fix #IPMHS 优化捕捉性能

src/Editor/PointPick.ts

@@ -26,11 +26,11 @@ export function GenerateRaycaster(ptVcs: Vector3, view: IViewer): Raycaster
  * @param {Object3D} [selectObject] 选择的对象. 如果为空则为app.view.scene
  * @returns {Object3D[]} 返回选择到的对象,注意该返回的对象并不会得到它的子对象.
  */
-export function PointPick(ptVcs: Vector3, view: IViewer, filter?: Filter, selectObject: Object3D = view.Scene): Object3D[]
+export function PointPick(ptVcs: Vector3, view: IViewer, filter?: Filter, selectObjects: Object3D[] = view.Scene.children): Object3D[]
 {
     let raycaster = GenerateRaycaster(ptVcs, view);
 
-    let intersection = Raycast(raycaster, selectObject.children, filter);
+    let intersection = Raycast(raycaster, selectObjects, filter);
     if (intersection.object)
         return [intersection.object];
 
@@ -40,7 +40,7 @@ export function PointPick(ptVcs: Vector3, view: IViewer, filter?: Filter, select
     let maxPt = pCenter.clone().add(selectSize);
 
     let selectBox = new SelectBox(view, minPt, maxPt, SelectType.C);
-    selectBox.Select(selectObject.children, filter);
+    selectBox.Select(selectObjects, filter);
 
     return selectBox.m_SelectList;
 }

src/Editor/SnapServices.ts

@@ -3,7 +3,7 @@ import { app } from '../ApplicationServices/Application';
 import { arrayRemoveIf } from '../Common/ArrayExt';
 import { ColorMaterial } from '../Common/ColorPalette';
 import { GetPointPrompt } from '../Common/InputState';
-import { FixIndex } from '../Common/Utils';
+import { FixIndex, GetEntity } from '../Common/Utils';
 import { Arc } from '../DatabaseServices/Arc';
 import { Curve } from '../DatabaseServices/Curve';
 import { Entity } from '../DatabaseServices/Entity';
@@ -20,6 +20,7 @@ import { PromptBlock } from '../UI/DynamicPrompt/PromptBlock';
 import { ObjectSnapMode } from './ObjectSnapMode';
 import { SelectPick } from './SelectPick';
 import { Circle } from '../DatabaseServices/Circle';
+import { PointPick } from './PointPick';
 
 /**
  * 轴线捕捉模式
@@ -226,12 +227,12 @@ export class SnapServices
         )
             return this.m_LastSnapEntityPoint;
 
-        //显示图元列表
+        let selectEns = PointPick(vcsP, app.m_Viewer, undefined, app.m_Viewer.VisibleObjects).map(GetEntity).filter(e => e !== undefined);
-        let visEns = app.m_Viewer.VisibleEntitys;
 
         //如果只有切线捕捉
+
         if (this.SnapModeEnable === ObjectSnapMode.Tan && !this.m_HasBasePoint)
-            for (let e of visEns)
+            for (let e of selectEns)
             {
                 if (e instanceof Circle || e instanceof Arc)
                 {
@@ -265,9 +266,9 @@ export class SnapServices
             if ((mode & this.SnapModeEnable) === 0)
                 continue;
 
-            for (let ei = 0, el = visEns.length; ei < el; ei++)
+            for (let ei = 0, el = selectEns.length; ei < el; ei++)
             {
-                let en = visEns[ei];
+                let en = selectEns[ei];
                 if (!en.Id || en.IsErase)
                     continue;
                 let sps = en.GetObjectSnapPoints(mode, wcsP, baseP, viewXform);
@@ -289,7 +290,7 @@ export class SnapServices
                                 if (mode === ObjectSnapMode.End)
                                     for (; ei < el; ei++)
                                     {
-                                        let en = visEns[ei];
+                                        let en = selectEns[ei];
                                         let sps = en.GetObjectSnapPoints(ObjectSnapMode.End, wcsP, baseP, viewXform);
                                         for (let i = 0, l = sps.length; i < l; i++)
                                         {
@@ -404,7 +405,7 @@ export class SnapServices
 
         //#region 最近点捕捉
         if (this.SnapModeEnable & ObjectSnapMode.Nea)
-            for (let en of visEns)
+            for (let en of selectEns)
             {
                 if (!en.Id || en.IsErase)
                     continue;

src/Editor/TranstrolControl/TransformServices.ts

@@ -53,7 +53,7 @@ export class TransformServicess implements EditorService
                 return;
             axes.Rest();
 
-            let objs = PointPick(ed.m_MouseCtrl.m_CurMousePointVCS, preView, undefined, axes);
+            let objs = PointPick(ed.m_MouseCtrl.m_CurMousePointVCS, preView, undefined, axes.children);
             if (objs.length === 1)
             {
                 let obj = objs[0];