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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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 <jchar...@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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