🚀 go-pugleaf

In article <686@trwacs.fp.trw.com>
	george@trwacs.fp.trw.com (George Fletcher) writes:
>I am having some significant problems trying to display application defined
>colors in a PEX window.  It seems that no matter what color models I use or
>what colors I define I always end up with the same colors.  My current
>sequence of step follows.  Any help would be greatly appreciated.
>
>	Open Phigs
>
>	Open Workstation (phigs_ws_type_x_drawable)
>
>	Set Workstation color model to RGB
>
>	Allocate (using pset_colr_rep) all colors currently
>	   residing in the X colormap

I don't know why you're doing this.  The PHIGS pipeline uses floating
point values for all colors until the last stage when it picks the
appropriate pixel (X colormap index for pseudocolor windows) for that
color.  Picking the appropriate pixel value on an 8-bit PC system,
usually involves having the colormap setup as a 3/3/2 bit RGB allocation
along with dithering.  Just specify the colors using RGB floats and
the last stage of the rendering pipeline will select the appropriate X
"pixel" value based on the colormap and the dithering involved (if
any).

>	Set polyline list colors with RGB values
>
>	Display the polyline
>
>The sets of lines do not show up in the colors specified.

Check to make sure you're specifying the polyline colors properly.  I
can post a code example of how to do this if it would help.

						-- Rich
-- 
	Repeal the personal income tax; vote Libertarian in 1992.
Disclaimer: I speak for myself, except as noted; Copyright 1992 Rich Thomson
UUCP: ...!uunet!dsd.es.com!rthomson			Rich Thomson
Internet: rthomson@dsd.es.com	IRC: _Rich_		PEXt Programmer