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List: grass-commit
Subject: [GRASS-SVN] r69600 - grass/trunk/lib/vector/Vlib
From: svn_grass () osgeo ! org
Date: 2016-09-28 21:23:10
Message-ID: 20160928212310.9473A3903BE () trac ! osgeo ! org
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Author: mmetz
Date: 2016-09-28 14:23:10 -0700 (Wed, 28 Sep 2016)
New Revision: 69600
Modified:
grass/trunk/lib/vector/Vlib/merge_lines.c
Log:
Vlib: update documentation for Vect_merge_lines()
Modified: grass/trunk/lib/vector/Vlib/merge_lines.c
===================================================================
--- grass/trunk/lib/vector/Vlib/merge_lines.c 2016-09-28 13:48:13 UTC (rev 69599)
+++ grass/trunk/lib/vector/Vlib/merge_lines.c 2016-09-28 21:23:10 UTC (rev 69600)
@@ -63,8 +63,8 @@
Useful for generalization and smoothing.
Adjacent boundaries are merged as long as topology is maintained.
Adjacent lines are merged as long as there are exactly two different
- lines connected at a given node.
- Categories are added up when merging.
+ lines with identical categories connected at a given node.
+ Zero-length lines need to be removed first.
GV_BUILD_BASE as topo build level is sufficient, areas need not be built.
\param Map input vector map
@@ -122,7 +122,7 @@
* - loop back to start boundary via several other boundaries
* - one boundary forming closed loop
* - node with 3 entries but only 2 boundaries, one of them connecting twice,
- * the other one must then be topologically incorrect in case of boundary */
+ * the other one must then be topologically incorrect (a bridge) in case of boundary */
/* go backward as long as there is only one other line/boundary at the current node */
G_debug(3, "go backward");
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