Merge branch 'master' into select-block

dist/PointPick.d.ts

@@ -0,0 +1,12 @@
+import { Mesh } from "three";
+import { Viewer } from ".";
+/**
+ * 点选
+ *
+ * @export
+ * @param {Viewer} view
+ * @param {number} ptx
+ * @param {number} pty
+ * @returns {(Mesh | undefined)}
+ */
+export declare function PointPick(view: Viewer, ptx: number, pty: number): Mesh | undefined;