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Re: PNGs without X? [message #33757]

Tue, 21 January 2003 12:12

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Dr. Sven Geier (svenz@caltzech.edu) writes:

> So now I'm looking for some way to plot data into/onto a PNG (or GIF or JPG
> or whatever) without having an actual graphic server running

You might want to have a look at this article:

http://www.dfanning.com/graphics_tips/nowindow.html

Cheers,

David

--
David W. Fanning, Ph.D.
Fanning Software Consulting, Inc.
Phone: 970-221-0438, E-mail: david@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155

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Re: PNGs without X? [message #33758 is a reply to message #33757]

Tue, 21 January 2003 12:08

tam
Messages: 48
Registered: February 2000

Member

Dr. Sven Geier wrote:
...
> Anybody know how to do a standard run-of-the mill X-type plot into a file or
> into an array or into RAM or such?
>
> Thanks in advance...
>
> -- SG
>
>

I believe the Z-buffer plotting device can be used here. Just...
set_plot, 'Z'
... Do your plotting
z=tvrd()
write_png,...

The DEVICE options let you set the number of pixels in the image.

There are probably better or more modern ways to do this, but I think
this will at least get you started.

Good luck,
Tom McGlynn

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