[GRASS-SVN] r38666 - grass/trunk/raster/r.colors

[svn_grass at osgeo.org]

Author: hamish
Date: 2009-08-10 01:44:16 -0400 (Mon, 10 Aug 2009)
New Revision: 38666

Modified:
   grass/trunk/raster/r.colors/r.colors.html
Log:
+Nikos's inversion trick (merge from devbr6)

Modified: grass/trunk/raster/r.colors/r.colors.html
===================================================================
--- grass/trunk/raster/r.colors/r.colors.html	2009-08-10 05:42:18 UTC (rev 38665)
+++ grass/trunk/raster/r.colors/r.colors.html	2009-08-10 05:44:16 UTC (rev 38666)
@@ -217,6 +217,7 @@
 end
 </pre></div>
 
+
 <h2>EXAMPLES</h2>
 
 The below example shows how you can specify colors for a three category map,
@@ -244,7 +245,8 @@
 </pre></div>
 
 <p><br>
-To create a natural looking LUT for true map layer <i>elevation</i>, use the
+To create a natural looking lookup table (LUT) for true map layer
+<i>elevation</i>, use the
 following rules specification file. It will assign light green shades to the
 lower elevations (first 20% of the LUT), and then darker greens (next 15%, and
 next 20%) and light browns (next 20%) for middle elevations, and darker browns
@@ -261,7 +263,13 @@
 100% 255:255:100
 </pre></div>
 
+<p><br>
+To invert the current rules: 
+<div class="code"><pre>
+r.colors current_raster -n rast=current_raster
+</pre></div>
 
+
 <h2>SEE ALSO</h2>
 
 <em>