| 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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