[Qgis-user] Drill hole section with QGIS 3

[Stefan Giese (WhereGroup)]

The gis representation of a drill hole is normaly a point with some 
stratigraphic or lithological information of the underground behind it 
(a 1:n relation, 1 drill = n strata). In qgis2 there was the midvatten 
plugin which does such drill hole sections (see attached image).

hope this makes the drill hole thing a bit more clear...;-)

best regards
stefan
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Stefan Giese
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Am 2018-03-15 13:31, schrieb C Hamilton:
> Pardon my ignorance on the matter, but what does a drill hole
> capability mean? Is it simply making a hole in a polygon or is it much
> more complex.
> 
> Thanks,
> 
> Calvin
> 
> On Wed, Mar 14, 2018 at 3:46 PM, John Harrop <jcharrop at gmail.com>
> wrote:
> 
>> It looks like no one has been answering this for you yet and I’m
>> just catching up on a few days emails after my computer was in the
>> shop.
>> 
>> There is active interest in developing a drill hole plugin for QGIS3
>> now that 3D is more fully supported.  I also work with drill holes
>> and have been running them in QGIS fairly easily in plan view where
>> I just calculate traces to a plan view (either in a spreadsheet or
>> using code) and apply theme patterns based on the attributes I kept
>> with the segments.  This has worked reasonable well with grade and
>> lithology which are two of the main things you want to see.
>> 
>> Cross sections have been harder, but those are still “maps” in
>> non-Earth coordinates.  Again I’ve tended to build those with
>> projections to a plane in either a spreadsheet or by code.  This is
>> not as easy to work with as plan view so I am very interested in
>> seeing the developing interest in getting a drill hole section
>> plugin for QGIS.  That will really finalize QGIS as the logical
>> choice for geological exploration work.
>> 
>> I’ve cc’ed the others I know using QGIS so I hope you can be
>> included in the list of interested users.
>> 
>> Regards,
>> 
>> John Harrop, PGeo, FGS
>> Senior Project Geologist
>> Coast Mountain Geological Ltd
>> 
>> PO Box 62
>> Suite 488 - 625 Howe St
>> Vancouver, BC   V6C 2T6
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