[GRASS-SVN] r74365 - grass/branches/releasebranch_7_6/raster/r.watershed/front
svn_grass at osgeo.org
svn_grass at osgeo.org
Wed Apr 10 06:55:24 PDT 2019
Author: martinl
Date: 2019-04-10 06:55:24 -0700 (Wed, 10 Apr 2019)
New Revision: 74365
Added:
grass/branches/releasebranch_7_6/raster/r.watershed/front/r_watershed_drainage.png
Modified:
grass/branches/releasebranch_7_6/raster/r.watershed/front/r.watershed.html
Log:
r.watershed: add drainage fig (merge r74364 from trunk)
Modified: grass/branches/releasebranch_7_6/raster/r.watershed/front/r.watershed.html
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--- grass/branches/releasebranch_7_6/raster/r.watershed/front/r.watershed.html 2019-04-10 13:54:23 UTC (rev 74364)
+++ grass/branches/releasebranch_7_6/raster/r.watershed/front/r.watershed.html 2019-04-10 13:55:24 UTC (rev 74365)
@@ -144,6 +144,16 @@
<p>
Output <b>drainage</b> raster map contains drainage direction.
Provides the "aspect" for each cell measured CCW from East.
+
+<div align="center" style="margin: 10px">
+<a href="r_watershed_drainage.png">
+<img src="r_watershed_drainage.png" width="116" height="89" alt="drainage" border="0">
+</a><br>
+<i>Figure: Drainage is 8 directions numbered counter-clockwise
+starting from 1 in north-east direction
+(<a href="https://idea.isnew.info/how-to-import-arcgis-flow-direction-into-grass-gis.html">source</a>)</i>
+</div>
+
Multiplying positive values by 45 will give the direction in degrees
that the surface runoff will travel from that cell. The value 0
(zero) indicates that the cell is a depression area (defined by the
Copied: grass/branches/releasebranch_7_6/raster/r.watershed/front/r_watershed_drainage.png (from rev 74364, grass/trunk/raster/r.watershed/front/r_watershed_drainage.png)
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(Binary files differ)
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