[GRASS-SVN] r72272 - grass/trunk/vector/v.hull

[svn_grass at osgeo.org]

Author: neteler
Date: 2018-02-22 11:14:51 -0800 (Thu, 22 Feb 2018)
New Revision: 72272

Modified:
   grass/trunk/vector/v.hull/v.hull.html
Log:
v.hull manual: add note on where parameter and layer option setting

Modified: grass/trunk/vector/v.hull/v.hull.html
===================================================================
--- grass/trunk/vector/v.hull/v.hull.html	2018-02-22 10:29:16 UTC (rev 72271)
+++ grass/trunk/vector/v.hull/v.hull.html	2018-02-22 19:14:51 UTC (rev 72272)
@@ -15,6 +15,13 @@
 Fig: Convex hull polygon created with <em>v.hull</em>
 </center>
 
+<h2>NOTES</h2>
+
+In order to use the <b>where</b> option the <b>layer</b> option must
+be set to a positive number (the default is '-1' for 'all layers'), otherwise
+all points from all layers will be used and the <b>cats</b> and <b>where</b>
+options will be ignored.
+
 <h2>EXAMPLE</h2>
 
 Example of <em>v.hull</em> 3D output (using two random 3D point