Hi Bob and Angel,
So as I was writing a different reply about this issue, I realized the
centering
issue is for advanced POV-Ray users may be moot because the point at which the
molecule is centered is noted in the Scene description file in the
setPerspectiveState function, I think. It says 'center' with x,y,z coordinates
after it. Although it doesn't get used in the final POV-Ray scene that is the
center used for POV-Ray? Advanced users could then just move it back to center
for their uses and work with it from there, I believe? No calculation would be
necessary to add in Jmol and no need for an option for such a calculation in
the
Jmol POV-Ray output.
Bob - POV-Ray calls collections of prims objects and so when I edit the scene
file, the molecule becomes an object. That was what I meant by 'object' before.
Angel - I don't think excluding items not in the scene is much of a concern
because it will result in faster renders for most users and advanced users
going
to POV-Ray would have what they are concerned with in the initial Jmol scene
already and add in shadows of their own with their own lighting set ups. Unless
you mean it cuts off stuff obscured by other elements and that there is no
command you can issue to avoid this 'leaving out'? I have been setting
'highresolution on' from the amount I was able to rotate it looked like stuff
was behind where I could see but it was a pretty 'porous' molecule.
Thanks,
Wayne
-----------------------------
Message: 2
Date: Fri, 16 Jul 2010 05:47:52 -0500
From: Robert Hanson <[email protected]>
Subject: Re: [Jmol-users] idtf output for polyhedral structures
To: [email protected]
Message-ID:
<[email protected]>
Content-Type: text/plain; charset="iso-8859-1"
2010/7/16 Angel Herr?ez <[email protected]>
> So POV-Ray output uses screen coordinates, while VRML output uses 3d
> coordinates in the model's axes system. That's the difference between
> both types of exporters as I see it.
>
>
>
Yes, that's it. I wasn't imagining that people would go in and tweak the
POV-Ray scene and was thinking of it more as a fancy JPG image. One
difference in the coding is that the POV-Ray code saves hugely on file size
and processing time by excluding objects that are not in the frame. I know,
this means some shadows are lost. Still....
>
>
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