[GRASS-SVN] r30388 - in grass-addons/vector/v.strahler: . documentation

[svn_grass at osgeo.org]

Author: florian
Date: 2008-02-28 07:39:28 -0500 (Thu, 28 Feb 2008)
New Revision: 30388

Added:
   grass-addons/vector/v.strahler/documentation/
   grass-addons/vector/v.strahler/documentation/r.broscoe_flowchart.dia
   grass-addons/vector/v.strahler/documentation/r.broscoe_flowchart.jpeg
   grass-addons/vector/v.strahler/documentation/v.strahler_flowchart.dia
   grass-addons/vector/v.strahler/documentation/v.strahler_flowchart.jpeg
Modified:
   grass-addons/vector/v.strahler/description.html
Log:
Added documentation (flowcharts) on algorithms.


Modified: grass-addons/vector/v.strahler/description.html
===================================================================
--- grass-addons/vector/v.strahler/description.html	2008-02-28 12:35:40 UTC (rev 30387)
+++ grass-addons/vector/v.strahler/description.html	2008-02-28 12:39:28 UTC (rev 30388)
@@ -2,6 +2,10 @@
 
 <em>v.strahler</em> calculates the Strahler Order for all lines of a given dendritic network. The input vector map must be free of cycles. For the elaboration a new imported network or a network extracted from DEM by using <em><a HREF="r.watershed.html">r.watershed</a></em> can be used (in this case the topology has to be cleaned manually). More than one tree in the input data is allowed. No given flow direction is needed. To find the outlet of each tree, a DEM must be given.
 
+There are two additional scripts distributed with v.strahler:
+- <em>r.strahler.sh</em> extracts streams from a DEM and call v.strahler on the result. <br />
+- <em>r.broscoe</em> computes further statistical values for a given basin.
+
 <h2>NOTES</h2>
 <h3>Problems</h3>
 This program is in beta status. It has the following shortcomings: <br />
@@ -15,6 +19,8 @@
 Strahler ordering begins at each leaf of the tree with order N=1 (excluding the outlet). At a confluence, the order N(r) of the resulting stream is equal to the highest order N(max) of the joining streams or is raised by one if there are two or more joining streams of order N(max). <br />
 The algorithm returns an ASCII text file with columns: <em>Category</em> (from input map), <em>Line</em> (topology), <em>Basin</em>, <em>Order</em>; and the output map has the Strahler Order value instead of "category" for each line, and no connection with the database.
 
+See the also the diagrams in the documentation/ directory.
+
 <h2>EXAMPLE</h2>
 The input map (vector on DEM): <br />
 <br />

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