[GRASS5] problem with v.vol.rst

Jaro Hofierka hofierka at geomodel.sk
Thu Mar 30 02:17:05 EST 2006


Istvan,

The module uses a segmantation procedure for datasets with more ~600 
points. If the number is less then you can interpolate without 
segmentation (i.e. "segmax=600" option should be added to the command I 
believe). Otherwise you must use higher npmin to include more points for 
interpolation within the segment.

Hope this helps.

Jaro


Stefán István wrote:

> Hello List,
> I've been routed from the general Grass list to here with my problem.
> I have a problem with v.vol.rst module:
> If I set the tension parameter to high value (over 40) then after I make 
> slices from the volume, the resulted 2d raster maps will contain squares.
> The author of the r3.to.rast module says that it could be a problem of the 
> interpolation module. In the attached jpeg you can see what I mean under 
> "squared".
> 
> Thank you for your help,
> Istvan
> 
> 
> 
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