (cd) {
+  set areaChangeCallBack(cd) {
     this._areaChangeCallBack = cd
   }
 
   nodeEdit(cb = () => { }) {
     this.positionEditing = false
     setTimeout(() => {
+      let previous = [...this.options.positions]
       if (YJ.Measure.GetMeasureStatus()) {
         cb('上一次测量未结束')
       } else {
         YJ.Measure.SetMeasureStatus(true)
         this.picking = false
-        this.tip = new MouseTip('请选择一个顶点，右键取消', this.sdk)
+        this.tip = new MouseTip('左键单击选择控制点，右键单击取消编辑', this.sdk)
         this.event = new MouseEvent(this.sdk)
         this.nodePoints = []
         let _this = this
@@ -1848,7 +1849,7 @@ class PolygonObject extends Base {
               selectPoint = pick.id
               this.nodePoints.splice(pick.id.index, 1)
               this.sdk.viewer.entities.remove(pick.id)
-              this.tip.set_text('左键开始，右键结束，CTRL+右键撤销')
+              this.tip.set_text('左键单击确定控制点位置，右键单击结束编辑! CTRL+右键单击撤销上一个控制点')
               originalPosition = this.cartesian3Towgs84(
                 selectPoint.position.getValue(),
                 this.sdk.viewer
@@ -1863,6 +1864,51 @@ class PolygonObject extends Base {
             if (added) {
               this.options.positions.splice(selectPoint.index, 1)
             }
+            if (this.options.positions.length < 3) {
+              this.options.positions = [...previous]
+              let positions = this.options.positions
+              let fromDegreesArray = []
+              for (let i = 0; i < positions.length; i++) {
+                fromDegreesArray.push(positions[i].lng, positions[i].lat)
+              }
+              this.positions = Cesium.Cartesian3.fromDegreesArray(
+                fromDegreesArray
+              )
+              newpositions = Cesium.Cartesian3.fromDegreesArray(fromDegreesArray)
+              this.previous = {
+                positions: [...this.positions]
+              }
+
+              let objectsToExclude = [...this.sdk.viewer.entities.values]
+              let positions2 = [[]]
+              for (let i = 0; i < this.options.positions.length; i++) {
+                positions2[0].push([
+                  this.options.positions[i].lng,
+                  this.options.positions[i].lat
+                ])
+              }
+              positions2[0].push([
+                this.options.positions[0].lng,
+                this.options.positions[0].lat
+              ])
+              let polygon = turf.polygon(positions2)
+              let centroid = turf.centroid(polygon)
+              this
+                .getClampToHeight({
+                  lng: centroid.geometry.coordinates[0],
+                  lat: centroid.geometry.coordinates[1]
+                }, objectsToExclude)
+                .then(height => {
+                  this.label.position = [
+                    centroid.geometry.coordinates[0],
+                    centroid.geometry.coordinates[1],
+                    height
+                  ]
+                })
+
+              this.areaByMeter = this.computeArea(this.options.positions)
+              this.areaChangeCallBack && this.areaChangeCallBack()
+            }
             cb(null, this.options.positions)
           }
 
@@ -2018,6 +2064,9 @@ class PolygonObject extends Base {
                 }
               }
               this.nodePoints.pop()
+              if(this.options.positions.length < 3) {
+                this.tip.set_text('左键单击确定控制点位置，右键单击取消编辑! CTRL+右键单击撤销上一个控制点')
+              }
             }
           })