Hello folks, im in need to make a 3d model for my research. Basically i have some borehole data with coordinates and its depths. I don’t know how to insert / transform the depth data into a 3d image, all the examples that i saw of nviz plugin just show the elevation model but none have some depth. In addition i will have to use the depth points to create another surface.
Can anyone give me some tips on how can i create the 3d model of my boreholes?
Thanks,
Alec Ventura.
Hi,
···
On Mon, Oct 12, 2015 at 6:40 PM, Alec Ventura <alecventura@hotmail.com> wrote:
Hello folks, im in need to make a 3d model for my research. Basically i have some borehole data with coordinates and its depths. I don’t know how to insert / transform the depth data into a 3d image, all the examples that i saw of nviz plugin just show the elevation model but none have some depth. In addition i will have to use the depth points to create another surface.
Can anyone give me some tips on how can i create the 3d model of my boreholes?
perhaps if you could be more specific what you mean by 3D model? You can interpolate a 3D raster from your points using v.vol.rst and display it in nviz using isosurfaces or slices, see https://www.youtube.com/watch?t=59&v=CmK-fEyf2SY.
Anna
Thanks,
Alec Ventura.
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Hello, look at automate v.extrude from a table ?
<http://osgeo-org.1560.x6.nabble.com/automate-v-extrude-from-a-table-td4978722.html#a4978730>
, Automatic 3D geological boreholes representation (automate v.extrude
from a table ?): my solution in Python
<http://osgeo-org.1560.x6.nabble.com/Automatic-3D-geological-boreholes-representation-automate-v-extrude-from-a-table-my-solution-in-Pythn-td4978801.html>
, and some results in 3D geological volume modeling (raster 3D): is it
really possible ?
<http://osgeo-org.1560.x6.nabble.com/3D-geological-volume-modeling-raster-3D-is-it-really-possible-td4980148.html>
and GitHub: GRASS-GIS-3D-geology
<https://github.com/mlaloux/GRASS-GIS-3D-geology>
--
View this message in context: http://osgeo-org.1560.x6.nabble.com/3d-model-with-boreholes-tp5229576p5229591.html
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Tanks very much for your answer Gene, im trying to follow your steps, but im having some issues:
I was abble to generate the boreholes, but when i add some vectors (boreholes) and turn on 3d, nothing appears.
I had attached my algorithm and my ‘pocos’ shape file with my attribute table, if some kind soul could take a look and point me some directions, i will appreciate
Tanks very much,
Alec.
Date: Mon, 12 Oct 2015 22:11:24 -0700
From: martin.laloux@gmail.com
To: grass-user@lists.osgeo.org
Subject: Re: [GRASS-user] 3d model with boreholesHello, look at automate v.extrude from a table ?
http://osgeo-org.1560.x6.nabble.com/automate-v-extrude-from-a-table-td4978722.html#a4978730
, Automatic 3D geological boreholes representation (automate v.extrude
from a table ?): my solution in Python
http://osgeo-org.1560.x6.nabble.com/Automatic-3D-geological-boreholes-representation-automate-v-extrude-from-a-table-my-solution-in-Pythn-td4978801.html
, and some results in 3D geological volume modeling (raster 3D): is it
really possible ?
http://osgeo-org.1560.x6.nabble.com/3D-geological-volume-modeling-raster-3D-is-it-really-possible-td4980148.html
and GitHub: GRASS-GIS-3D-geology
https://github.com/mlaloux/GRASS-GIS-3D-geology–
View this message in context: http://osgeo-org.1560.x6.nabble.com/3d-model-with-boreholes-tp5229576p5229591.html
Sent from the Grass - Users mailing list archive at Nabble.com.
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I had triyed to run the extrude command over all my boreholes(with buffer), just to do a simple test:
v.extrude input=PocosGrassBuffer@Map2 output=areaTest height=50 type=area
and when i turn on 3d, it gives the error:
No features from vector map areaTest@Map2 fall within current region
The EPSG code im using is 4674 - SIRGAS2000, on Qgis it looks ok, but on grass i notice that the scale is quite odd, i don’t know if this can cause any bug.
From: alecventura@hotmail.com
To: martin.laloux@gmail.com; grass-user@lists.osgeo.org
Date: Thu, 10 Dec 2015 20:19:29 -0200
Subject: Re: [GRASS-user] 3d model with boreholes
Tanks very much for your answer Gene, im trying to follow your steps, but im having some issues:
I was abble to generate the boreholes, but when i add some vectors (boreholes) and turn on 3d, nothing appears.
I had attached my algorithm and my ‘pocos’ shape file with my attribute table, if some kind soul could take a look and point me some directions, i will appreciate
Tanks very much,
Alec.
Date: Mon, 12 Oct 2015 22:11:24 -0700
From: martin.laloux@gmail.com
To: grass-user@lists.osgeo.org
Subject: Re: [GRASS-user] 3d model with boreholesHello, look at automate v.extrude from a table ?
http://osgeo-org.1560.x6.nabble.com/automate-v-extrude-from-a-table-td4978722.html#a4978730
, Automatic 3D geological boreholes representation (automate v.extrude
from a table ?): my solution in Python
http://osgeo-org.1560.x6.nabble.com/Automatic-3D-geological-boreholes-representation-automate-v-extrude-from-a-table-my-solution-in-Pythn-td4978801.html
, and some results in 3D geological volume modeling (raster 3D): is it
really possible ?
http://osgeo-org.1560.x6.nabble.com/3D-geological-volume-modeling-raster-3D-is-it-really-possible-td4980148.html
and GitHub: GRASS-GIS-3D-geology
https://github.com/mlaloux/GRASS-GIS-3D-geology–
View this message in context: http://osgeo-org.1560.x6.nabble.com/3d-model-with-boreholes-tp5229576p5229591.html
Sent from the Grass - Users mailing list archive at Nabble.com.
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Il 10/12/2015 23:54, Alec Ventura ha scritto:
and when i turn on 3d, it gives the error:
No features from vector map areaTest@Map2 fall within current region
No features fall within current region so you must set the region
to cover your layer, use:
g.region
test, sorry only a test
test, sorry only a test.
On Thu, Dec 10, 2015 at 11:54 PM, Alec Ventura <alecventura@hotmail.com> wrote:
...
The EPSG code im using is 4674 - SIRGAS2000, on Qgis it looks ok, but on
grass i notice that the scale is quite odd, i don't know if this can cause
any bug.
I tried that:
grass70 -c epsg:4674 ~/grassdata/SIRGAS2000
and see
GRASS 7.0.2svn (SIRGAS2000):~ > g.proj -w
GEOGCS["grs80",
DATUM["unknown",
SPHEROID["Geodetic_Reference_System_1980",6378137,298.257222101],
TOWGS84[0,0,0,0,0,0,0]],
PRIMEM["Greenwich",0],
UNIT["degree",0.0174532925199433]]
which indicates that it is not correctly detected.
There is a related ticket open:
https://trac.osgeo.org/grass/ticket/2456
which we need to solve asap.
Markus
So… i have converted my shape file to this projection: http://spatialreference.org/ref/epsg/4618/ on Qgis, and have created a new projection and mapset with this same epsg on Grass…
But when i import the shape on grass the map scale is still crazy, it says 1:6, but my area is huge and i can see all my points, it should be at least 1:500000 or more.
And this is a problem because when i try to make the buffers over my points i have to use a very small distance:
g.run_command(‘v.buffer’, input=‘PocosSad@Map3’, output=‘boreholesGrassBuffer’, type=‘point’, distance=‘0.01’)
else my buffer covers the hole area.
Anyone knows how i can fix this map scale? or why is this strange?
my shape file is in attach,
Very tnks
From: neteler@osgeo.org
Date: Fri, 11 Dec 2015 11:45:47 +0100
Subject: Re: [GRASS-user] 3d model with boreholes
To: alecventura@hotmail.com
CC: martin.laloux@gmail.com; grass-user@lists.osgeo.orgOn Thu, Dec 10, 2015 at 11:54 PM, Alec Ventura alecventura@hotmail.com wrote:
…The EPSG code im using is 4674 - SIRGAS2000, on Qgis it looks ok, but on
grass i notice that the scale is quite odd, i don’t know if this can cause
any bug.I tried that:
grass70 -c epsg:4674 ~/grassdata/SIRGAS2000
and see
GRASS 7.0.2svn (SIRGAS2000):~ > g.proj -w
GEOGCS[“grs80”,
DATUM[“unknown”,
SPHEROID[“Geodetic_Reference_System_1980”,6378137,298.257222101],
TOWGS84[0,0,0,0,0,0,0]],
PRIMEM[“Greenwich”,0],
UNIT[“degree”,0.0174532925199433]]which indicates that it is not correctly detected.
There is a related ticket open:
https://trac.osgeo.org/grass/ticket/2456which we need to solve asap.
Markus
(attachments)
PocosSad.cpg (4 Bytes)
PocosSad.dbf (42.5 KB)
PocosSad.prj (150 Bytes)
PocosSad.qpj (304 Bytes)
PocosSad.shp (2.37 KB)
PocosSad.shx (764 Bytes)