<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<p><font face="DejaVu Sans">Hi Peter,</font></p>
<p><font face="DejaVu Sans">Thanks for your reply. I will take a
look at your example as well as the source you pointed out.</font></p>
<p><font face="DejaVu Sans">Best regards,</font></p>
<p><font face="DejaVu Sans">Lluís</font><br>
</p>
<div class="moz-cite-prefix">On 12/11/18 11:30, "Peter Löwe" wrote:<br>
</div>
<blockquote type="cite"
cite="mid:trinity-ef0d900d-8298-4bbc-9cbe-0c084ccea166-1542018604387@3c-app-gmx-bs21">
<pre class="moz-quote-pre" wrap="">Lluís,
your cross-sections seem to be comparable to geologic strata: Modelling them as 3D-volumes works well in GRASS. (<a class="moz-txt-link-freetext" href="https://grass.osgeo.org/grass76/manuals/raster3dintro.html">https://grass.osgeo.org/grass76/manuals/raster3dintro.html</a>)
Examples from a geologic strata-stack on slides 41 and 42:
<a class="moz-txt-link-freetext" href="https://www.slideshare.net/loewe/fossgis-portland-20143dprintingmidresrelease?qid=1e0d4b36-f2f1-4c19-a46d-af240ad9298a&v=&b=&from_search=2">https://www.slideshare.net/loewe/fossgis-portland-20143dprintingmidresrelease?qid=1e0d4b36-f2f1-4c19-a46d-af240ad9298a&v=&b=&from_search=2</a>
The data was imported from a vector sources, then converted to raster layers (2.5d) which where then blended together into a r3 volume (slide 47 lists the modules which were used).
best,
Peter
<a class="moz-txt-link-rfc2396E" href="mailto:peter.loewe@gmx.de"><peter.loewe@gmx.de></a>
</pre>
<blockquote type="cite">
<pre class="moz-quote-pre" wrap=""> 4. GRASS GIS in Archaeology: how to get a cross section
(Lluís Vicens)
--
------------------------------
Message: 4
Date: Mon, 12 Nov 2018 10:40:09 +0100
From: Lluís Vicens <a class="moz-txt-link-rfc2396E" href="mailto:lluis.vicens@udg.edu"><lluis.vicens@udg.edu></a>
To: <a class="moz-txt-link-abbreviated" href="mailto:grass-user@lists.osgeo.org">grass-user@lists.osgeo.org</a>
Subject: [GRASS-user] GRASS GIS in Archaeology: how to get a cross
section
Message-ID: <a class="moz-txt-link-rfc2396E" href="mailto:623c6ad2-ca5a-bbba-7d49-2dcd49e6d7be@udg.edu"><623c6ad2-ca5a-bbba-7d49-2dcd49e6d7be@udg.edu></a>
Content-Type: text/plain; charset="utf-8"; Format="flowed"
Hi everyone,
Let me share some doubts and concerns regarding to a concrete
application of GRASS GIS to archaeology.
The point is that I would like to prepare some training exercises for a
group of archaeologists, and I'm dealing right now with the problem of
how to properly represent stratigraphic sections or cross sections over
an excavation site. I mean something like this:
stratigraphy
For the training exercises, I could own a collection or a series of
digital surface models (dsm), relative to every single step or
excavation phase on the excavation's site process. In a practical way,
that means that every time a stratum is removed, the archaeologists can
get a new digital surface model using a drone and a lidar sensor. Then
computing the difference between the previous dsm and the current one
(and so on, successively), they could obtain a collection of stratum or
layers to visualize it in a cross section diagram. I don't know if the
problem is enough well explained...
I've been reading and searching on the Internet for a while, about GRASS
GIS and stratigraphic/cross sections, but I've didn't find any hint
neither a clear clue about how to do it. So, the question is, is it
possible to get something similar to the previous or the following image
using GRASS GIS, as well as combined, with other tools or open source
software? Any answer, hint or clue will be really appreciated.
model
Thanks,
Lluís
--
Lluís Vicens
Servei de Sistemes d'Informació Geogràfica
--
Universitat de Girona
--
Pl. Ferrater Mora 1
17071 Girona
Tel +34 972 418 039 (7025 intern)
<a class="moz-txt-link-abbreviated" href="mailto:lluis.vicens@udg.edu">lluis.vicens@udg.edu</a>
Lloc web:<a class="moz-txt-link-freetext" href="http://www.sigte.udg.edu">http://www.sigte.udg.edu</a>
Twitter:<a class="moz-txt-link-freetext" href="http://twitter.com/SIGTE_UdG">http://twitter.com/SIGTE_UdG</a>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <a class="moz-txt-link-rfc2396E" href="http://lists.osgeo.org/pipermail/grass-user/attachments/20181112/c4234ea7/attachment.html"><http://lists.osgeo.org/pipermail/grass-user/attachments/20181112/c4234ea7/attachment.html></a>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: gall0302lrg.jpg
Type: image/jpeg
Size: 214771 bytes
Desc: not available
URL: <a class="moz-txt-link-rfc2396E" href="http://lists.osgeo.org/pipermail/grass-user/attachments/20181112/c4234ea7/attachment.jpg"><http://lists.osgeo.org/pipermail/grass-user/attachments/20181112/c4234ea7/attachment.jpg></a>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: original_model.jpg
Type: image/jpeg
Size: 66864 bytes
Desc: not available
URL: <a class="moz-txt-link-rfc2396E" href="http://lists.osgeo.org/pipermail/grass-user/attachments/20181112/c4234ea7/attachment-0001.jpg"><http://lists.osgeo.org/pipermail/grass-user/attachments/20181112/c4234ea7/attachment-0001.jpg></a>
------------------------------
Subject: Digest Footer
_______________________________________________
grass-user mailing list
<a class="moz-txt-link-abbreviated" href="mailto:grass-user@lists.osgeo.org">grass-user@lists.osgeo.org</a>
<a class="moz-txt-link-freetext" href="https://lists.osgeo.org/mailman/listinfo/grass-user">https://lists.osgeo.org/mailman/listinfo/grass-user</a>
------------------------------
End of grass-user Digest, Vol 151, Issue 30
*******************************************
</pre>
</blockquote>
</blockquote>
<pre class="moz-signature" cols="72">--
Lluís Vicens
Servei de Sistemes d'Informació Geogràfica
--
Universitat de Girona
--
Pl. Ferrater Mora 1
17071 Girona
Tel +34 972 418 039 (7025 intern)
<a class="moz-txt-link-abbreviated" href="mailto:lluis.vicens@udg.edu">lluis.vicens@udg.edu</a>
Lloc web: <a class="moz-txt-link-freetext" href="http://www.sigte.udg.edu">http://www.sigte.udg.edu</a>
Twitter: <a class="moz-txt-link-freetext" href="http://twitter.com/SIGTE_UdG">http://twitter.com/SIGTE_UdG</a></pre>
</body>
</html>