[GRASS-SVN] r29723 - grass/branches/releasebranch_6_3/scripts/r.plane

svn_grass at osgeo.org svn_grass at osgeo.org
Wed Jan 16 13:36:15 EST 2008

Author: epatton
Date: 2008-01-16 13:36:15 -0500 (Wed, 16 Jan 2008)
New Revision: 29723

Corrected and expanded description text

Modified: grass/branches/releasebranch_6_3/scripts/r.plane/description.html
--- grass/branches/releasebranch_6_3/scripts/r.plane/description.html	2008-01-16 18:34:19 UTC (rev 29722)
+++ grass/branches/releasebranch_6_3/scripts/r.plane/description.html	2008-01-16 18:36:15 UTC (rev 29723)
@@ -4,15 +4,20 @@
 <EM>r.plane</EM> creates a tilted plane raster map given user-specified
 parameters for inclination, azimuth, and the geographic location of a
 point on the plane.<BR>
-The angle orientations of <em>azimuth</em> are: 0 degree = N, 90 degree = E etc.
+The angle orientations of the <em>azimuth</em> parameter increase counter-clockwise,
+i.e., 0 degree = N, 45 degree = NW, 90 degree = W etc.
+Increasing values of the <em>dip</em> parameter progressively lower (or dip) the northern
+half of the plane, and incline the southern half, assuming the <em>azimuth</em> parameter 
+is held constant at 0 degrees.
 <tt>g.region -c</tt> provides the easting and northing coordinates for
 the center of the current region.
 <em>int</em> maps take less disk space than <em>float</em>s, which in turn
-take up less space than <em>double</em>s. (but can be less exact)
+take up less space than <em>double</em>s (but can be less exact).

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