[GRASSLIST:715] Re: Background color & d.his

[Glynn Clements]

javier garcia - CEBAS wrote:

> The problem is when I use d.his, because this command doesn't allow to use a 
> color for nulls or to use -o to do nothing with nulls.
> 
> So, my question is:
> Is it possible to get a new map with the output of d.his?

Yes, with r.his.

> Or
> Do you have any idea about how get a whole black background (including nulls) 
> with d.his?

If you have the source, the attached patch makes "d.his -n" behave
like "d.rast -o".

-- 
Glynn Clements <glynn.clements at virgin.net>

-------------- next part --------------
--- src/display/d.his/cmd/main.c~	Thu May 16 12:06:18 2002
+++ src/display/d.his/cmd/main.c	Mon Jul 14 16:58:33 2003
@@ -188,6 +188,8 @@
 	make_gray_scale(&gray_colors) ;
 	D_set_colors_RGB();
 
+	D_set_overlay_mode(nulldraw->answer ? 1 : 0);
+
 	/* Now do the work */
 	intensity =  255 ;  /* default is to not change intensity */
 	saturation = 255 ;  /* default is to not change saturation */