[GRASS-SVN] r40878 - grass/trunk/lib/gis

[svn_grass at osgeo.org]

Author: neteler
Date: 2010-02-08 12:11:30 -0500 (Mon, 08 Feb 2010)
New Revision: 40878

Modified:
   grass/trunk/lib/gis/datumtransform.table
Log:
added more explations

Modified: grass/trunk/lib/gis/datumtransform.table
===================================================================
--- grass/trunk/lib/gis/datumtransform.table	2010-02-08 17:11:23 UTC (rev 40877)
+++ grass/trunk/lib/gis/datumtransform.table	2010-02-08 17:11:30 UTC (rev 40878)
@@ -14,6 +14,8 @@
 # and will be presented to the user to select the most appropriate one for
 # his/her location. The "Where Used" and "Comment" fields should contain
 # information to aid in the user's decision.
+# If only the 7-parameter transformation is desired/known, add 99999 for
+# the 3 parameters in datum.table along with the correct ellipsoid.
 #
 # Any supplementary files needed by the PROJ.4 library (e.g. gridshift tables) 
 # should be placed in the directory $GISBASE/etc/nad/.