Rotate transform.

[Toto RoToTO]

I would like to know how could I retrieve the rotation center for a transformation matrix (rotation matrix), applied to an art object.

Thx.
Thomas.

[A. Patterson]

If you have the matrix, AIRealMath.h has methods for pulling out the rotation. That said, I'm not sure how one gets the transformation matrix of an art object.

[Toto RoToTO]

yep, we could retrieve rotation component of a transformation matrix (angle in radians).

But how could we retrieve the rotation point (center) o fthis transformation for a given transformation matrix!

It's a bit tricky!

Depends on object type transformation matrix could be retrieved! see sdk!

[A. Patterson]

I don't think there's a way to get the rotation pont of a matrix, is there? I mean if you took a transformation matrix, a rotation matrix and anothe transformation matrix and concatonated them all together, wouldn't it be impossible to pull them apart again? Maybe it is, but I'm drawing a blank.