Rotating my volume using setUserMatrix results in a skewed volume

[lassoan (Andras Lasso)]

@shanebenlolo

However, my volume is still rotating around a point which is not at the center of my volume

Rotation happens around the origin. To rotate around an arbitrary point, translate to that point, apply the rotation, and translate back. You can simply call Translate(-c[0],-c[1],-c[2]), RotateX/Y/Z, Translate(c[0],c[1],c[2]), GetMatrix on vtkTransform to specify all the transforms and get the correct transformation matrix.

@shanebenlolo

similarly, if I run getOrientation() I recieve [undefined],

vtkTransform has no such method. Probably you meant GetOrientation.