分离shape生成.

src/DatabaseServices/Region.ts

@@ -1,5 +1,5 @@
-import { Object3D, ShapeGeometry, Vector2, Vector3 } from 'three';
 import * as THREE from 'three';
+import { Object3D, Shape, ShapeGeometry, Vector2, Vector3 } from 'three';
 import { begin } from 'xaop';
 
 import { CreateBoardUtil } from '../ApplicationServices/mesh/createBoard';
@@ -21,7 +21,7 @@ const fuzz = 1e-8;
 export class Region extends Entity
 {
     private m_CuList: Array<Curve> = [];
-    private m_Shape: THREE.Shape;
+    private m_Shape: Shape;
     constructor(curveList?: Array<Curve>)
     {
         super();
@@ -29,23 +29,37 @@ export class Region extends Entity
         if (curveList)
             this.m_CuList.push(...curveList);
     }
+
+    get Shape(): Shape
+    {
+        if (!this.m_Shape) this.GeneralShape();
+        return this.m_Shape;
+    }
+
     Draw(renderType: RenderType): Object3D
     {
         let obj = super.Draw(renderType);
         if (obj) return obj;
 
-        this.m_Shape = new THREE.Shape();
+        this.GeneralShape();
 
-        let begin: Vector3;
+        let geometry = new ShapeGeometry(this.m_Shape, 60);
+        let mesh = new THREE.Mesh(geometry, ColorMaterial.GetLineMaterial(this.ColorIndex));
+        this.m_DrawEntity.set(renderType, mesh);
+        mesh.userData = this;
+        return mesh;
+    }
 
+    private GeneralShape()
+    {
+        this.m_Shape = new THREE.Shape();
+        let begin: Vector3;
         if (this.m_CuList.length > 1)
         {
             let firstL = this.m_CuList[0];
             let seconL = this.m_CuList[1];
-
             if (firstL.StartPoint.distanceTo(seconL.StartPoint) < fuzz
-                || firstL.StartPoint.distanceTo(seconL.EndPoint) < fuzz
-            )
+                || firstL.StartPoint.distanceTo(seconL.EndPoint) < fuzz)
             {
                 begin = firstL.EndPoint;
             }
@@ -55,15 +69,12 @@ export class Region extends Entity
             }
             this.m_Shape.moveTo(begin.x, begin.y);
         }
-
         for (let cu of this.m_CuList)
         {
             if (cu.EndPoint.distanceTo(begin) < fuzz)
                 cu.Reverse();
-
             //设置起点
             begin.copy(cu.EndPoint);
-
             if (cu instanceof Line)
             {
                 this.m_Shape.lineTo(begin.x, begin.y);
@@ -93,12 +104,6 @@ export class Region extends Entity
                 this.m_Shape.absarc(cu.Center.x, cu.Center.y, cu.Radius, cu.StartAngle, cu.EndAngle, cu.IsClockWise);
             }
         }
-
-        let geometry = new ShapeGeometry(this.m_Shape, 60);
-        let mesh = new THREE.Mesh(geometry, ColorMaterial.GetLineMaterial(this.ColorIndex));
-        this.m_DrawEntity.set(renderType, mesh);
-        mesh.userData = this;
-        return mesh;
     }
 
     //在移动时应用矩阵变换