<div dir="ltr"><div class="gmail_extra"><br><div class="gmail_quote">On Sun, Sep 6, 2015 at 1:01 PM, Michael Barton <span dir="ltr"><<a href="mailto:Michael.Barton@asu.edu" target="_blank">Michael.Barton@asu.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Thanks for all the responses and fixes. I should have some time in the next week to look at these.<br></blockquote><div><br>Please see also my comments in "r.in.lidar: height aboveground" where I say:<br><br>r.resamp.rst should honor the resolution of the data since we are<br>resampling from that resolution or at least it should have a flag for it.<br>Similarly to r.in.lidar, we often want to resample to match some existing<br>raster which we can only do using region.<br><br></div><div>Does somebody think my idea is worth creating a patch? Did somebody looked to the source code already?<br></div><div><br></div><div>Best,<br></div><div>Vaclav<br></div><div><br><a href="https://lists.osgeo.org/pipermail/grass-dev/2015-September/076188.html">https://lists.osgeo.org/pipermail/grass-dev/2015-September/076188.html</a><br></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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Michael<br>
____________________<br>
C. Michael Barton<br>
Director, Center for Social Dynamics & Complexity<br>
Professor of Anthropology, School of Human Evolution & Social Change<br>
Head, Graduate Faculty in Complex Adaptive Systems Science<br>
Arizona State University<br>
<br>
voice: <a href="tel:480-965-6262" value="+14809656262">480-965-6262</a> (SHESC), <a href="tel:480-965-8130" value="+14809658130">480-965-8130</a>/727-9746 (CSDC)<br>
fax: <a href="tel:480-965-7671" value="+14809657671">480-965-7671</a> (SHESC), <a href="tel:480-727-0709" value="+14807270709">480-727-0709</a> (CSDC)<br>
www: <a href="http://www.public.asu.edu/~cmbarton" rel="noreferrer" target="_blank">http://www.public.asu.edu/~cmbarton</a>, <a href="http://csdc.asu.edu" rel="noreferrer" target="_blank">http://csdc.asu.edu</a><br>
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</span><div class=""><div class="h5">> On Sep 6, 2015, at 6:26 AM, Markus Neteler <<a href="mailto:neteler@osgeo.org">neteler@osgeo.org</a>> wrote:<br>
><br>
> On Mon, Aug 31, 2015 at 1:55 AM, Michael Barton <<a href="mailto:Michael.Barton@asu.edu">Michael.Barton@asu.edu</a>> wrote:<br>
>> Thanks for the clarification Stefan.<br>
>><br>
>> It sounds like, unlike other resampling commands (unless they, too, are in<br>
>> error), r.resample.rst needs to be run at the resolution of the original<br>
>> map, not the output map.<br>
><br>
> Yes. It has been implemented like that (not sure if there is any<br>
> technical reason), yet going a bit against the "normal" workflow.<br>
><br>
>> The output resolution will be determined by the<br>
>> command, not by the region settings. This should go into the manual too,<br>
>> along with the revised text you suggested.<br>
><br>
> Stefan, Michael, please send a text snipped to me for the manual.<br>
><br>
>> In a somewhat related question, do you have any idea how r.resample.filter<br>
>> works? The manual is not very informative<br>
><br>
> True - thanks to my long term inbox I found material here<br>
> <a href="https://trac.osgeo.org/grass/ticket/1401#comment:8" rel="noreferrer" target="_blank">https://trac.osgeo.org/grass/ticket/1401#comment:8</a><br>
><br>
> and merged it into the manual page:<br>
> <a href="https://grass.osgeo.org/grass70/manuals/r.resamp.filter.html" rel="noreferrer" target="_blank">https://grass.osgeo.org/grass70/manuals/r.resamp.filter.html</a><br>
> <a href="https://grass.osgeo.org/grass71/manuals/r.resamp.filter.html" rel="noreferrer" target="_blank">https://grass.osgeo.org/grass71/manuals/r.resamp.filter.html</a><br>
><br>
> (please revise as needed).<br>
><br>
>> and I couldn’t get any useful<br>
>> downscaling results (lower to higher resolution) with my spot tests.<br>
><br>
> Adding some examples there would be important.<br>
><br>
>> r.resample.interp doesn’t seem to give expected results either. I’ll do a<br>
>> test with demo data when I have a few minutes this week. I did get very good<br>
>> downscaling results with r.resample.bspline, but it took a very long time.<br>
><br>
> Perhaps time to expand<br>
> <a href="https://grasswiki.osgeo.org/wiki/Interpolation#Resampling_of_raster_maps_to_finer_resolution" rel="noreferrer" target="_blank">https://grasswiki.osgeo.org/wiki/Interpolation#Resampling_of_raster_maps_to_finer_resolution</a><br>
> ?<br>
><br>
> Markus<br>
<br>
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