Re: Greyscale graphics

From: Stephane_Ethier AT unknown
Date: Wed Apr 05 1995 - 07:45:37 MDT


>
> I'm a new NCAR graphics user with a very simple question:
>
> Q. Is there any way to covert a color .ncgm file into a
> greyscale image in PostScript. I tried ctrans with the
> switch -d ps.mono, but it didn't work. You can try out
> the color contour colcon.ncgm (a tutorial example in the
> package). The command
>
> ctrans -d ps.mono -outfile colcon.ps colcon.ncgm
>
> gives a PostScript file all black as viewed via ghostview.
> (I don't know how it looks like as a hard copy, but the
> image viewd throu ghostview is so scary to print.)
>
> Any tip(s)/suggestion(s) is (are) appreciated.
>
>
> Cam Tran (trancv AT unknown) NRaD Code 761
> -----------------------------------------------------------
>

Try the ps.color device. All the colors are then going to be grey scaled
on your hardcopy from the printer. You may have to play with the colors
though because you can't really know which grey you are going to get for
a specified color.

Stephane Ethier
ethier AT unknown



This archive was generated by hypermail 2b29 : Wed Jun 28 2000 - 09:40:24 MDT