| Re: IDL and mac-eXodus (was IDL and MacX) [message #3832] |
Thu, 16 March 1995 20:12 |
rep2857
Messages: 28
Registered: December 1994
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Junior Member |
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In article <3k6ghd$3lv@kwuz.nerc-keyworth.ac.uk>,
Fergus Gallagher <F.Gallagher@nerc.ac.uk> wrote:
>>
> Some of my collegues have just started using eXodus on there
> spanking new 7100 PowerPCs.
>
...
> But the color tables are strange. For example, Xloadct color
...
>
> Anyone know about this?
>
Cc'd to F.Gallagher@nerc.ac.uk
Yup, sure do. Select the "Screen Editor..." line in the "Settings"
menu of eXodus. The "Color Matching Tolerance" selection is probably
set to "Normal" or "Highly Tolerant". Change it to "Exact Match" and
you'll get the full color range you're expecting. The rest of the Mac
suffers from the loss of color when you do this, but it's nothing the
"Monitors" control panel can't handle.
Mike Schienle Hughes Santa Barbara Research Center
rep2857@sbsun0010.sbrc.hac.com 75 Coromar Drive, M/S B28/87
Voice: (805)562-7466 Fax: (805)562-7881 Goleta, CA 93117
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| Re: IDL and mac-eXodus (was IDL and MacX) [message #3848 is a reply to message #3832] |
Wed, 15 March 1995 06:54  |
rivers
Messages: 228
Registered: March 1991
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Senior Member |
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In article <3k6ghd$3lv@kwuz.nerc-keyworth.ac.uk>, Fergus Gallagher <F.Gallagher@nerc.ac.uk> writes:
>>
> Some of my collegues have just started using eXodus on there
> spanking new 7100 PowerPCs.
>
> IDL initialises (pseudocolor=8) with 224 cols,
> (!d.colors=!d.table_size=224) which is normal for OpenWindows.
> But the color tables are strange. For example, Xloadct color
> tables are strangely banded: CT 0 (black-white) has 16 equal
> bands but some of the others have more bands but with non-uniform
> widths.
>
I use eXodus with IDL a lot. I have it set up as following:
Backing store support: Use when mapped
Colors: 256 colors
Color matching tolerance: Exact color match
I only have IDL ask for 64 colors. Here is the result of HELP, /DEVICE when I
us eXodus on my PowerPC as the server:
Server: X11.0, eXodusPowerPC 5.1 (� White Pine Software, Inc.,1994), Releas
e 5000
Display Depth, Size: 8 bits, (1024,748)
Visual Class: PseudoColor (3)
Bits Per RGB: 8
Physical Color Map Entries (Used / Total): 64 / 256
Colormap: Shared, 64 colors. Translation table: Enabled
Graphics pixels: Combined, Dither Method: Ordered
Write Mask: 255 (decimal) ff (hex)
Graphics Function: 3 (copy)
Current Font: <default>
Default Backing Store: Req from Server.
Window Status: ---------------------
id typ( x, y, backing store) id typ( x, y, backing store)
0: Win( 640, 512, Req from Server)
When I display an image in a window it works fine. However, xloadct gives the
banding effect which you describe UNTIL I CLICK IN THE MAIN IMAGE WINDOW. That
causes the banding to go away. There appears to be something different about
the color strip which xloadct displays from a main IDL window with images in
it. I have not investigated it further.
____________________________________________________________
Mark Rivers (312) 702-2279 (office)
CARS (312) 702-9951 (secretary)
Univ. of Chicago (312) 702-5454 (FAX)
5640 S. Ellis Ave. (708) 922-0499 (home)
Chicago, IL 60637 rivers@cars3.uchicago.edu (Internet)
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