节点删除

src/core/ModelUtils.ts

@@ -5,6 +5,7 @@ import type Viewport from '@/core/engine/Viewport'
 import { computeBoundsTree, disposeBoundsTree } from 'three-mesh-bvh'
 import { Vector2 } from 'three/src/math/Vector2'
 import type Toolbox from '@/model/itemType/Toolbox.ts'
+import EventBus from '@/runtime/EventBus.ts'
 
 /**
  * 确保所有实体之间的关系满足一致性：
@@ -113,38 +114,35 @@ export function parseLineId(lineId): [LinkType, string, string] {
 }
 
 export function deletePointByKeyboard() {
-  system.msg('Delete not impleted yet')
-  // const viewport: Viewport = window['viewport']
-  // if (!viewport) {
-  //   system.msg('没有找到当前视图')
-  //   return
-  // }
-  //
-  // // 按下 Delete 键，删除当前选中的点
-  // if (!viewport.state.selectedObject) {
-  //   system.msg('没有选中任何点')
-  //   return
-  // }
-  //
-  // const selectedObject = viewport.state.selectedObject
-  // if (!(selectedObject instanceof THREE.Object3D)) {
-  //   system.msg('选中的对象不是有效的点')
-  //   return
-  // }
-  //
-  // if (!selectedObject.userData?.type) {
-  //   system.msg('选中的对象没有类型信息')
-  //   return
-  // }
-  //
-  // const toolbox: Toolbox = viewport.toolbox[selectedObject.userData.type]
-  // if (!toolbox) {
-  //   system.msg('没有找到对应的工具箱')
-  //   return
-  // }
-  //
-  // viewport.state.cursorMode = 'normal'
-  // toolbox.deletePoint(selectedObject)
+  const viewport: Viewport = window['viewport']
+  if (!viewport) {
+    system.msg('没有找到当前视图')
+    return
+  }
+
+  const entityId = viewport.state.selectedEntityId
+  if (!entityId) {
+    system.msg('没有选中任何点')
+    return
+  }
+
+  const stateManager = viewport.stateManager
+  viewport.stateManager.beginStateUpdate()
+  _.remove(stateManager.vdata.items, (item) => item.id === entityId)
+  viewport.stateManager.endStateUpdate()
+
+  if (viewport.state.selectedEntityId === entityId) {
+    viewport.state.selectedObject = undefined
+    viewport.state.selectedItem = undefined
+    viewport.state.selectedEntityId = undefined
+    viewport.state.selectedObjectMeta = undefined
+  }
+
+  EventBus.dispatch('entityDeleted', {
+    deleteEntityId: entityId
+  })
+
+  system.msg('删除完成')
 }
 
 export function escByKeyboard() {

src/core/controls/SelectInspect.ts

@@ -1,11 +1,9 @@
 import * as THREE from 'three'
 import type IControls from './IControls'
-import { watch } from 'vue'
 import type Viewport from '@/core/engine/Viewport'
 import { Line2 } from 'three/examples/jsm/lines/Line2.js'
 import { LineGeometry } from 'three/examples/jsm/lines/LineGeometry.js'
 import { LineMaterial } from 'three/examples/jsm/lines/LineMaterial.js'
-import { getItemTypeByName } from '@/model/itemType/ItemTypeDefine.ts'
 import EventBus from '@/runtime/EventBus'
 
 let pdFn, pmFn, puFn
@@ -66,6 +64,15 @@ export default class SelectInspect implements IControls {
     EventBus.on('selectedObjectChanged', (data) => {
       this.updateSelectionBox(this.viewport.state.selectedObject)
     })
+
+    EventBus.on('entityDeleted', (data) => {
+      const id = data.deleteEntityId
+
+      // 如果删除的是当前选中对象，则清除选中状态
+      if (this.viewport.state.selectedEntityId === id) {
+        this.updateSelectionBox(null)
+      }
+    })
   }
 
   /**
@@ -74,6 +81,10 @@ export default class SelectInspect implements IControls {
   updateSelectionBox(selectedObject: THREE.Object3D) {
     this.disposeSelectionBox()
 
+    if (!selectedObject) {
+      return
+    }
+
     const expandAmount = 0.2 // 扩展包围盒的大小
     // 避免某些蒙皮网格的帧延迟效应(e.g. Michelle.glb)
     selectedObject.updateWorldMatrix(false, true)

src/core/manager/StateManager.ts

@@ -424,7 +424,7 @@ export default class StateManager {
    * @private
    */
   private fullSync() {
-
+    // 修补关系数据, 确保 center / in / out 关系满足一致性
     this.vdata.items = ensureEntityRelationsConsistency(this.vdata.items)
 
     this.entityManager.beginEntityUpdate()

src/runtime/EventBus.ts

@@ -2,7 +2,7 @@ import mitt from 'mitt'
 
 const instance = mitt()
 
-export type DispatchNames = 'selectedObjectChanged' | 'catalogChanged' | 'dataLoadComplete'
+export type DispatchNames = 'selectedObjectChanged' | 'catalogChanged' | 'dataLoadComplete' | 'entityDeleted'
 
 export default {
   dispatch(name: DispatchNames, data?: any) {