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参考
物体模式和编辑模式
轴心点(Pivot Point) ‣ 3D游标(3D Cursor)
Period
3D游标是最直观的轴心点。选择3D游标作为活动的轴心点(从 编辑器标题栏 或 Period 选择),只需定位3D游标,然后进行所需的变换。所有的旋转和缩放变换现在将相对于3D游标的位置完成。
The image below shows the difference when rotating an object around the median point (right) and around the 3D cursor (left).
围绕3D游标旋转与质心点旋转的对比。¶