[Chimera-users] Feature Request: Expose rotation to python

Eric Pettersen pett at cgl.ucsf.edu
Tue Nov 29 10:25:31 PST 2005

On Nov 29, 2005, at 10:11 AM, Thomas Goddard wrote:

> Hi Charlie,
>   To set a model's transformation to the identity:
> 	identity = chimera.Xform()
> 	model.openState.xform = identity

The key thing to realize is that in a statement like:

	x = model.openState.xform

x is now a _copy_ of the transformation matrix -- making changes to  
this copy doesn't affect the actual transformation matrix.  To make  
the changes take effect you need to:

	<make changes to x>
	model.openState.xform = x

                         Eric Pettersen
                         UCSF Computer Graphics Lab
                         pett at cgl.ucsf.edu

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