实现板件倒角

types/Geometry/Plane.d.ts

@@ -1,6 +1,7 @@
 import { Line3, Plane, Ray, Vector3 } from "three";
 export declare class PlaneExt extends Plane {
     constructor(normal?: Vector3, constant?: number | Vector3);
+    parseConstantFromPoint(constant: Vector3): void;
     intersectLine(line: Line3, optionalTarget?: Vector3, extendLine?: boolean): Vector3;
     intersectRay(ray: Ray, optionalTarget?: Vector3, extendLine?: boolean): Vector3;
 }