[GRASS-user] Fwd: v.vol.rst - DMIN and Segment Size

[Francois Chartier]

Hourrah Finally.  I am was able to make v.vol.rst work.
How it worked.
I made the resolution to be 1 m in the 3 directions, x,y,z directions with
g.region.
I thought that perhaps due to the high density of points perhaps i needed
to increase the resolution.
Now the work begins.

 I am viewing the data with Isosurface with the 3d viewer, under (cant
forward image as too large for mail list)
View tab->3D raster, -> choose 3d raster -> add isosurface, define the
interval you want to see, and color set as constant (i used bgyr as the
color, but everything turns out blue..).

THANK YOU for your help. will keep u posted on progress.



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Le ven. 16 nov. 2018 à 23:20, Francois Chartier <fra.chartier at gmail.com> a
écrit :

> Finally.  I am was able to make v.vol.rst work.
> How it worked.
> I made the resolution to be 1 m in the 3 directions, x,y,z directions with
> g.region.
> I thought that perhaps due to the high density of points perhaps i needed
> to increase the resolution.
>
> Below I am viewing the data with Isosurface with the 3d viewer, under
> View tab->3D raster, -> choose 3d raster -> add isosurface, define the
> interval you want to see, and color set as constant (i used bgyr as the
> color, but everything turns out blue..).
>
> [image: image.png]
>
>
> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virus-free.
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>
> Le jeu. 15 nov. 2018 à 03:44, Moritz Lennert <mlennert at club.worldonline.be>
> a écrit :
>
>> On 15/11/18 03:06, Francois Chartier wrote:
>> > So i rerun v.vol.rst with new g.region -p3
>> >
>> > C:\>g.region -p3
>> > projection: 1 (UTM)
>> > zone:       17
>> > datum:      nad83
>> > ellipsoid:  grs80
>> > north:      4862000
>> > south:      4825700
>> > west:       609200
>> > east:       651700
>> > top:        250.00000000
>> > bottom:     50.00000000
>> > nsres:      10
>> > nsres3:     504.16666667
>> > ewres:      10
>> > ewres3:     500
>> > tbres:      1
>> > rows:       3630
>> > rows3:      72
>> > cols:       4250
>> > cols3:      85
>> > depths:     200
>> > cells:      15427500
>> > cells3:     1224000
>> >
>> > V.VOL.RST run (below) with increasing DMIN, from 0.5 to 200. finally
>> > worked with 200 m of min spacing. as you can see the majority of the
>> > points are excluded.
>>
>> I'm not familiar enough with the code of v.vol.rst, so I'll have to
>> leave this to Helena and her team.
>>
>> Sorry,
>> Moritz
>>
>
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