[GRASS-SVN] r69438 - grass/branches/releasebranch_7_0/display/d.rast.arrow

svn_grass at osgeo.org svn_grass at osgeo.org
Sun Sep 11 12:39:11 PDT 2016


Author: neteler
Date: 2016-09-11 12:39:11 -0700 (Sun, 11 Sep 2016)
New Revision: 69438

Modified:
   grass/branches/releasebranch_7_0/display/d.rast.arrow/d.rast.arrow.html
Log:
d.rast.arrow manual: minor style edits; example lacking

Modified: grass/branches/releasebranch_7_0/display/d.rast.arrow/d.rast.arrow.html
===================================================================
--- grass/branches/releasebranch_7_0/display/d.rast.arrow/d.rast.arrow.html	2016-09-11 19:36:44 UTC (rev 69437)
+++ grass/branches/releasebranch_7_0/display/d.rast.arrow/d.rast.arrow.html	2016-09-11 19:39:11 UTC (rev 69438)
@@ -19,20 +19,20 @@
 You can disable drawing of null data and unknown aspect values by
 setting its color to "<tt>none</tt>".
 
-<p>If you specify the <em>magnitude_map</em> option, arrow lengths 
-denoting magnitude will be extracted from the cell values of the specified 
+<p>When specifying the <em>magnitude_map</em> option, arrow lengths
+denoting magnitude will be extracted from the cell values of the specified
 map. In this case the tail of the arrow will be centered on the source cell.
 You may adjust the overall scale using the <em>scale</em> option.
 <em>d.rast.arrow</em> will ignore NULL and negative magnitudes, and will
 warn you if the debug level is set at 5 or higher. Be aware. If your application
-uses negative values for magnitude, you can use <em>r.mapcalc</em> to prepare
-the magnitude map to suit your needs (absolute value, inverted direction and 
-so on). 
+uses negative values for magnitude, you can use
+<em><a href="r.mapcalc.html">r.mapcalc</a></em> to prepare the magnitude map to
+suit your needs (absolute value, inverted direction and so on).
 
 <p><h2>NOTES</h2>
-By default, arrows are drawn at the size of a cell and cannot be seen if 
-the raster map is relatively close in scale. You can use the <em>skip</em> 
-option to draw arrows every n-th cell in both directions if you are working 
+By default, arrows are drawn at the size of a cell and cannot be seen if
+the raster map is relatively close in scale. You can use the <em>skip</em>
+option to draw arrows every n-th cell in both directions if you are working
 with relatively high resolutions. It may be useful to disable the grid in
 this case, which is accomplished by setting its color to "<tt>none</tt>".
 <p>For GRASS and Compass type aspect maps, the cell values of the aspect map
@@ -40,7 +40,7 @@
 aspect maps will be plotted in multiples of 15 degrees, and AGNPS type
 aspect maps will be displayed in D8 representation, i.e. the eight multiples 
 of 45 degrees.
-<p>GRASS aspect maps are measured using Cartesian conventions, i.e. in degrees 
+<p>GRASS aspect maps are measured using Cartesian conventions, i.e. in degrees
 counterclockwise from east. e.g.:
 
 <div class="code"><pre>
@@ -50,17 +50,20 @@
 0,360 East
 </pre></div>
 
-They can be created from a raster elevation map with <em>r.slope.aspect</em>.
+They can be created from a raster elevation map with
+<em><a href="r.slope.aspect.html">r.slope.aspect</a></em>.
 <p>Compass type aspect maps are measured in degrees clockwise from north.
-<p>This module uses oceanographic conventions, i.e. arrows point downslope or 
+<p>This module uses oceanographic conventions, i.e. arrows point downslope or
 direction "to", as opposed to atmospheric conventions (direction "from").
 
 
 <h2>EXAMPLE</h2>
 
-Convert U,V velocity component maps into magnitide,direction maps for use 
+<!-- TODO: add NC example: where to get U and V maps from? -->
+
+Convert U,V velocity component maps into magnitude,direction maps for use
 with <em>d.rast.arrow</em>:
-  
+
 <div class="code"><pre>
 r.mapcalc "magnitude = sqrt(U_map^2 + V_map^2)"
 r.mapcalc "direction = atan(U_map, V_map)"
@@ -69,14 +72,17 @@
 
 <h2>SEE ALSO</h2>
 
-<em><a href="d.frame.html">d.frame</a></em><br>
-<em><a href="d.rast.html">d.rast</a></em><br>
-<em><a href="d.rast.edit.html">d.rast.edit</a></em><br>
-<em><a href="d.rast.num.html">d.rast.num</a></em><br>
-<em><a href="g.region.html">g.region</a></em><br>
-<em><a href="r.slope.aspect.html">r.slope.aspect</a></em><br>
-<br>
+<em>
+<a href="d.frame.html">d.frame</a>,
+<a href="d.rast.html">d.rast</a>,
+<a href="d.rast.edit.html">d.rast.edit</a>,
+<a href="d.rast.num.html">d.rast.num</a>,
+<a href="g.region.html">g.region</a>,
+<a href="r.slope.aspect.html">r.slope.aspect</a>,
+<a href="r.watershed.html">r.watershed</a>
+</em>
 
+
 <h2>AUTHORS</h2>
 
 <u>Original author</u><br>



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