diff --git a/__test__/DatabaseServices/EntityData.test.ts b/__test__/DatabaseServices/EntityData.test.ts
index bb734ed29..7873b1c5a 100644
--- a/__test__/DatabaseServices/EntityData.test.ts
+++ b/__test__/DatabaseServices/EntityData.test.ts
@@ -1,6 +1,7 @@
 import * as mst from 'mobx-state-tree';
+
 import { EntityData } from '../../src/DatabaseServices/EntityData';
-import * as THREE from 'three';
+
 test("Entity", () =>
 {
     let d = EntityData.create({ size: [0, 1, 2] })
@@ -11,7 +12,6 @@ test("Entity", () =>
     d.setSize(1, 1, 1000);
     console.log(d.getSize());
 
-
     expect(d.getSize().x).toBe(1);
 })
 
diff --git a/__test__/Geometry/orbit.test.ts b/__test__/Geometry/orbit.test.ts
index d17c28c7f..1e18ea296 100644
--- a/__test__/Geometry/orbit.test.ts
+++ b/__test__/Geometry/orbit.test.ts
@@ -27,7 +27,6 @@ test("测试平行", () =>
     orb.UpdateDirection(dir);
     expect(GeUtils.equal(dir, new THREE.Vector3(1, 0, 0))).toBe(true);
 
-
     //试试新的
     dir.set(0.5, 0.5, 0).normalize();
 
@@ -39,8 +38,6 @@ test("测试平行", () =>
     console.log('dir: ', dir);
     expect(GeUtils.equal(dir, dirc)).toBe(true);
 
-
-
     //试试新的
     dir.set(0.5, 0.5, 1).normalize();
     dirc = dir.clone();
@@ -62,4 +59,21 @@ test("测试平行", () =>
     orb.UpdateDirection(dir);
     console.log('dir: ', dir);
     expect(GeUtils.equal(dir, dirc)).toBe(true);
+
+
+    let newDir = orb.UpdateDirection();
+    console.log('newDir: ', newDir);
+
+
+    let up = Orbit.ComputUpDirection(new THREE.Vector3(0, 0, 1));
+    expect(GeUtils.equal(up, new THREE.Vector3(0, -1, 0))).toBe(true);
+
+    Orbit.ComputUpDirection(new THREE.Vector3(0, 0, -1), up);
+    console.log(up);
+
+    Orbit.ComputUpDirection(new THREE.Vector3(0, 0, 1), up);
+    console.log(up);
+
+    Orbit.ComputUpDirection(new THREE.Vector3(1, 0, 0), up);
+
 })
diff --git a/src/DatabaseServices/EntityData.ts b/src/DatabaseServices/EntityData.ts
index 0a9f29cfd..92324b7d2 100644
--- a/src/DatabaseServices/EntityData.ts
+++ b/src/DatabaseServices/EntityData.ts
@@ -28,7 +28,9 @@ export const EntityData = mst.types.model(
         return {
             setSize(x, y, z)
             {
-                self.size.clear().concat([x, y, z]);
+                self.size[0] = x;
+                self.size[1] = y;
+                self.size[2] = z;
             },
             setErase(isErase: boolean)
             {
diff --git a/src/Geometry/Orbit.ts b/src/Geometry/Orbit.ts
index f23102088..61daab1fe 100644
--- a/src/Geometry/Orbit.ts
+++ b/src/Geometry/Orbit.ts
@@ -33,13 +33,13 @@ 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;
     }
@@ -74,11 +74,11 @@ 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
         {
diff --git a/wallaby.conf.js b/wallaby.conf.js
new file mode 100644
index 000000000..eb5dae6a1
--- /dev/null
+++ b/wallaby.conf.js
@@ -0,0 +1,18 @@
+module.exports = function () {
+
+  return {
+    files: [
+        'tsconfig.json', // <--
+        'src/**/*.ts',
+        'src/**/*.js'],
+
+    tests: ['__test__/**/*.ts'],
+
+    env: {
+      type: 'node',
+      runner: 'node'
+    },
+
+    testFramework: 'jest',
+  };
+};
\ No newline at end of file