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<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Hi Michael,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">The second sentence you cite from the manual seems indeed a bit imprecise.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">It should probably say something like:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">“The extent of all resulting raster maps is taken from the settings of the current region (which may be different from
the extent of the input raster map). The resolution of the current region however has to follow cleanly the resolution of the input map”<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Yet, the example in the manual is correct. It might be modified in order to highlight the module behavior named above
by exchanging the first g.region command by something like:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">g.region n= s= e= w= align=elevation.dem -p<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">(I do not have the sample data available, so I cannot guess reasonable extent values or another raster or vector map with
a smaller extent)…<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Cheers<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US">Stefan<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span lang="EN-US" style="font-size:11.0pt;font-family:"Calibri",sans-serif"> grass-dev-bounces@lists.osgeo.org [mailto:grass-dev-bounces@lists.osgeo.org]
<b>On Behalf Of </b>Michael Barton<br>
<b>Sent:</b> 30. august 2015 04:03<br>
<b>To:</b> GRASS developers grass-developers <grass-dev@lists.osgeo.org><br>
<b>Subject:</b> [GRASS-dev] r.resample.rst behavior does not match manual<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The r.resample.rst manual states… <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">" Reinterpolation (resampling) is done to higher, same or lower resolution specified by the ew_res and ns_res parameters.”<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">The very next sentence states...<o:p></o:p></p>
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<p class="MsoNormal"> <br>
"All resulting raster maps are created using the settings of the current region (which may be different from that of the input raster map).”<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">So these two sentences contradict each other. <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Additionally, I’ve got a 90m DEM that I want to resample to 30m. I’ve reset the region resolution to 30m. This is exactly the situation listed in the second sentence. Yet r.resample.rst gives the error:<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">"ERROR: Input map resolution differs from current region resolution!"<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">So what is the proper way to use this module? Whatever it is, the manual needs to be corrected.
<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Michael <o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif;color:black">____________________<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica",sans-serif">C. Michael Barton</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica",sans-serif">Director, Center for Social Dynamics & Complexity </span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica",sans-serif">Professor of Anthropology, School of Human Evolution & Social Change</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica",sans-serif">Head, Graduate Faculty in Complex Adaptive Systems Science</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica",sans-serif">Arizona State University</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Helvetica",sans-serif;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica",sans-serif">voice: 480-965-6262 (SHESC), 480-965-8130/727-9746 (CSDC)<br>
fax: 480-965-7671 (SHESC), 480-727-0709 (CSDC)</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-family:"Helvetica",sans-serif">www: <a href="http://www.public.asu.edu/~cmbarton">
http://www.public.asu.edu/~cmbarton</a>, <a href="http://csdc.asu.edu">http://csdc.asu.edu</a></span><o:p></o:p></p>
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