新增绘制捕捉点光标

src/Editor/GetPointServices.ts

@@ -8,7 +8,6 @@ import { Line } from '../DatabaseServices/Entity';
 import { angle, equaln, fixAngle, Intersect } from '../Geometry/GeUtils';
 import { PromptPointResult, PromptStatus } from './PromptResult';
 
-
 /**
  * 为拾取点提供服务,提供一个类以供Editor引用.
  * 
@@ -156,8 +155,31 @@ export class GetPointServices
     {
         //清理原先画的辅助线
         this.DestroySnapLine();
+
         let preView = app.m_Viewer.m_PreViewer;
 
+        //绘制捕捉光标列表
+        for (let snapP of this.m_SnapPtList)
+        {
+            let lines = preView.DrawCross(5, preView.m_BlueDashMaterial);
+            let p = snapP.clone();
+
+            app.m_Viewer.WorldToScreen(p);
+            preView.ScreenPointToViewerPoint(p);
+
+            let move = new THREE.Matrix4();
+            move.setPosition(p);
+            for (let l of lines)
+            {
+                l.applyMatrix(move);
+
+                this.m_SnapAxisBlueLine.push(l);
+
+                preView.Scene.add(l);
+            }
+        }
+
+
         //如果存在捕捉
         if (app.m_Viewer.m_PreViewer.m_LastSnapPoint)
         {

src/GraphicsSystem/PreViewer.ts

@@ -172,6 +172,17 @@ export class PreViewer
         geometry.computeLineDistances();
         return new THREE.Line(geometry, material);
     }
+
+    //绘制×光标
+    DrawCross(size: number, material?: THREE.LineBasicMaterial | THREE.LineDashedMaterial): THREE.Line[]
+    {
+        return [
+            this.DrawLine(new THREE.Vector3(0, 0, 0), new THREE.Vector3(0, -size, 0), material),
+            this.DrawLine(new THREE.Vector3(0, 0, 0), new THREE.Vector3(0, size, 0), material),
+            this.DrawLine(new THREE.Vector3(0, 0, 0), new THREE.Vector3(size, 0, 0), material),
+            this.DrawLine(new THREE.Vector3(0, 0, 0), new THREE.Vector3(-size, 0, 0), material)
+        ]
+    }
     DrawLineFromWcs(p1: THREE.Vector3, p2: THREE.Vector3, material?: THREE.LineBasicMaterial | THREE.LineDashedMaterial): THREE.Line
     {
         material = material ? material : this.m_LineMaterial;