[GRASS-SVN] r54795 - grass-addons/grass7/raster/r.forestfrag
svn_grass at osgeo.org
svn_grass at osgeo.org
Sun Jan 27 13:03:24 PST 2013
Author: neteler
Date: 2013-01-27 13:03:24 -0800 (Sun, 27 Jan 2013)
New Revision: 54795
Added:
grass-addons/grass7/raster/r.forestfrag/r.forestfrag.html
Removed:
grass-addons/grass7/raster/r.forestfrag/description.html
Log:
in G7 the HTML page is named after the module
Deleted: grass-addons/grass7/raster/r.forestfrag/description.html
===================================================================
--- grass-addons/grass7/raster/r.forestfrag/description.html 2013-01-27 21:02:23 UTC (rev 54794)
+++ grass-addons/grass7/raster/r.forestfrag/description.html 2013-01-27 21:03:24 UTC (rev 54795)
@@ -1,56 +0,0 @@
-<h2>DESCRIPTION</h2>
-
-<em>r.forestfrag</em> Computes the forest fragmentation following the methodology
-proposed by Riitters et. al (2000). See http://www.consecol.org/vol4/iss2/art3/ for
-a detailed explanation.
-
-<p>It follows a “sliding window” algorithm with overlapping windows.
-The amount of forest and its occurence as adjacent forest pixels within fixed-
-area "moving-windows" surrounding each forest pixel is measured. The
-window size is user-defined. The result is stored at the location of the center pixel.
-Thus, a pixel value in the derived map refers to "between-pixel" fragmentation
-around the corresponding forest location.
-
-<p> Let Pf be the proportion of pixels in the window that are forested. Define
-Pff (strictly) as the proportion of all adjacent (cardinal directions only)
-pixel pairs that include at least one forest pixel, for which both pixels are
-forested. Pff (roughly) estimates the conditional probability that, given a
-pixel of forest, its neighbor is also forest. [...] the classification
-model [...] identifies six fragmentation categories:
-
-<p>(1) interior, for which Pf = 1.0<br />
-(2) patch, Pf < 0.4<br />
-(3) transitional, 0.4 < Pf < 0.6<br />
-(4) edge, Pf > 0.6 and Pf - Pff < 0<br />
-(5) perforated, Pf > 0.6 and Pf – Pff > 0<br />
-(6) undetermined, Pf > 0.6 and Pf = Pff <br />
-
-<h2>NOTES</h2>
-<p>The moving window size is user-defined (default=3), but must be given as a odd number.
-if the user gives an even number, the number is silently reduced to the nearest
-odd number < user-defined number.
-<p>To avoid edge effects at the border of the raster layer the user can choose to
-have the output raster trimmed with a number of raster cells equal to 1/2 * the
-size of the moving window.
-<p>If the user selects to run r.report on the output map, but has selected to leave
-the output untrimmed, r.report will be run on a copy of the output map that is trimmed.
-
-<h2>SEE ALSO</h2>
-This addon is based on the r.forestfrag.sh
-<http://grasswiki.osgeo.org/wiki/AddOns/GRASS_6#r.forestfrag> addon, adapted to make
-it compatible with GRASS 7.0. It introduces the option to change the moving window
-size and unlike the original addon, it respects the region (there is still the option
-to set the region to the input raster). This addon will not work on GRASS 6.4, please
-use the above mentioned addon.
-
-<h2>AUTHORS</h2>
-Emmanuel Sambale: Author original script<br />
-Stefan Sylla: Revised / updated <br />
-Paulo van Breugel: Revised / updated for GRASS 7.0, added the option to determine moving window size.<br />
-Contact: paulo at ecodiv.org
-
-<h2>REFERENCES</h2>
-Riitters, K., J. Wickham, R. O'Neill, B. Jones, and E. Smith. 2000. Global-scale patterns of forest fragmentation. Conservation Ecology 4(2): 3. [online] URL: http://www.consecol.org/vol4/iss2/art3/
-
-<p>
-<i>Last changed: $Date: 2013-01-21 13:31:45 +0100 (Mon, 21 Jan 2013) $</i>
Copied: grass-addons/grass7/raster/r.forestfrag/r.forestfrag.html (from rev 54789, grass-addons/grass7/raster/r.forestfrag/description.html)
===================================================================
--- grass-addons/grass7/raster/r.forestfrag/r.forestfrag.html (rev 0)
+++ grass-addons/grass7/raster/r.forestfrag/r.forestfrag.html 2013-01-27 21:03:24 UTC (rev 54795)
@@ -0,0 +1,56 @@
+<h2>DESCRIPTION</h2>
+
+<em>r.forestfrag</em> Computes the forest fragmentation following the methodology
+proposed by Riitters et. al (2000). See http://www.consecol.org/vol4/iss2/art3/ for
+a detailed explanation.
+
+<p>It follows a “sliding window” algorithm with overlapping windows.
+The amount of forest and its occurence as adjacent forest pixels within fixed-
+area "moving-windows" surrounding each forest pixel is measured. The
+window size is user-defined. The result is stored at the location of the center pixel.
+Thus, a pixel value in the derived map refers to "between-pixel" fragmentation
+around the corresponding forest location.
+
+<p> Let Pf be the proportion of pixels in the window that are forested. Define
+Pff (strictly) as the proportion of all adjacent (cardinal directions only)
+pixel pairs that include at least one forest pixel, for which both pixels are
+forested. Pff (roughly) estimates the conditional probability that, given a
+pixel of forest, its neighbor is also forest. [...] the classification
+model [...] identifies six fragmentation categories:
+
+<p>(1) interior, for which Pf = 1.0<br />
+(2) patch, Pf < 0.4<br />
+(3) transitional, 0.4 < Pf < 0.6<br />
+(4) edge, Pf > 0.6 and Pf - Pff < 0<br />
+(5) perforated, Pf > 0.6 and Pf – Pff > 0<br />
+(6) undetermined, Pf > 0.6 and Pf = Pff <br />
+
+<h2>NOTES</h2>
+<p>The moving window size is user-defined (default=3), but must be given as a odd number.
+if the user gives an even number, the number is silently reduced to the nearest
+odd number < user-defined number.
+<p>To avoid edge effects at the border of the raster layer the user can choose to
+have the output raster trimmed with a number of raster cells equal to 1/2 * the
+size of the moving window.
+<p>If the user selects to run r.report on the output map, but has selected to leave
+the output untrimmed, r.report will be run on a copy of the output map that is trimmed.
+
+<h2>SEE ALSO</h2>
+This addon is based on the r.forestfrag.sh
+<http://grasswiki.osgeo.org/wiki/AddOns/GRASS_6#r.forestfrag> addon, adapted to make
+it compatible with GRASS 7.0. It introduces the option to change the moving window
+size and unlike the original addon, it respects the region (there is still the option
+to set the region to the input raster). This addon will not work on GRASS 6.4, please
+use the above mentioned addon.
+
+<h2>AUTHORS</h2>
+Emmanuel Sambale: Author original script<br />
+Stefan Sylla: Revised / updated <br />
+Paulo van Breugel: Revised / updated for GRASS 7.0, added the option to determine moving window size.<br />
+Contact: paulo at ecodiv.org
+
+<h2>REFERENCES</h2>
+Riitters, K., J. Wickham, R. O'Neill, B. Jones, and E. Smith. 2000. Global-scale patterns of forest fragmentation. Conservation Ecology 4(2): 3. [online] URL: http://www.consecol.org/vol4/iss2/art3/
+
+<p>
+<i>Last changed: $Date: 2013-01-21 13:31:45 +0100 (Mon, 21 Jan 2013) $</i>
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