In a previous blog, we know how to rotate the object, if forgotten, then point here .
In the main toolbar, choose "Select and Rotate" tool.
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At this time, we will find around the object appeared coordinate system.
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For example, you want to rotate along the x axis, the x-axis to move the mouse, drag the mouse and hold down the left, then it will follow the rotational direction of the x-axis.
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y and z-axes is the same reason.
Reproduced in: https: //www.jianshu.com/p/49d0ac321b64