[Chimera-users] Alter both clipping planes at same time?

Elaine Meng meng at cgl.ucsf.edu
Thu May 5 08:57:49 PDT 2016

Ah yes, it is the somewhat obscure “section” command!


Thus you can avoid the hand-over-hand crossover problems with interleaving movements of hither and yon.

Elaine C. Meng, Ph.D. 
UCSF Computer Graphics Lab (Chimera team) and Babbitt Lab
Department of Pharmaceutical Chemistry
University of California, San Francisco

> On May 5, 2016, at 8:52 AM, Oliver Clarke <olibclarke at gmail.com> wrote:
> Hi, is there any way to alter both global clipping planes at the same time?
> This is handy to move the current viewable section, without altering its thickness.
> At the moment I use an alias for this:
> # move both clip planes hither or yon.
> # Usage: zslab x
> # Move hither and yon clip planes towards (positive) or away (negative)
> alias ^zslab clip hither $1; clip yon $1
> This works fine, except when the clip planes are close together - in that case, I get an error stating that I'm trying to move the near clip plane behind the far clip plane. It would be nice to have an option to move both planes at once - e.g. maybe changing the syntax of clip so either hither, yon, or both can be specified in the same command would be possible?
> Cheers,
> Oliver.

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