[GRASS-SVN] r64990 - grass-addons/grass7/vector/v.isochrones
svn_grass at osgeo.org
svn_grass at osgeo.org
Sun Apr 5 16:19:56 PDT 2015
Author: mlennert
Date: 2015-04-05 16:19:56 -0700 (Sun, 05 Apr 2015)
New Revision: 64990
Modified:
grass-addons/grass7/vector/v.isochrones/v.isochrones.html
Log:
small corrections and comment
Modified: grass-addons/grass7/vector/v.isochrones/v.isochrones.html
===================================================================
--- grass-addons/grass7/vector/v.isochrones/v.isochrones.html 2015-04-05 21:43:26 UTC (rev 64989)
+++ grass-addons/grass7/vector/v.isochrones/v.isochrones.html 2015-04-05 23:19:56 UTC (rev 64990)
@@ -34,7 +34,8 @@
Current region settings are used to define the maximal extension and the resolution
at which the cost map is calculated. The <b>memory</b> option allows to decide how much
memory the <em><a href="r.cost.html">r.cost</a></em> module can use (see the r.cost man page
-for more details).
+for more details). One big advantage of the this second approach is that the road network
+does not have to be topologically clean in order to get meaningful results.
<h2>EXAMPLE</h2>
@@ -55,18 +56,18 @@
v.isochrones map=myroads cost_column=cost start_points=start isochrones=isochrones_vnetiso time_steps=15,30,60 \
max_distance=1000 method=v.net.iso
-
</pre></div>
+
<center>
<img src="v_isochrones_net.png" border="1"><br>
15, 30 and 60 minute isochrones from the start point
using method v.net.iso
</center>
+<div class="code"><pre>
v.isochrones map=myroads cost_column=speed start_points=start isochrones=isochrones_rcost time_steps=15,30,60 \
method=r.cost memory=1000
-
</pre></div>
<center>
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