Geometry.Edit/Drag support altitude

src/geometry/Circle.ts

@@ -207,7 +207,7 @@ export class Circle extends CenterMixin(Polygon) {
         return {
             'feature': feature,
             'subType': 'Circle',
-            'coordinates': [center.x, center.y],
+            'coordinates': center.toArray(),
             'radius': this.getRadius()
         };
     }

src/geometry/Ellipse.ts

@@ -304,7 +304,7 @@ export class Ellipse extends CenterMixin(Polygon) {
         return {
             'feature': feature,
             'subType': 'Ellipse',
-            'coordinates': [center.x, center.y],
+            'coordinates': center.toArray(),
             'width': this.getWidth(),
             'height': this.getHeight()
         };

src/geometry/Geometry.ts

@@ -1953,6 +1953,34 @@ export class Geometry extends JSONAble(Eventable(Handlerable(Class))) {
         return this;
     }
 
+    getEditCenter() {
+        const center = this.getCenter().copy();
+        center.z = 0;
+
+        const altitude = this.getAltitude();
+        if (isNumber(altitude)) {
+            center.z = altitude;
+            return center;
+        }
+        let total = 0, count = 0;
+        //计算图形海拔的平均值,确定图形中心点的海拔坐标
+        const checkArray = (altitudeArray) => {
+            for (let i = 0, len = altitudeArray.length; i < len; i++) {
+                if (Array.isArray(altitudeArray[i])) {
+                    checkArray(altitudeArray[i]);
+                } else {
+                    count++;
+                    total += altitudeArray[i];
+                }
+            }
+        }
+        if (Array.isArray(altitude)) {
+            checkArray(altitude);
+            center.z = total / count;
+        }
+        return center;
+    }
+
 }
 
 Geometry.mergeOptions(options);
@@ -2064,3 +2092,4 @@ function getSegmentAngle(cx: number, cy: number, x: number, y: number): number {
 
 export default Geometry;
 
+

src/geometry/Rectangle.ts

@@ -336,7 +336,7 @@ export class Rectangle extends Polygon {
         return {
             'feature': feature,
             'subType': 'Rectangle',
-            'coordinates': [nw.x, nw.y],
+            'coordinates': nw.toArray(),
             'width': this.getWidth(),
             'height': this.getHeight()
         };

src/geometry/Sector.ts

@@ -225,7 +225,7 @@ export class Sector extends Circle {
         return {
             'feature': feature,
             'subType': 'Sector',
-            'coordinates': [center.x, center.y],
+            'coordinates': center.toArray(),
             'radius': this.getRadius(),
             'startAngle': this.getStartAngle(),
             'endAngle': this.getEndAngle()