!861 优化:实体捕捉

src/DatabaseServices/3DSolid/ExtrudeHole.ts

@@ -123,6 +123,8 @@ export class ExtrudeHole extends Hole
                     pts.push(
                         ...contour.GetObjectSnapPoints(snapMode, pickPoint, lastPoint, viewXform)
                     );
+                    if (snapMode === ObjectSnapMode.Mid)
+                        pts.push(...contour.GetStretchPoints().map(p => p.add(this.Normal.multiplyScalar(-this.Height / 2))));
                     return pts;
                 }
             default:

src/DatabaseServices/3DSolid/SweepSolid.ts

@@ -1,7 +1,6 @@
 import { BufferGeometry, Float32BufferAttribute, Line3, LineSegments, Matrix3, Matrix4, Mesh, Object3D, Vector3 } from "three";
 import { Line2 } from "three/examples/jsm/lines/Line2";
 import { LineMaterial } from "three/examples/jsm/lines/LineMaterial";
-import { arrayLast } from "../../Common/ArrayExt";
 import { ColorMaterial } from '../../Common/ColorPalette';
 import { DisposeThreeObj } from '../../Common/Dispose';
 import { Log } from "../../Common/Log";
@@ -211,7 +210,7 @@ export class SweepSolid extends Entity
     }
     get BoundingBox()
     {
-        return new Box3Ext().setFromPoints(this.GetEndPoints());
+        return new Box3Ext().setFromPoints(this.GetEndPoint());
     }
     get OBB(): OBB
     {
@@ -229,7 +228,7 @@ export class SweepSolid extends Entity
         switch (snapMode)
         {
             case ObjectSnapMode.End:
-                return this.GetEndPoint2();
+                return this.GetEndPoint();
             case ObjectSnapMode.Mid:
             case ObjectSnapMode.Cen:
             case ObjectSnapMode.Nea:
@@ -264,27 +263,6 @@ export class SweepSolid extends Entity
             p.applyMatrix4(this._Matrix);
         return pts;
     }
-    private GetEndPoints()
-    {
-        let pts = this._PathCurve.GetStretchPoints();
-        for (let p of pts)
-            p.applyMatrix4(this._Matrix);
-        let roMat = new Matrix4().extractRotation(this.OCS);
-        let z = this._PathCurve.GetFistDeriv(0).normalize().applyMatrix4(roMat);
-        let y = this.Normal;
-        let x = z.clone().cross(y);
-        let mat = new Matrix4().makeBasis(x, y, z);
-        mat.setPosition(this._PathCurve.StartPoint.applyMatrix4(this.OCS));
-
-        z = this._PathCurve.GetFistDeriv(this._PathCurve.EndParam).normalize().applyMatrix4(roMat);
-        x = z.clone().cross(y);
-        let mat2 = new Matrix4().makeBasis(x, y, z);
-        mat2.setPosition(arrayLast(pts));
-
-        let p2 = this._Contour.GetStretchPoints().map(p => p.applyMatrix4(mat));
-        let p3 = this._Contour.GetStretchPoints().map(p => p.applyMatrix4(mat2));
-        return [...pts, ...p2, ...p3];
-    }
     private UpdateEndMtx(dir: Vector3, pos: Vector3)
     {
         let y = this.Normal;
@@ -294,7 +272,7 @@ export class SweepSolid extends Entity
         tempMatrix1.makeBasis(x, y, z);
         tempMatrix1.setPosition(pos.applyMatrix4(this.OCS));
     }
-    private GetEndPoint2()
+    private GetEndPoint()
     {
         let conPts = this._Contour.GetStretchPoints();
         let cus: Curve[];
@@ -303,6 +281,8 @@ export class SweepSolid extends Entity
         else
             cus = [this._PathCurve];
 
+        let roMat = new Matrix4().extractRotation(this.OCS);
+
         const pts: Vector3[] = [];
 
         for (let i = 0; i < cus.length; i++)
@@ -329,14 +309,16 @@ export class SweepSolid extends Entity
 
             if (l2)
             {
-                let d2 = l2.GetFistDeriv(0).normalize();
+                let d2 = l2.GetFistDeriv(0).normalize().applyMatrix4(roMat);
+                d1.applyMatrix4(roMat);
                 d2.add(d1).normalize();
                 if (isParallelTo(d1, d2))
                     continue;
+                p.copy(l1.EndPoint);
                 //角平分线的平面;
-                let plane = new PlaneExt(d2, p);
+                let plane = new PlaneExt(d2, p.applyMatrix4(this.OCS));
                 let ps = conPts.map(p => p.clone().applyMatrix4(tempMatrix1));
-                pts.push(...ps.map(p => plane.intersectLine(new Line3(p, p.clone().add(d1)), new Vector3(), true)));
+                pts.push(...ps.map(p => plane.intersectLine(new Line3(p.clone().sub(d1.clone().multiplyScalar(-100)), p.clone().add(d1)), new Vector3(), true)));
             }
             else
             {

src/DatabaseServices/Entity/CompositeEntity.ts

@@ -1,7 +1,5 @@
 import { Matrix3, Object3D, Vector3 } from "three";
 import { arraySortByNumber, arraySum } from "../../Common/ArrayExt";
-import { DisposeThreeObj } from "../../Common/Dispose";
-import { tempMatrix1 } from "../../Common/Matrix4Utils";
 import { Object3DRemoveAll } from "../../Common/Dispose";
 import { ObjectSnapMode } from "../../Editor/ObjectSnapMode";
 import { RenderType } from "../../GraphicsSystem/RenderType";
@@ -103,11 +101,7 @@ export class CompositeEntity extends Entity
         let pts: Vector3[] = [];
         for (let e of this.Entitys)
         {
-            let oldOcs = (<CompositeEntity>e)._Matrix;
-            tempMatrix1.multiplyMatrices(this._Matrix, oldOcs);
-            (<CompositeEntity>e)._Matrix = tempMatrix1;
-            pts.push(...e.GetObjectSnapPoints(snapMode, pickPoint, lastPoint, viewXform));
-            (<CompositeEntity>e)._Matrix = oldOcs;
+            pts.push(...e.Clone().ApplyMatrix(this.OCS).GetObjectSnapPoints(snapMode, pickPoint, lastPoint, viewXform));
         }
         return pts;
     }