选中对象，在旋转工具上双击，对象旋转：-30度，现在绘制完成立方体的上方（顶部）。

With the object selected double-click on the Rotate tool and rotate it -30 degrees. You have now created the top of your cube.

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您可以通过定义对象的绘制方式来旋转您的正方形。

You can rotate your square by defining how you draw your object.

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它们还可用于图形工作，如简化gui上对象的旋转。

They can also be used for graphics work, such as simplifying the rotation of objects on a GUI.

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