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

[Francois Chartier]

does anybody know how to resolve this?

On Thu, Nov 8, 2018, 06:23 Francois Chartier <fra.chartier at gmail.com wrote:

> Hi,
>
> I am trying to use V.VOL.RST to interpolate particle size for soil
> samples.   i obtain the error message to increase DMin. unfortunately i
> have a data point every meter vertically and a total of 190K.  if grass is
> asking to increase DMIN, which i have increased to 30 m to try to see if
> this was the pb, can I resolve this by reducing the Segment size?
>
> * COMMAND OUTPUT*
> (Thu Nov 08 06:17:32 2018) Command finished (10 sec)
>
> (Thu Nov 08 06:20:40 2018)
>
> v.vol.rst input=geotechNov8 at Toronto wcolumn=dbl_2 npmin=50 npmax=200
> dmin=30 elevation=Geotech3DNov8
> 188692 records selected from table
> WARNING: Some points outside of region -- will ignore...
> ERROR: Points are too concentrated -- please increase DMIN
> (Thu Nov 08 06:20:51 2018) Command finished (10 sec)
>
>
> *METADATA*
> Thu Nov 08 06:11:32 2018) Command finished (0 sec)
>
> (Thu Nov 08 06:19:17 2018)
>
> v.info map=geotechNov8 at Toronto
>
>
>  +----------------------------------------------------------------------------+
>  | Name:            geotechNov8
>    |
>  | Mapset:          Toronto
>    |
>  | Location:        Toronto
>    |
>  | Database:        C:\Users\Francois Chartier\Documents\grassdata
>     |
>  | Title:
>    |
>  | Map scale:       1:1
>    |
>  | Name of creator: Francois Chartier
>    |
>  | Organization:
>     |
>  | Source date:     Thu Nov 08 06:06:56 2018
>     |
>  | Timestamp (first layer): none
>     |
>
>  |----------------------------------------------------------------------------|
>  | Map format:      native
>     |
>
>  |----------------------------------------------------------------------------|
>  |   Type of map: vector (level: 2)
>    |
>  |
>     |
>  |   Number of points:       188692          Number of centroids:  0
>     |
>  |   Number of lines:        0               Number of boundaries: 0
>     |
>  |   Number of areas:        0               Number of islands:    0
>     |
>  |   Number of faces:        0               Number of kernels:    0
>     |
>  |   Number of volumes:      0               Number of holes:      0
>     |
>  |
>     |
>  |   Map is 3D:              Yes
>     |
>  |   Number of dblinks:      1
>     |
>  |
>     |
>  |   Projection: UTM (zone 17)
>     |
>  |
>     |
>  |               N:           4870782    S:           4825713
>    |
>  |               E:            651697    W:            609201
>    |
>  |               B:                 0    T:               352
>    |
>  |
>     |
>  |   Digitization threshold: 0
>     |
>  |   Comment:
>    |
>  |
>     |
>
>  +----------------------------------------------------------------------------+
> (Thu Nov 08 06:19:18 2018) Command finished (0 sec)
>
>
>
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