Gray scale

[Malcolm Williamson]

Hi, Simon In order to display 256 gray shades you need to be running your
grass monitor in "float" colormode (d.colormode float; d.erase).
Unfortunately, the XDRIVER_24bit doesn't support this. You'll need to set
your computer display to 8-bit and run the regular 8-bit XDRIVER.

So, how's about it, folks? What GRASS desperately needs is a proper 
24-bit display. My $.02.
--
Malcolm D. Williamson - GIS Specialist         E-mail: malcolm at cast.uark.edu
Center for Advanced Spatial Technologies        Phone: (501) 575-6159
Ozark Rm. 12                                      Fax: (501) 575-5218 
University of Arkansas              
Fayetteville, AR 72701                            Web: http://www.cast.uark.edu

 
On Wed, 9 Sep 1998, J.Simon Goodall wrote:

> Why are images imported with r.in.tif displayed in only about 4 shades of
> gray when my X display is working at 16bpp and I'm using the
> XDRIVER_24bit? Is there a way to get al 256 shades displayed or do I have
> to go to X with 24bit ( it'd be 800x600)?
> 
> I'm trying to overlay and georeference these images to the underlying spot
> and it looks very wierd
> 
> Thanks in advance
> 
> 
> Simon. 
> 
> 
> 
> ---------------------------
> J.Simon Goodall, Lic.
> Ea.Viamonte, C.C.8,
> 9420 Rio Grande, 
> TDF, Argentina
> sgoodall at netcombbs.com.ar
> te 54.964.30.861 fx 22.008
> 
>