[GRASS-SVN] r34240 - grass/trunk/scripts/v.dissolve
svn_grass at osgeo.org
svn_grass at osgeo.org
Tue Nov 11 02:39:16 EST 2008
Author: hamish
Date: 2008-11-11 02:39:15 -0500 (Tue, 11 Nov 2008)
New Revision: 34240
Modified:
grass/trunk/scripts/v.dissolve/v.dissolve.html
Log:
note about attr key col's new cats (merge from devbr6)
Modified: grass/trunk/scripts/v.dissolve/v.dissolve.html
===================================================================
--- grass/trunk/scripts/v.dissolve/v.dissolve.html 2008-11-11 07:37:00 UTC (rev 34239)
+++ grass/trunk/scripts/v.dissolve/v.dissolve.html 2008-11-11 07:39:15 UTC (rev 34240)
@@ -2,16 +2,20 @@
The <EM>v.dissolve</EM> module is used to merge adjacent areas in a vector
map which share the same category value. The resulting merged area(s) retains
-this category value. Optionally, a column can be defined which is used
-to find adjacent polygons with identical attribute for common boundary
-dissolving.
+this category value. Alternatively an integer or string column can be defined
+which is used to find adjacent polygons with identical attribute for common
+boundary dissolving. In this case the categories are not retained, only the
+values of the new key column. See the <em>v.extract</em> help page for details.
+
+<h2>NOTES</h2>
+
GRASS defines a vector area as composite entity consisting of a set of
closed boundaries and a centroid. The centroids must contain a
category number
(see <em><a href="v.centroids.html">v.centroids</a></em>), this number
is linked to area attributes and database links.
-
+<P>
Multiple attributes may be linked to a single vector entity through
numbered fields referred to as layers. Refer
to <em><a href="v.category.html">v.category</a></em> for more details.
@@ -23,6 +27,7 @@
front-end to that module. The use of the <EM>column</EM> parameter
adds a call to <em><a href="v.reclass.html">v.reclass</a></em> before.
+
<h2>EXAMPLES</h2>
<h3>Basic use</h3>
@@ -56,6 +61,7 @@
v.dissolve input=clc2000_clean output=clc2000_final col=CODE_00
</pre></div>
+
<H2>SEE ALSO</H2>
<EM>
@@ -65,6 +71,7 @@
<A HREF="v.reclass.html">v.reclass</A>
</EM>
+
<H2>AUTHORS</H2>
module: M. Hamish Bowman, Dept. Marine Science, Otago University, New Zealand<br>
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