优化:避免缩放值为0

src/Editor/TranstrolControl/TransformServices.ts

@@ -927,11 +927,14 @@ export class TransformServicess implements EditorService
             app.Editor.MouseCtrl.EnableMouseUpDoit = false; //响应鼠标抬起就绘制
 
             if (scaleRes.Status === PromptStatus.OK)
+            {
+                if (!equaln(scaleRes.Distance, 0))
                 {
                     let mtx = matrixScale(scaleRes.Distance, pos);
                     for (let en of this._Ents)
                         en.ApplyMatrix(mtx);
                 }
+            }
 
             for (let en of this._Ents)
                 en.DrawObject.visible = true;