Hi Vaclav, other questions: how many data points did you use, and how many grid cells in the 3d grid ?
Le lun. 1 oct. 2018 à 22:01, Vaclav Petras <wenzesl...@gmail.com> a écrit : > On Sat, Sep 29, 2018 at 4:45 PM Francois Chartier <fra.chart...@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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