feat(All):Initial

2025-10-04 23:36:07 +08:00
commit 2b4e5d2668
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+/**
+ * @author ErSan
+ * @email  mlt131220@163.com
+ * @date   2024/5/21 22:08
+ * @description 带线框子模型的Mesh对象
+ */
+import {Mesh, Material, BufferGeometry, MeshBasicMaterial, LineSegments, LineBasicMaterial, EdgesGeometry} from 'three';
+import {useDispatchSignal} from "@/hooks";
+
+export function materialProxy(lineMesh: LineMesh) {
+    return new Proxy(lineMesh, {
+        set(target: LineMesh, p: string, newValue: any): boolean {
+            if(p === 'material'){
+                (<LineBasicMaterial>(<LineSegments>target.children[0]).material).dispose();
+                target.children = [];
+
+                // 更新场景树
+                useDispatchSignal("sceneGraphChanged");
+            }
+
+            target[p] = newValue;
+
+            return true;
+        }
+    })
+}
+
+export class LineMesh extends Mesh {
+    constructor(geometry = new BufferGeometry(), material: Material = new MeshBasicMaterial(), color = 0x00ffff) {
+        super(geometry, material);
+
+        // @ts-ignore
+        this.type = 'LineMesh';
+
+        const edges = new EdgesGeometry(geometry);
+        const edgesMaterial = new LineBasicMaterial({
+            color: color,
+        })
+        const line = new LineSegments(edges, edgesMaterial);
+
+        // let geometryArray = [geometry,edges];
+        // let materialArray = [material,edgesMaterial];
+        // const mergedGeometries = BufferGeometryUtils.mergeGeometries(geometryArray, false);
+        // const lineMesh = SceneUtils.createMultiMaterialObject(mergedGeometries, materialArray);
+        //
+        // this.parent?.add(lineMesh);
+        // this.removeFromParent();
+
+        this.add(line)
+    }
+
+    proxyMesh = materialProxy(this);
+}
+