[GRASSLIST:1675] Voxel data

[Artemis]

Hi all,

My question is on working with grid3d
datasets. I have some point data of
the following format:

east north top bottom 

It was taken from bore hole data
and is representing a metal vein
(top and bottom are the top and bottom
of the vein in the hole).

When I interpolate either top or bottom
values with s.vol.idw, I get the vein
displayed but like a thin band stretching
from the very top to the very bottom of the
3d-box.

Perhaps I do something wrong or I need
to get some additional data?

Thanks in advance,

Artemis.