[Chimera-users] Showing data set axes

[Thomas Goddard]

Hi Jeff,

  Chimera supports a format for making geometric objects called BILD
described in the Chimera manual:

	http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/bild.html

Below is a 6 line BILD file that when opened in Chimera shows cylindrical
arrows for the X (red), (green), and Z (blue) axes in the style of the
program VMD.  I made the axes 20 units long, with radius 1 and cone shaped
tip with a radius of 2.

	Tom

-----
File axes.bld:

.color 1 0 0
.arrow 0 0 0 20 0 0 1 2
.color 0 1 0
.arrow 0 0 0 0 20 0 1 2
.color 0 0 1
.arrow 0 0 0 0 0 20 1 2




> From: Jeff
> To: "'Thomas Goddard'" <goddard at cgl.ucsf.edu>
> Subject: RE: Chimera length units
> Date: Thu, 2 Nov 2006 17:30:29 -0800
> 
> i figured some of that but is good to hear it from the source.
> 
> one last question - if i want to make an origin with axes (like a CAD
> program might have) so i don't get lost after rotating my volumes a jillion
> times and have to click 'orient', is there a way for me to make a
> marker-based model (two markers for each axis) and put it slightly
> off-origin (like in the -,-,- octant) so that i have a visual on my axes as
> i rotate the scene?
> 
> as in, is there a simple way for me to hand-write a marker model that i can
> just load and fix to the scene?
> 
> thanks,
> 
> -jeff