<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">2016-08-03 15:17 GMT-06:00 Nikos Alexandris <span dir="ltr"><<a href="mailto:nik@nikosalexandris.net" target="_blank">nik@nikosalexandris.net</a>></span>:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex"><div class=""><div class="h5"><br>
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Eddison wrote:<br>
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>>> Hello thank you very much , you can put some screenshots of the<br>
>>> process?<br>
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Helmut Kudrnovsky:<br>
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>> have a look at <a href="https://grass.osgeo.org/grass70/manuals/g.region.html" rel="noreferrer" target="_blank">https://grass.osgeo.org/grass70/manuals/g.region.html</a><br>
>> -a     Align region to resolution raster=name[,name,...]<br>
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See also<br>
<a href="https://grasswiki.osgeo.org/wiki/Computational_region" rel="noreferrer" target="_blank">https://grasswiki.osgeo.org/wiki/Computational_region</a><br>
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>> Set region to match raster map(s)<br>
>> g.region -a raster=your_raster_you_want_align_to<br>
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Nikos Alexandris:<br>
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> Also useful (to read and use):<br>
> <a href="https://grass.osgeo.org/grass70/manuals/r.resample.html" rel="noreferrer" target="_blank">https://grass.osgeo.org/grass70/manuals/r.resample.html</a><br>
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Markus Neteler:<br>
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For an overview, see also<br>
<a href="https://grasswiki.osgeo.org/wiki/Interpolation" rel="noreferrer" target="_blank">https://grasswiki.osgeo.org/wiki/Interpolation</a><br>
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PS: I have now added the second link to all relevant manual pages<br>
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Eddison Araya:<br>
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Hello thank you very much , then the command is as follows:<br>
g.region -a -p raster=lsat5_1987_10 align=urban  ?<br>
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Eddison, the command is as Helmut proposed in one of his first posts<br>
(see below).<br>
<br>
Essentialy, you want to set the extent of the region (within which<br>
grass' raster modules will operate) to match a raster map's dimensions.<br>
<br>
That is,<br>
<br>
g.region raster=Your_Raster_Map<br>
<br>
And, even more, you want to force the alignment of the extent to this<br>
map.  This is done by addin the -a flag:<br>
<br>
g.region -a raster=Your_Raster_Map<br>
<br>
That's it, nothing more.<br>
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Eddison, seems I was to fast (and writing out of memory) and your above<br>
command is correct, I guess.  The -a will align the region's extent, to,<br>
well, as the manual explains, the resolution.<br>
<br>
So, you'd need your `align=` part.<span class=""><font color="#888888"><br>
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Nikos<br></font></span></blockquote><div><br></div><div><br></div><div><br></div><div><span style="color:rgb(33,33,33);font-size:16px;line-height:24px;white-space:pre-wrap">Hello, thank you very much to all of you for your answers, for their willingness to cooperate , very friendly.

regards

Eddison</span><br></div></div></div></div>