VMD-L Mailing List

From: Lixia Jin Day (ljin12_at_asu.edu)
Date: Fri Apr 04 2008 - 17:42:08 CDT

John,

I used Tachyon and got two files: plot.dat and plot.dat.bmp. The
plot.dat.bmp is a little bigger than the snapshot bmp file. They have
similar qualities when viewing in photoshop. I cannot zoom in 200% and still
have smooth figures. My molecules are in tube and VMD.

I also downloaded POV-Ray and rendered in pov then ran POV-Ray to get a bmp
file. It even has a worse quality.
I believe there is some techniques that I don't know. What do you think my
problem is?

I want to have a figure that I can zoom in 400%+.

Thanks!

Lixia

On Fri, Apr 4, 2008 at 2:36 PM, John Stone <johns_at_ks.uiuc.edu> wrote:

>
> Hi,
> The "Snapshot" renderer simply captures the on-screen image, so
> the only thing that matters there is how large the display window is.
>
> The resolution controls in the graphical representations window change
> the _geometric_ resolution of the polygonal model of the molecular
> structure,
> but not the image resolution.
>
> If you want to generate high resolution images for printing, you'll
> likely want to use one of the external renderers. I'd suggest starting
> out with Tachyon as it is included with VMD and should be pretty easy to
> use in a manner similar to what you've been doing already with the
> Snapshot
> renderer.
>
> I'd strongly recommend that you take a look at the VMD Image and Movies
> tutorial for more guidance:
>
> http://www.ks.uiuc.edu/Training/Tutorials/vmd-ref/imgmv/tutorial-html/index.html
>
> Cheers,
> John Stone
> vmd_at_ks.uiuc.edu
>
>
> On Fri, Apr 04, 2008 at 02:27:04PM -0700, Lixia Jin Day wrote:
> > When I render to BMP it always gives the same size(resolution) figures
> no
> > matter what resolution I set in Graphical representations.
> > When I render to PS, the figure is not very smooth though the resolution
> is
> > high.
> > I don't know other render formats.
> >
> > What is the best way to render figures for publication? Thanks!
> >
> > Lixia
>
> --
> NIH Resource for Macromolecular Modeling and Bioinformatics
> Beckman Institute for Advanced Science and Technology
> University of Illinois, 405 N. Mathews Ave, Urbana, IL 61801
> Email: johns_at_ks.uiuc.edu Phone: 217-244-3349
> WWW: http://www.ks.uiuc.edu/~johns/ Fax: 217-244-6078
>