[Chimera-users] Can I use "Chimera" to measure length of a VRML file?

Elaine Meng meng at cgl.ucsf.edu
Mon Sep 11 10:37:59 PDT 2006

In the previous message, I included links to the development  
documentation.  Because there have been recent changes in Volume Path  
Tracer, users should instead consult the documentation for Volume  
Path Tracer in the last production release of Chimera:


(or, use the Help menu in Chimera to access documentation that goes  
with your downloaded version)

Sorry about that,

On Sep 11, 2006, at 10:31 AM, Elaine Meng wrote:

> Hi Masako,
> You cannot measure distances on the VRML object directly in Chimera.
> However, you could use the Volume Path Tracer tool to place markers
> at the ends of the object, then measure the distance between the
> markers.
> Volume Path Tracer:
> http://www.cgl.ucsf.edu/chimera/docs/ContributedSoftware/
> volumepathtracer/framevolpath.html
> measuring distances:
> http://www.cgl.ucsf.edu/chimera/docs/ContributedSoftware/
> structuremeas/structuremeas.html#distances
> Or, for an indication of scale rather than a measurement, you could
> use the Scale Bar tool:
> http://www.cgl.ucsf.edu/chimera/docs/ContributedSoftware/scalebar/
> scalebar.html
> All these ways will show numbers based on the units of the VRML
> input.  So you would need to know whether those units were angstroms,
> nanometers, or something else.
> I hope this helps,
> Elaine

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