更新了ribit的测试文件. 修复了错误

__test__/Geometry/__snapshots__/orbit.test.ts.snap

@@ -0,0 +1,33 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`测试求向量 1`] = `
+Vector3 {
+  "x": 0,
+  "y": -1,
+  "z": 0,
+}
+`;
+
+exports[`测试求向量 2`] = `
+Vector3 {
+  "x": 0,
+  "y": -1,
+  "z": 0,
+}
+`;
+
+exports[`测试求向量 3`] = `
+Vector3 {
+  "x": 0,
+  "y": 1,
+  "z": 0,
+}
+`;
+
+exports[`测试求向量 4`] = `
+Vector3 {
+  "x": 0.7071067811865475,
+  "y": 0,
+  "z": 0.7071067811865475,
+}
+`;

__test__/Geometry/orbit.test.ts

@@ -1,7 +1,8 @@
 import { Orbit } from '../../src/Geometry/Orbit';
 import * as THREE from 'three';
 import { GeUtils } from '../../src/Geometry/GeUtils';
-test("测试平行", () =>
+import { Vector3 } from 'three';
+test("", () =>
 {
     //构造一个控制类.
     let orb = new Orbit();
@@ -62,4 +63,36 @@ test("测试平行", () =>
     orb.UpdateDirection(dir);
     console.log('dir: ', dir);
     expect(GeUtils.equal(dir, dirc)).toBe(true);
+
+
+    let newD = orb.UpdateDirection();
+    console.log(newD);
+    expect(GeUtils.equal(newD, new THREE.Vector3(0, 0, -1))).toBe(true);
+
+
 })
+
+
+test("测试求向量", () =>
+{
+    let dir = new THREE.Vector3(0, 0, 1);
+    let up = Orbit.ComputUpDirection(dir);
+
+    console.log(up);
+    expect(up).toMatchSnapshot();
+
+    Orbit.ComputUpDirection(dir, up);
+    console.log(up);
+    expect(up).toMatchSnapshot();
+
+    dir.z = -1;
+    Orbit.ComputUpDirection(dir, up);
+    console.log('up: ', up);
+    expect(up).toMatchSnapshot();
+
+    dir.x = 1;
+
+    Orbit.ComputUpDirection(dir, up);
+    console.log('up: ', up);
+    expect(up).toMatchSnapshot();
+})

src/Geometry/Orbit.ts

@@ -34,13 +34,13 @@ export class Orbit
     {
         let rtDir = dir ? dir : new THREE.Vector3();
 
-        dir.z = Math.sin(this.m_RoX);
+        rtDir.z = Math.sin(this.m_RoX);
 
         //归一化专用.
         let d = Math.abs(Math.cos(this.m_RoX));
 
-        dir.x = Math.cos(this.RoZ) * d;
-        dir.y = Math.sin(this.RoZ) * d;
+        rtDir.x = Math.cos(this.RoZ) * d;
+        rtDir.y = Math.sin(this.RoZ) * d;
 
         return rtDir;
     }
@@ -75,11 +75,11 @@ export class Orbit
         let upRes = up ? up : new THREE.Vector3();
         if (dir.equals(new THREE.Vector3(0, 0, -1)))
         {
-            upRes.set(0, 1, 0)
+            upRes.set(0, 1, 0);
         }
         else if (dir.equals(new THREE.Vector3(0, 0, 1)))
         {
-            upRes.set(0, -1, 0)
+            upRes.set(0, -1, 0);
         }
         else
         {