Re: Argh - vector problem
Fred
If your rotation is about the y axis, then you can do the dot product in the xz plane to find the angle of rotation
acos(dot([x',z'],[x,z])/(norm([x',z'])*norm([x,z]))
(I haven't worried about Matlab syntax too much here!
The general case is more complicated.
Also be careful, I think your rotation goes -10 degrees about y, make sure you have a right hand set.
Valerie
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... So if you make the dot product of this vector with the target position, ... what i must do is find the plane that the rotation is in, ... axis i want to rotate around. ... the above code will not return a proper angle unless ...
(microsoft.public.win32.programmer.directx.graphics) |
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