question about yaw, pitch, roll
Hello
I have a question about the command <viewpoint>.rotate(x,y,z,angle). It's said x specifies yaw, y specifies pitch, and z specifies roll. Also viz.get(viz.HEAD_EULER) returns the same order.
my code is:
view = viz.get(viz.MAIN_VIEWPOINT)
view.rotate(1,0,0, 90)
pe = viz.get(viz.HEAD_EULER)
print 'orientation of viewpoint is at: ', pe[0], ', ', pe[1], ', ', pe[2]
It's supposed to change orientation in yaw (vertical axis), and get result (90.0, 0.0, 0.0). But my result is (0.0, 90.0, 0.0).
Then I tried other two directions:
If: view.rotate(0,1,0, 90)
then result is: (90.0, 0.0, 0.0)
If: view.rotate(0,0,1 90)
then result is: (0.0, 0.0, 90.0)
It seems the yaw and pitch values somehow switch each other. Only roll value is what I expected. Can anybody tell me what happened?
Thanks a lot.
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