优化:角度标注的绘制逻辑(性能更高)

src/DatabaseServices/Dimension/2LineAngularDimension.ts

@@ -123,6 +123,7 @@ export class LineAngularDimension extends Entity
     }
     MoveGripPoints(indexList: number[], vec: Vector3)
     {
+        this.WriteAllObjectRecord();
         let arr = [
             this._L1StartPoint,
             this._L1EndPoint,
@@ -194,8 +195,6 @@ export class LineAngularDimension extends Entity
 
         let colorMaterial = GetDimLineMaterial(this, renderType);
 
-        let line = this._Arc.GetDrawObjectFromRenderType(renderType);
-
         let arrow1 = new Mesh(BufferGeometryUtils.ArrowGeometry(), colorMaterial);
         let arrow2 = new Mesh(BufferGeometryUtils.ArrowGeometry(), colorMaterial);
         let arrowSize = 10;
@@ -218,8 +217,7 @@ export class LineAngularDimension extends Entity
         arrow2.scale.set(arrowSize, arrowSize, arrowSize);
 
         let obj = new Object3D();
-        obj.add(arrow1, arrow2, l, l2, line);
-        AddEntityDrawObject(obj, this._Text, renderType);
+        obj.add(arrow1, arrow2, l, l2);
         this.UpdateDrawObject(renderType, obj);
         return obj;
     }
@@ -286,7 +284,8 @@ export class LineAngularDimension extends Entity
     }
     UpdateDrawObject(renderType: RenderType, obj: Object3D)
     {
-        let [arrow1, arrow2, li1, li2, line, textObj] = obj.children;
+        let [arrow1, arrow2, li1, li2] = obj.children;
+        obj.remove(...obj.children.splice(4));
 
         let l1 = new Line(this._L1StartPoint, this._L1EndPoint);
         let l2 = new Line(this._L2StartPoint, this._L2EndPoint);
@@ -294,6 +293,7 @@ export class LineAngularDimension extends Entity
         let insP = l1.IntersectWith(l2, IntersectOption.ExtendBoth)[0];
         if (insP)
         {
+            this._Arc.AutoUpdate = false;//如果没有在这边关闭这个,那么Arc的盒子将错误
             this._Arc.Center = insP;
             this._Arc.Radius = insP.distanceTo(this._DimPoint);
 
@@ -313,12 +313,15 @@ export class LineAngularDimension extends Entity
             for (let i = 0; i < ans.length; i++)
             {
                 let ni = FixIndex(i + 1, ans.length);
+
                 this._Arc.StartAngle = ans[ni];
                 this._Arc.EndAngle = ans[i];
+
                 if (this._Arc.ParamOnCurve(this._Arc.GetParamAtAngle(dimAn)))
                 {
-                    obj.remove(line);
-                    obj.remove(textObj);
+                    this._Arc.AutoUpdate = true;
+                    this._Arc.DeferUpdate();
+
                     AddEntityDrawObject(obj, this._Arc, renderType);
                     arrow1.position.copy(this._Arc.StartPoint);
                     arrow1.rotation.z = this._Arc.GetFistDerivAngle(0) + Math.PI / 2;
@@ -328,10 +331,14 @@ export class LineAngularDimension extends Entity
                     arrow2.rotation.z = this._Arc.GetFistDerivAngle(1) - Math.PI / 2;
                     arrow2.updateMatrix();
 
+                    this._Text.AutoUpdate = false;//更新标记
+
                     this._Text.TextString = this._TextString ? this._TextString.replace("<>", this.GetString()) : this.GetString();
                     this._Text.Position = this._Arc.GetPointAtParam(0.5);
                     this._Text.TextRotation = this._Arc.GetAngleAtParam(0.5) % (Math.PI) - Math.PI / 2;
 
+                    this._Text.AutoUpdate = true;//更新标记
+                    this._Text.DeferUpdate();
                     AddEntityDrawObject(obj, this._Text, renderType);
                     break;
                 }

src/Geometry/BufferGeometryUtils.ts

@@ -19,11 +19,10 @@ export namespace BufferGeometryUtils
         let bf = geo.getAttribute("position") as BufferAttribute;
         if (bf === undefined)
             geo.setFromPoints(pts);
-        else if (bf.count >= pts.length)
+        else if (bf.count === pts.length)//现在我们只有等于的时候才更新,因为如果不是这样,那么计算盒子的时候会出错(因为盒子内部的代码用的是所有的顶点)
         {
             bf.copyVector3sArray(pts);
             bf.needsUpdate = true;
-            geo.drawRange.count = pts.length;
         }
         else
             return false;