[GRASS-SVN] r72964 - grass/trunk/raster/r.patch

svn_grass at osgeo.org svn_grass at osgeo.org
Sun Jul 8 11:36:43 PDT 2018


Author: neteler
Date: 2018-07-08 11:36:42 -0700 (Sun, 08 Jul 2018)
New Revision: 72964

Modified:
   grass/trunk/raster/r.patch/r.patch.html
Log:
r.patch manual: functionality overview cosmetics

Modified: grass/trunk/raster/r.patch/r.patch.html
===================================================================
--- grass/trunk/raster/r.patch/r.patch.html	2018-07-07 22:28:27 UTC (rev 72963)
+++ grass/trunk/raster/r.patch/r.patch.html	2018-07-08 18:36:42 UTC (rev 72964)
@@ -3,20 +3,27 @@
 The GRASS program <em>r.patch</em> allows the user to build a new
 raster map the size and resolution of the current region by assigning
 known data values from input raster maps to the cells in this region.
-This is done by filling in "no data" cells, those that do not yet
-contain data, contain NULL data, or, optionally contain 0 data,
-with the data from the first input map.
+<br>
+In case of overlapping input raster maps this is done by filling in
+"no data" cells, those that do not yet contain data, contain NULL data,
+or, optionally contain 0 data, with the data from the first input map.
 Once this is done the remaining holes are filled in by the next input map,
 and so on.
+<br>
+In case of adjacent input raster maps the output map contains the map
+mosaic.
 
 <p>
-This program
-is useful for making a composite raster map layer from two or more adjacent
-map layers, for filling in "holes" in a raster map layer's data (e.g., in
-digital elevation data), or for updating an older map layer with more recent
-data. The current geographic region definition and mask settings are
-respected.
+Hence this command is useful for
+<ul>
+<li> making a composite raster map layer from two or more adjacent map layers,</li>
+<li> for filling in "holes" in a raster map layer's data (e.g., in digital
+     elevation data), or
+<li> for updating an older map layer with more recent data.</li>
+</ul>
 
+The current geographic region definition and mask settings are respected.
+
 <center>
 <img src="r_patch.png">
 <p><em>Figure: Result of patching two raster maps containing NULLs using
@@ -23,6 +30,7 @@
 the default settings</em></p>
 </center>
 
+<h3>Stacking order</h3>
 <p>The first <em>name</em> listed in the string
 <b>input=</b><em>name</em>,<em>name</em>,<em>name</em>, ... is the name of
 the first map whose data values will be used to fill in "no data" cells



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