| Re: An IDL cron job, true color plots, Xvfb, Z-buffer, and all sorts of troubles [message #58667 is a reply to message #58592] |
Fri, 08 February 2008 08:06   |
David Fanning
Messages: 11724
Registered: August 2001
|
Senior Member |
|
|
Kathryn writes:
> For example, if I use the modified version of my stupid plotting
> procedure that was in David's reply (running interactively, using X
> windows), I have a couple of additional problems. First, I downloaded
> FSC_COLOR so that I could use the annotatecolor option to colorbar.
> However, the call as it stands in colorbar (which I also just re-
> downloaded, to make sure I had the current version) leaves me with a
> syntax error in FSC_COLOR, supposedly to do with the filename argument
> in the call:
> theColor = PickColorName(Filename=filename, _Extra=extra,
> Cancel=cancelled)
More likely that PickColorName is not in your path. Maybe
you didn't download it. I use the Library to build programs
in the Library, so...
http://www.dfanning.com/programs/coyoteprograms.zip
>
> Furthermore, if I try to use the Z buffer and TVREAD to solve my
> problem, for example:
> set_plot, 'Z'
> plot_test, [0,2],[0.3,2.5]
> tvread(/png, filename='plot_test',/nodialog)
>
> My plot comes out with a blue background, invisible axes, and red
> annotation on the colorbar. So clearly I'm still missing something
> with respect to specifying the colors.
Well, I think you forgot to specify them. This would be what
I would expect for that color table 33 you were using the other
day and this code.
Something like this should work better:
set_plot, 'Z'
tvlct, 255, 255, 255, 1 ; White
tvlct, 0, 0, 128, 2 ; Navy Blue
tvlct, 205, 92, 92, 3, ; Indian Red
Plot, [0,2],[0.3,2.5], Background=1, Color=2, /NoData
OPlot, [0,2],[0.3,2.5], Color=3
void = tvread(/png, filename='plot_test',/nodialog)
> To be sure I wasn't screwing something up with calls in my
> startup file, I commented out all graphics-related things prior to
> testing the above snippet.
There's your problem! ;-)
> Thanks to everyone on this newsgroup for always being so generous with
> suggestions,
I thought I might have been too harsh yesterday in my assessment
of your program, but you seem to be bucking up. Hang in there,
you are just an Ah-ha moment away! :-)
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")
|
|
|
|
comp.lang.idl-pvwave archive
Members
Search
Help
Login
Home
