On 25 Jan, SUBSCRIBE JAVA3D-INTEREST peter wrote:
> dear all:
> i try to animate the process of unfolding a box, and the box is formed by six planes
>of rectangle. But when i rotate the rectangle with 90 degree along the share edge, it
>is found that the rectangle is rotate around the centre. It is roatate around centre
>with 90 degree ,but not the share edge.
> i try many method ,but still can't solve that, can anyone help me?
>
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maybe a gimbal lock problem ! search the net about euler angles and
gimbal lock.
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