[Chimera-users] yet another chimera question...

Thomas Goddard goddard at cgl.ucsf.edu
Tue Jan 16 16:39:31 PST 2007

Hi Jeff,

   There is a button on the Per-Model Clipping dialog that lets you 
align the plane perpendicular to the screen.  There is no other 
capability for aligning the plane perpendicular to an axis.  I sometimes 
use this button in combination with keyboard shortcuts so (standard 
orientation), and x9, y9, z9 (rotate about x, y, or z axis by 90 
degrees).  You turn on keyboard shortcuts using menu entry Tools / 
General Controls / Accelerators On.  I have them turned on by default 
using the Preferences dialog.  With these shortcuts the clip plane can 
be oriented perpendicular to various axes although it is a bit complicated.

   Is part of your question that you also want to adjust the position 
where the plane intersects a given axis -- for example, a slider to move 
the plane keeping its orientation fixed, and report its position along 
the axis?  It is easy to add all those controls although it would 
greatly expand the per-model clipping dialog.  We would need some user 
interface that hides some of that complexity for users who do not need it.


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