[GRASS-user] 3D unstructured Grid

[Francois Chartier]

Amazing!  If you data represents a property (K) that is given for the top
elevation (Z) at which it is identified in the database.
With v.vol.rst, are you able to assign that property downwards until the
next property value.
For example, in the example on the webpage, there is a 3D raster for soil
moisture; if the soil moisture is measured only for the top of a cylinder
along your vertical hole, the next moisture measurement is taken at a lower
depth, and the intervals (cylinder length) are not the same along that
vertical axis?

Le lun. 1 oct. 2018 à 22:01, Vaclav Petras <wenzeslaus at gmail.com> a écrit :

> On Sat, Sep 29, 2018 at 4:45 PM Francois Chartier <fra.chartier at gmail.com>
> wrote:
>
>> Can Grass GIS create a 3D unstructured grid based on a 3D point data set ?
>>
>
> All data and visualizations at the following website were created in GRASS
> GIS including a 3D regular grid (3D raster in GRASS GIS) interpolated from
> a set of 3D points (vector which is 3D, i.e. with z, in GRASS GIS). Points
> were soil properties measurement at different depths, 3D raster is then
> continuous representation of a selected property.
>
> https://geospatial.ncsu.edu/geoforall/multidim-geovis.html
>
> Module used for interpolation was v.vol.rst:
>
> https://grass.osgeo.org/grass74/manuals/v.vol.rst.html
>
> Vaclav
>
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