[GRASS-SVN] r51219 - grass/branches/releasebranch_6_4/raster3d

[svn_grass at osgeo.org]

Author: neteler
Date: 2012-03-31 03:32:51 -0700 (Sat, 31 Mar 2012)
New Revision: 51219

Modified:
   grass/branches/releasebranch_6_4/raster3d/raster3dintro.html
Log:
expanded

Modified: grass/branches/releasebranch_6_4/raster3d/raster3dintro.html
===================================================================
--- grass/branches/releasebranch_6_4/raster3d/raster3dintro.html	2012-03-31 09:01:09 UTC (rev 51218)
+++ grass/branches/releasebranch_6_4/raster3d/raster3dintro.html	2012-03-31 10:32:51 UTC (rev 51219)
@@ -12,6 +12,11 @@
 
 <h2>3D Raster data (voxel) in GRASS GIS</h2>
 
+GRASS GIS is one of the few GIS software packages with volume data support.
+Here data are stored as a 3D raster with a unit volume called a voxel
+(volume pixel). Voxels are designed to support representations of
+trivariate continuous fields. 
+
 <h3>3D Raster (voxel) import</h3>
 
 The module <a href="r3.in.ascii.html">r3.in.ascii</a> supports
@@ -38,6 +43,8 @@
 
 Powerful 3D map algebra is implemented in <a href="r3.mapcalc.html">r3.mapcalc</a>.
 
+A 3D groundwater flow model is implement in <a href="r3.gwflow.html">r3.gwflow</a>.
+
 <h3>Voxel conversion to vector or 2D raster maps</h3>
 
 3D vector point data can be converted to a GRASS 3D raster map
@@ -80,6 +87,6 @@
 
 <HR>
 <P><a href="index.html">Main index</a> - <a href="raster3D.html">raster3D index</a> - <a href="full_index.html">full index</a>
-<P>&copy; 2008-2011 <a href="http://grass.osgeo.org">GRASS Development Team</a></P>
+<P>&copy; 2008-2012 <a href="http://grass.osgeo.org">GRASS Development Team</a></P>
 </body>
 </html>