GRASS4.0 Under openwindows 3.0

To add a comment to what Julian Ray has noted, when I was running
on the same conditions (sparc2/sunos 4.1.2/openwin 3)
and using the newer version of XDRIVER from the updates on the moon,
I didn't get the "flashing" that was typical before, but
the black color was more gray than black. So, when I did a "d.erase
black", I got a murky gray screen. Other colors looked
a bit washed out as well, compared to how I remember them from
using XDRIVER previously... I was guessing that the flashing was
eliminated by trying to fit the grass colors in with the existing
colormap. I haven't done a lot of experimentation since getting the
newer version of XDRIVER, but I thought I would pass this comment
along since the topic came up in the mail queue.

Chris Rewerts (rewerts@ecn.purdue.edu)

From lists-owner@amber.cecer.army.mil Tue Feb 25 22:41:02 1992
From: jray <jray@utkux1.utk.edu>

Ive just installed grass4.0 on a Sparc2 running SunOS 4.1.2 and OpenWindows 3.0
and everything seems to work fine with one exception: the colour pallete used
by the XDRIVER and openwindows are different. Although the system works it
creates a nuisance by "flashing" the screen colours from one colour map to
the other as the mouse moves between the canvas and the windows. Thus, the
colours on the canvas are incorrect with respect to the selected colours
until the mouse is positioned in to the active frame whereupon the rest of
the monitor takes on a rather gastly appearence.

Is there a fix for this or is it a problem with the owm driver?

Julian Ray
Transportation Research Center
University of Tennessee
Knoxville.

I have experienced this flashing too, using the newest XDRIVER but
on ( sparc1+/sunos 4.1.1/openwin 2). I will change next week or so to
openwin 3 and 4.1,2.

This flashing occurs only when I run in d.colormode float. When I us
colormode fixed is it ok. I could be worth to mention that if you run
d.display, that program sets the colormode automaticly to float mode.

Lars

National Land Survey of Sweden Dept. of Photogrammetry
R&D Departmant Royal Inst. of Technology
S-80112 Gavle, Sweden 10044 Stockholm, Sweden

larss@lmv.lm.se larss@fmi.kth.se