!168 重构绘制面域删除已使用的曲线

Merge pull request !168 from ChenX/RegionEraseUsed

src/Add-on/DrawRegion.ts

@@ -1,8 +1,5 @@
 import { app } from '../ApplicationServices/Application';
-import { Circle } from '../DatabaseServices/Circle';
 import { Curve } from '../DatabaseServices/Curve';
-import { Ellipse } from '../DatabaseServices/Ellipse';
-import { Polyline } from '../DatabaseServices/Polyline';
 import { Region } from '../DatabaseServices/Region';
 import { Command } from '../Editor/CommandMachine';
 import { PromptStatus } from '../Editor/PromptResult';
@@ -10,7 +7,6 @@ import { RegionParse, Route } from '../Geometry/RegionParse';
 
 export class DrawRegion implements Command
 {
-    private m_CurveMap: Map<Curve, { pl?: Polyline, used: boolean }> = new Map();
     async exec()
     {
         let ssRes = await app.m_Editor.GetSelection({ UseSelect: true, Filter: { filterTypes: [Curve] } });
@@ -18,72 +14,51 @@ export class DrawRegion implements Command
         if (ssRes.Status !== PromptStatus.OK)
             return;
 
-        this.DrawRegionAndGetCurveMap(ssRes.SelectSet.SelectEntityList as Curve[]);
+        let cus = ssRes.SelectSet.SelectEntityList as Curve[];
 
-        this.DeleteCurvesMap();
-
-        this.m_CurveMap.clear();
-    }
-    DrawRegionAndGetCurveMap(cus: Curve[])
-    {
         let lines: Curve[] = [];
 
         for (let cu of cus)
         {
             if (cu.IsClose)
             {
-                this.m_CurveMap.set(cu, { used: true });
                 let reg = Region.CreateFromCurves([cu.Clone() as Curve]);
                 app.m_Database.ModelSpace.Append(reg);
-            }
-            else if (cu instanceof Polyline)
-            {
-                for (let c of cu.Explode())
-                {
-                    this.m_CurveMap.set(c, { used: false, pl: cu as Polyline });
-                    lines.push(c);
-                }
+                cu.Erase();
             }
             else
-            {
-                this.m_CurveMap.set(cu, { used: false });
                 lines.push(cu);
-            }
         }
         if (lines.length > 0)
         {
             let reg = new RegionParse(lines);
 
             for (let routes of reg.m_RegionsOutline)
-                this.AddToModelSpace(routes);
+                this.DrawRegion(routes);
             for (let routes of reg.m_RegionsInternal)
-                this.AddToModelSpace(routes);
+                this.DrawRegion(routes);
+
+            for (let cu of cus)
+            {
+                if (reg.GetCueveUsed(cu))
+                    cu.Erase();
+            }
+
+            for (let [, cus] of reg.m_ExpLineMap)
+            {
+                for (let c of cus)
+                    if (!reg.GetCueveUsed(c))
+                        app.m_Database.ModelSpace.Append(c);
+            }
         }
     }
-    AddToModelSpace(routeS: Set<Route>)
+    DrawRegion(routeS: Set<Route>)
     {
         let cus: Curve[] = [];
         for (let r of routeS)
-        {
-            this.m_CurveMap.get(r.curve).used = true;
             cus.push(r.curve);
-        }
         let reg = Region.CreateFromCurves(cus);
-        app.m_Database.ModelSpace.Append(reg);
-    }
-    DeleteCurvesMap()
-    {
-        for (let [cu, status] of this.m_CurveMap)
-        {
-            if (status.pl)
-            {
-                if (status.used && !status.pl.IsErase)
-                    status.pl.Erase();
-                else
-                    app.m_Database.ModelSpace.Append(cu);
-            }
-            else if (status.used)
-                cu.Erase();
-        }
+        if (reg)
+            app.m_Database.ModelSpace.Append(reg);
     }
 }

src/DatabaseServices/Circle.ts

@@ -321,6 +321,7 @@ export class Circle extends Curve
         super.ReadFile(file);
         let ver = file.Read();
         this.m_Radius = file.Read();
+        this.Update();
     }
     //对象将自身数据写入到文件.
     WriteFile(file: CADFile)

src/DatabaseServices/Entity.ts

@@ -325,7 +325,6 @@ export class Entity extends CADObject
     ApplyPartialUndo(undoData: CADObject)
     {
         super.ApplyPartialUndo(undoData);
-        this.Update();
     }
 
     CopyFrom(obj: CADObject)

src/DatabaseServices/Line.ts

@@ -1,9 +1,10 @@
 import * as THREE from 'three';
-import { Box3, Geometry, Matrix4, Object3D, Shape, Vector3 } from 'three';
+import { Box3, BufferGeometry, Matrix4, Object3D, Shape, Vector3 } from 'three';
 import { arraySortByNumber } from '../Common/ArrayExt';
 import { ColorMaterial } from '../Common/ColorPalette';
 import { Vec3DTo2D } from '../Common/CurveUtils';
 import { Status } from '../Common/Status';
+import { BufferGeometryUtils } from '../Geometry/BufferGeometryUtils';
 import { equalv3, isParallelTo, MoveMatrix } from '../Geometry/GeUtils';
 import { RenderType } from '../GraphicsSystem/Enum';
 import { IntersectLineAndArc, IntersectLineAndCircle, IntersectLineAndLine, IntersectOption, IntersectPolylineAndCurve, reverseIntersectOption } from '../GraphicsSystem/IntersectWith';
@@ -39,21 +40,15 @@ export class Line extends Curve
     }
     InitDrawObject(renderType: RenderType = RenderType.Wireframe): Object3D
     {
-        let geo = new Geometry();
-        geo.vertices.push(this.m_StartPoint, this.m_EndPoint);
-        return new THREE.Line(geo, ColorMaterial.GetLineMaterial(this.ColorIndex));
+        return new THREE.Line(
+            BufferGeometryUtils.CreateFromPts([this.m_StartPoint, this.m_EndPoint]),
+            ColorMaterial.GetLineMaterial(this.ColorIndex));
     }
 
     UpdateDrawObject(type: RenderType, en: Object3D)
     {
         let lineObj = en as THREE.Line;
-
-        let geo = lineObj.geometry as THREE.Geometry;
-
-        geo.vertices[0].copy(this.m_StartPoint);
-        geo.vertices[1].copy(this.m_EndPoint);
-
-        geo.verticesNeedUpdate = true;
+        BufferGeometryUtils.UpdatePts(lineObj.geometry as BufferGeometry, [this.m_StartPoint, this.m_EndPoint]);
     }
 
     GetSnapPoints(): Array<THREE.Vector3>
@@ -295,6 +290,7 @@ export class Line extends Curve
         let ver = file.Read();//1
         this.m_StartPoint.fromArray(file.Read());
         this.m_EndPoint.fromArray(file.Read());
+        this.Update();
     }
     //对象将自身数据写入到文件.
     WriteFile(file: CADFile)

src/DatabaseServices/Polyline.ts

@@ -1,5 +1,5 @@
 import * as THREE from 'three';
-import { Box3, Geometry, Matrix4, Object3D, Vector2, Vector3 } from 'three';
+import { Box3, Geometry, Matrix4, Object3D, Vector2, Vector3, Matrix3 } from 'three';
 import { CreateBoardUtil } from '../ApplicationServices/mesh/createBoard';
 import { arrayLast, arrayRemoveDuplicateBySort } from '../Common/ArrayExt';
 import { ColorMaterial } from '../Common/ColorPalette';
@@ -36,6 +36,28 @@ export class Polyline extends Curve
         this.m_ClosedMark = false;
     }
 
+    /**
+     * Updates matrix to
+     * @param m 
+     */
+    UpdateMatrixTo(m: Matrix4)
+    {
+        this.WriteAllObjectRecord();
+        let p = new Vector3().setFromMatrixPosition(m);
+        p.applyMatrix4(this.OCSInv);
+        if (equaln(p.z, 0))
+        {
+            let tm = matrixAlignCoordSys(this.OCS, m);
+            for (let p of this.m_LineData)
+            {
+                let p3 = Vec2DTo3D(p.pt);
+                p3.applyMatrix4(tm);
+                p.pt.set(p3.x, p3.y);
+            }
+            this.OCS = m;
+        }
+    }
+
     //翻转曲线,首尾调换
     Reverse(): this
     {
@@ -1144,7 +1166,3 @@ export class Polyline extends Curve
         file.Write(this.m_ClosedMark);
     }
 }
-
-
-
-

src/DatabaseServices/Region.ts

@@ -16,17 +16,17 @@ import { matrixAlignCoordSys } from '../Common/Matrix4Utils';
 export class Region extends Entity
 {
     private m_ShapeManager: ShapeManager = new ShapeManager();
-    static CreateFromCurves(cus: Curve[]): Region
+    static CreateFromCurves(cus: Curve[]): Region | undefined
     {
         let shapes = Contour.GetAllContour(cus).map(out => new Shape(out));
-        let reg = new Region();
         if (shapes.length > 0)
         {
+            let reg = new Region();
             //MarkX:曲线同面域一起移动
             reg.ApplyMatrix(shapes[0].Outline.Curve.OCS);
+            reg.ShapeManager.AppendShapeList(shapes);
+            return reg;
         }
-        reg.ShapeManager.AppendShapeList(shapes);
-        return reg;
     }
 
     //如果需要修改获取到的属性,需要Clone后进行操作,否则会对原实体进行破坏
@@ -110,7 +110,6 @@ export class Region extends Entity
         if (this.IsCoplaneTo(otherRegion))
         {
             this.WriteAllObjectRecord();
-            otherRegion.ShapeApplyMatrix(matrixAlignCoordSys(otherRegion.OCS, this.OCS));
             let oldOcs = this.OCS;
 
             //把形状曲线转移到二维屏幕计算后还原回来

src/DatabaseServices/Shape.ts

@@ -279,6 +279,11 @@ export class Shape
     UpdateShape()
     {
         this.m_Shape = this.Outline.Shape;
+        this.Holes.forEach(h =>
+        {
+            if (h.Curve instanceof Polyline)
+                h.Curve.UpdateMatrixTo(this.Outline.Curve.OCS);
+        });
         this.m_Shape.holes.push(...this.m_Holes.map(h => h.Shape as THREE.Path));
     }
     //读写文件

src/Geometry/RegionParse.ts

@@ -1,6 +1,8 @@
 import { Vector3 } from 'three';
+import { arrayRemoveDuplicateBySort, arrayRemoveIf } from '../Common/ArrayExt';
 import { Arc } from '../DatabaseServices/Arc';
 import { Curve } from '../DatabaseServices/Curve';
+import { Polyline } from '../DatabaseServices/Polyline';
 import { Count } from './Count';
 import { CurveMap } from './CurveMap';
 import { angle, equalv3 } from './GeUtils';
@@ -36,6 +38,9 @@ export class RegionParse
     //区域列表 通常是内轮廓
     m_RegionsInternal: RegionRouteS = [];
 
+    //碎线 曲线进入到这里会被炸开.
+    m_ExpLineMap: Map<Curve, Curve[]> = new Map();
+
     /**
      * Creates an instance of RegionParse.
      * @param {Curve[]} cuList 请不要传递圆和椭圆.
@@ -70,6 +75,24 @@ export class RegionParse
         }
     }
 
+    /**
+     * 曲线是否已经被算法使用
+     * @param cu 
+     * @returns true if cueve used 
+     */
+    GetCueveUsed(cu: Curve): boolean
+    {
+        if (this.m_ExpLineMap.has(cu))
+        {
+            let use = this.m_ExpLineMap.get(cu).some(c => this.m_CountCu.GetCount(c) > 0);
+            if (!use)
+                this.m_ExpLineMap.delete(cu);
+            return use;
+        }
+        else
+            return this.m_CountCu.GetCount(cu) > 0;
+    }
+
     /**
      * 使用类似涨潮的方式,从最低的地方,采用顺时针填充.
      * 算法允许搜索到的区域在外轮廓外.
@@ -172,17 +195,51 @@ export class RegionParse
     private GenerateNodeMap(cuList: Curve[]): Set<Stand>
     {
         let curveMap = new CurveMap();
+
+        //将多段线炸开
+        let plcus: Curve[] = [];
+        arrayRemoveIf(cuList, c =>
+        {
+            if (c instanceof Polyline)
+            {
+                let cus = c.Explode();
+
+                //如果为圆弧,提前打断
+                let arcs: Arc[] = [];
+                arrayRemoveIf(cus, c =>
+                {
+                    if (c instanceof Arc)
+                    {
+                        let arcBrs = this.BreakArc(c);
+                        if (arcBrs.length > 1)
+                        {
+                            arcs.push(...arcBrs);
+                            return true;
+                        }
+                    }
+                    return false;
+                });
+                //加入到计算
+                cus.push(...arcs);
+
+                this.m_ExpLineMap.set(c, cus);
+                plcus.push(...cus);
+                return true;
+            }
+            return false;
+        });
+        cuList.push(...plcus);
+
         for (let cu of cuList)
         {
             //由于圆弧可能导致最低点计算错误的问题.
             if (cu instanceof Arc)
             {
-                let underPt = cu.Center.add(new Vector3(0, -cu.Radius));
-                let param = cu.GetParamAtPoint(underPt);
-                if (param > 0.01 && param < 0.99)
+                let arcs = this.BreakArc(cu);
+                if (arcs.length > 1)
                 {
-                    let arcs = cu.GetSplitCurves(param);
                     arcs.forEach(a => curveMap.addCurveToMap(a));
+                    this.m_ExpLineMap.set(cu, arcs);
                     continue;
                 }
             }
@@ -206,12 +263,28 @@ export class RegionParse
                     a2 = angle(r2.curve.GetFistDeriv(r1.curve.EndParam).negate());
 
                 return a1 - a2;
-            })
+            });
+
+            //移除重复的线
+            arrayRemoveDuplicateBySort(s.routes, (r1, r2) =>
+            {
+                return r1.to === r2.to && r1.curve.constructor.name === r2.curve.constructor.name;
+            });
         });
 
         return new Set(curveMap.Stands);
     }
 
+    private BreakArc(arc: Arc)
+    {
+        let underPt = arc.Center.add(new Vector3(0, -arc.Radius));
+        let param = arc.GetParamAtPoint(underPt);
+        if (param > 0.01 && param < 0.99)
+            return arc.GetSplitCurves(param);
+        else
+            return [arc];
+    }
+
     //寻找闭合轮廓,下一站总是使用逆时针规划.
     private FindRegion(firstS: Stand,  //起点
         nowStand: Stand,       //当前站