| the dreaded issue: colors [message #15695] |
Fri, 04 June 1999 00:00  |
D. Mattes
Messages: 14
Registered: May 1999
|
Junior Member |
|
|
IDL gurus (and there are many of you!):
it appears that when IDL first starts, !D.N_COLORS and !D.TABLE_SIZE are
both 256 for my 8-bit display, and don't actually report the number of
colors in the shared color table, until a window or device has been
opened. how can i get around this "feature"? i suppose i could open and
close a window before querying these system variables...
also: static color tables are a drag on the mac!!! why won't the
following work on a mac?
loadct,3,ncolors=100,bottom=0
loadct,1,ncolors=100,bottom=100
and how can i implement such a beast on the mac?
by the way, that was a very helpful discussion on IDL variables...much
appreciated!
thanks again,
david mattes
|
|
|
|
| Re: the dreaded issue: colors [message #15734 is a reply to message #15695] |
Thu, 10 June 1999 00:00  |
David Foster
Messages: 341
Registered: January 1996
|
Senior Member |
|
|
D. Mattes wrote:
>
> IDL gurus (and there are many of you!):
>
> it appears that when IDL first starts, !D.N_COLORS and !D.TABLE_SIZE are
> both 256 for my 8-bit display, and don't actually report the number of
> colors in the shared color table, until a window or device has been
> opened. how can i get around this "feature"? i suppose i could open and
> close a window before querying these system variables...
>
David -
You could put something like the following in your "idl_startup" file:
window, xsize=5, ysize=5, /pixmap, /free
wdelete
and this will do the trick. I often use this when I need to define
default fonts and the like in the startup file, and don't want
that nagging "IDL 0" window to come up.
Dave Foster
--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~
David S. Foster Univ. of California, San Diego
Programmer/Analyst Brain Image Analysis Laboratory
foster@bial1.ucsd.edu Department of Psychiatry
(619) 622-5892 8950 Via La Jolla Drive, Suite 2240
La Jolla, CA 92037
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~
|
|
|
|
comp.lang.idl-pvwave archive
Members
Search
Help
Login
Home
