<div dir="ltr"><div dir="ltr"><div dir="ltr"><div>Location: Toronto |</div><div> | Database: C:\Users\hello\Documents\grassdata |</div><div> | Title: |</div><div> | Map scale: 1:1 |</div><div> | Name of creator: hello |</div><div> | Organization: |</div><div> | Source date: Thu May 09 19:17:57 2019 |</div><div> | Timestamp (first layer): none |</div><div> |----------------------------------------------------------------------------|</div><div> | Map format: native |</div><div> |----------------------------------------------------------------------------|</div><div> | Type of map: vector (level: 2) |</div><div> | |</div><div> | Number of points: 316866 Number of centroids: 0 |</div><div> | Number of lines: 0 Number of boundaries: 0 |</div><div> | Number of areas: 0 Number of islands: 0 |</div><div> | Number of faces: 0 Number of kernels: 0 |</div><div> | Number of volumes: 0 Number of holes: 0 |</div><div> | |</div><div> | Map is 3D: Yes |</div><div> | Number of dblinks: 1 |</div><div> | |</div><div> | Projection: UTM (zone 17) |</div><div> | |</div><div> | N: 4891804 S: 4789063 |</div><div> | E: 701767 W: 578337 |</div><div> | B: -272.2963 T: 472.80127 |</div><div> | |</div><div> | Digitization threshold: 0 |</div><div> | Comment: |</div><div> | |</div><div> +----------------------------------------------------------------------------+</div><div>(Thu May 09 19:22:41 2019) Command finished (0 sec)</div><div><br></div><div><br></div><div>V.DB.SELECT</div><div><br></div><div><div>cat,int_1,int_2,dbl_1,dbl_2,dbl_3,str_1,dbl_4,dbl_5,dbl_6,str_2,dbl_7</div><div>1,11105041,17,580165.3,4873100,279.89767,SAND,277.7976701,279.59767,1.21,WWR,5e-006</div><div>2,11105041,17,580165.3,4873100,279.89767,SAND,275.5976698,277.7976701,1.21,WWR,5e-006</div><div>3,11105041,17,580165.3,4873100,279.89767,SAND,269.1976702,275.5976698,1.21,WWR,5e-006</div><div>4,11105041,17,580165.3,4873100,279.89767,SAND,277.7976701,278,1.21,WWR,5e-006</div><div>5,11105041,17,580165.3,4873100,279.89767,SAND,277.7976701,279,1.21,WWR,5e-006</div><div>6,11105041,17,580165.3,4873100,279.89767,SAND,275.5976698,276,1.21,WWR,5e-006</div><div>7,11105041,17,580165.3,4873100,279.89767,SAND,275.5976698,277,1.21,WWR,5e-006</div></div></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">Le jeu. 9 mai 2019 à 04:59, Francois Chartier <<a href="mailto:fra.chartier@gmail.com">fra.chartier@gmail.com</a>> a écrit :<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto">sure i will send that later. thks</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu., May 9, 2019, 04:00 Micha Silver, <<a href="mailto:tsvibar@gmail.com" target="_blank">tsvibar@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div style="direction:ltr" bgcolor="#FFFFFF">
<br>
<div class="gmail-m_-7949487239083078615m_8087355881221876012moz-cite-prefix">On 08/05/2019 16:10, Moritz Lennert
wrote:<br>
</div>
<blockquote type="cite">On
8/05/19 15:03, Francois Chartier wrote:
<br>
<blockquote type="cite">Hi Micha,
<br>
<br>
I have soil samples from boreholes where i have data points at
every meter interval and where soil type changes. i would like
to create a weighted average of soil property for lets say the
first 1 m below the DEM, so that i can evaluate potential for
infiltration across a watershed.
<br>
</blockquote>
<br>
You can use v.what.rast to read the DEM value into the attribute
table of your points. Then you can do whatever calculations you
need based on that.
<br>
<br>
Moritz
<br>
<br>
</blockquote>
<p><br>
</p>
<p>After Moritz's answer, It seems that your question is a data
aggregation problem. If we can see the actual structure of your
data (i.e. <tt><a href="http://v.info" rel="noreferrer" target="_blank">v.info</a> -c</tt> or <tt>v.db.select</tt> then more
specific responses might be possible. Best would be a small subset
of the actual data.</p>
<p><br>
</p>
<p><br>
</p>
<blockquote type="cite">
<blockquote type="cite">
<br>
On Wed., May 8, 2019, 08:17 Moritz Lennert,
<<a class="gmail-m_-7949487239083078615m_8087355881221876012moz-txt-link-abbreviated" href="mailto:mlennert@club.worldonline.be" rel="noreferrer" target="_blank">mlennert@club.worldonline.be</a>
<a class="gmail-m_-7949487239083078615m_8087355881221876012moz-txt-link-rfc2396E" href="mailto:mlennert@club.worldonline.be" rel="noreferrer" target="_blank"><mailto:mlennert@club.worldonline.be></a>> wrote:
<br>
<br>
On 8/05/19 14:00, Micha Silver wrote:
<br>
> You will most likely have to convert the points to
raster. But
<br>
before
<br>
> that, can you explain what you mean by "located for 10
m from
<br>
DEM", "10
<br>
> to 20".
<br>
<br>
Or, if you mean zones of equal height, you can transform
them to vector
<br>
polygons and use v.vect.stats on these polygons and the
points.
<br>
<br>
Moritz
<br>
<br>
>
<br>
>
<br>
> On 08/05/2019 13:31, Francois Chartier wrote:
<br>
>> Hi
<br>
>>
<br>
>> I would like to use mapcalc with types of input a
DEM (raster)
<br>
and xyz
<br>
>> property (vector). basically, I would like to do
a weighted
<br>
average
<br>
>> of data points located for 10 m from DEM, then 10
to 20 etc.
<br>
>>
<br>
>> _______________________________________________
<br>
>> grass-user mailing list
<br>
>> <a class="gmail-m_-7949487239083078615m_8087355881221876012moz-txt-link-abbreviated" href="mailto:grass-user@lists.osgeo.org" rel="noreferrer" target="_blank">grass-user@lists.osgeo.org</a>
<a class="gmail-m_-7949487239083078615m_8087355881221876012moz-txt-link-rfc2396E" href="mailto:grass-user@lists.osgeo.org" rel="noreferrer" target="_blank"><mailto:grass-user@lists.osgeo.org></a>
<br>
>>
<a class="gmail-m_-7949487239083078615m_8087355881221876012moz-txt-link-freetext" href="https://lists.osgeo.org/mailman/listinfo/grass-user" rel="noreferrer" target="_blank">https://lists.osgeo.org/mailman/listinfo/grass-user</a>
<br>
>
<br>
> --
<br>
> Micha Silver
<br>
> Ben Gurion Univ.
<br>
> Sde Boker, Remote Sensing Lab
<br>
> +972-523-665918
<br>
>
<br>
>
<br>
> _______________________________________________
<br>
> grass-user mailing list
<br>
> <a class="gmail-m_-7949487239083078615m_8087355881221876012moz-txt-link-abbreviated" href="mailto:grass-user@lists.osgeo.org" rel="noreferrer" target="_blank">grass-user@lists.osgeo.org</a>
<a class="gmail-m_-7949487239083078615m_8087355881221876012moz-txt-link-rfc2396E" href="mailto:grass-user@lists.osgeo.org" rel="noreferrer" target="_blank"><mailto:grass-user@lists.osgeo.org></a>
<br>
> <a class="gmail-m_-7949487239083078615m_8087355881221876012moz-txt-link-freetext" href="https://lists.osgeo.org/mailman/listinfo/grass-user" rel="noreferrer" target="_blank">https://lists.osgeo.org/mailman/listinfo/grass-user</a>
<br>
>
<br>
<br>
<br>
</blockquote>
<br>
<br>
_______________________________________________
<br>
grass-user mailing list
<br>
<a class="gmail-m_-7949487239083078615m_8087355881221876012moz-txt-link-abbreviated" href="mailto:grass-user@lists.osgeo.org" rel="noreferrer" target="_blank">grass-user@lists.osgeo.org</a>
<br>
<a class="gmail-m_-7949487239083078615m_8087355881221876012moz-txt-link-freetext" href="https://lists.osgeo.org/mailman/listinfo/grass-user" rel="noreferrer" target="_blank">https://lists.osgeo.org/mailman/listinfo/grass-user</a><br>
</blockquote>
<pre class="gmail-m_-7949487239083078615m_8087355881221876012moz-signature" cols="72">--
Micha Silver
Ben Gurion Univ.
Sde Boker, Remote Sensing Lab
cell: +972-523-665918</pre>
</div>
</blockquote></div>
</blockquote></div>