[GRASS-SVN] r32270 - grass-addons/vector/v.strahler
svn_grass at osgeo.org
svn_grass at osgeo.org
Thu Jul 24 13:29:33 EDT 2008
Author: annalisapg
Date: 2008-07-24 13:29:33 -0400 (Thu, 24 Jul 2008)
New Revision: 32270
Modified:
grass-addons/vector/v.strahler/r.broscoe.sh.html
grass-addons/vector/v.strahler/r.strahler.sh.html
Log:
new description files
Modified: grass-addons/vector/v.strahler/r.broscoe.sh.html
===================================================================
--- grass-addons/vector/v.strahler/r.broscoe.sh.html 2008-07-24 17:18:16 UTC (rev 32269)
+++ grass-addons/vector/v.strahler/r.broscoe.sh.html 2008-07-24 17:29:33 UTC (rev 32270)
@@ -62,12 +62,12 @@
2000 -0.4003206 0.6908575 -0.01901582 0.814699
</pre></div>
<br />
-<img src="wt_rbroscoe.jpg"> <img src="lr_rbroscoe.jpg"> <img src="at_rbroscoe.jpg"> <br />
+<img src="images/wt_rbroscoe.jpg"> <img src="images/lr_rbroscoe.jpg"> <img src="images/at_rbroscoe.jpg"> <br />
<br />
By the report and graphics, you can see that the Van der Werden test gives not-so-good results (<em>Pvalue_max</em>=0.85 for threshold=1000 cells) but, if you consider the linear regression output (<em>Pr</em>), you can see that for the same threshold value (1000 cells) <em>Pr</em> is 97%.<br />
So the threshold=1000 cells is chosen. Moreover the program returns a set of vector map called <em>"orderd_thresholdvalue"</em> from wich you can extract the right one orderd-network (in this case the right one is <em>"orderd_1000"</em>), you can rename and use it as well as you want.<br />
<br />
-<img src="menotre.jpg"><br />
+<img src="images/menotre.jpg"><br />
<br />
<h2>NOTES</h2>
The <em>lt</em> value requested in input is a parameter that prevents eventual errors in the DEM; it considers the presence of pits and represents the height difference <em>lesserthan</em> a drop is not considered as a drop but as a pit, and extracted from <em>Mean Stream Drop</em> analysis.<br />
Modified: grass-addons/vector/v.strahler/r.strahler.sh.html
===================================================================
--- grass-addons/vector/v.strahler/r.strahler.sh.html 2008-07-24 17:18:16 UTC (rev 32269)
+++ grass-addons/vector/v.strahler/r.strahler.sh.html 2008-07-24 17:29:33 UTC (rev 32270)
@@ -24,7 +24,7 @@
<h2>BUGS</h2>
The program has some stability problems for low area threshold; from sperimental analysis the program works well for thresholds greater than the ones in graphic (below) for given cells of the studied-area in the DEM.<br />
-<img src="thrVScell.jpg"> <br />
+<img src="images/thrVScell.jpg"> <br />
<h2>SEE ALSO</h2>
<em><a HREF="v.strahler.html">v.strahler</a></em><br>
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