Rotate around 2 axes in VRsink

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Stefan Zeller
Stefan Zeller 2017-6-25
评论： Andreas Bernatzky 2018-4-25
Hello, is it possible to rotate a box around 2 axes separately by using the VR sink in Simulink? Because its just possible to have one input with the angle and one rotation axis. Thanks!

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回答（1 个）

Mandar Patwardhan
Mandar Patwardhan 2017-6-27
In order to rotate an object around 2 axes separately, use euler angles and convert 2 axes rotation into one quaternion and then provide this axis input to the VR Sink.
eul = [0 pi/2 0];
qZYX = eul2quat(eul);
Take the last three values of qZYX and provide them as axes for the VR Sink. Note that default order is ZYX for this function. so [0 pi/2 0] means 0 in Z, 90 is Y and 0 in X.
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Andreas Bernatzky
Andreas Bernatzky 2018-4-25
Hi Mandar,
I have one additional Question. If i have the passed Angle over time (in Rad) by two axes (x and y axis). I can directly go into eul=[0 passed Angle-Y passed Angle-X]; and use eul2quat(eul) afterwards and send it into vrsink. The problem is it looks kinda strange but your explanation seems really simple.

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