[GRASS-user] GRASS GIS in Archaeology: how to get a cross section

[Lluís Vicens]

On 12/11/18 21:28, Max Haibt wrote:
> Hi Lluis,
Hi Max,
> a real 3d GIS for Archaeology is not available at the Moment. You may try
> to create some 3d Volumes in Grassgis but your students will hate it !
It doesn't sound too much attractive... :)
> I have also been Looking for a solution to this (I am archaeologist
> myself). But for now I stay with CloudCompare in 3d!!! Sadly CloudCompare
> has no Attributetable connected to Features and Stylingoptions as you may
> have enjoyed in Qgis. So unfold some section from your 3d meshes in CC and
> Import them to qgis (working in a fake section where the y-axis becomes
> the altitude…)
>   where you can do classification Styling labeling etc.
I will take a look to Cloudcompare 3d (I've never ever heard nothing 
about it because I'm not so familiar with 3d software and engines), and 
then I will do the trick into QGIS.
> I have been working like this for 5 years now in the German Archaeological
> Institute, ist a pain in the ass sometimes, but the results are proper
> phaseplans plan and section corresponding to each other. I hope we will
> have a real powerful 3d GIS one-day...
Thanks for your ideas and for sharing you experience.
Kind regards,
Lluís
>
>
> All the Best
>
> Max
>
>
>
>> 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)
>> lluis.vicens at udg.edu
>>
>> Lloc web:http://www.sigte.udg.edu
>> Twitter:http://twitter.com/SIGTE_UdG
>>
>> _______________________________________________
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>
-- 
Lluís Vicens
Servei de Sistemes d'Informació Geogràfica
--
Universitat de Girona
--
Pl. Ferrater Mora 1
17071   Girona
Tel +34 972 418 039 (7025 intern)
lluis.vicens at udg.edu

Lloc web: http://www.sigte.udg.edu
Twitter: http://twitter.com/SIGTE_UdG