[GRASS5] data format for s.vol.rst?

[Markus Neteler]

Helena, 

On Mon, Apr 23, 2001 at 07:09:59PM -0500, Helena wrote:
> Markus the field description for s.vol.rst in manual is confusing - field
> is not
> 
> z-field attribute because z is the third dimension
> it should be w because the function is w=f(x,y,z) so the data would be
> x,y,z,w and the multiplier  is referred to as wmult later.
> I also suggest to write for input file that the input is x|y|z|%w
> (Jaro, Markus is that right? Was it updated to the new format? can it be
> x|y|z|#n %w1 %w2 %w3,
> if yes then x,y,z,w should be removed from the manual as it is confusing)

Yes, I have updated the page. Please check the page:

http://www.geog.uni-hannover.de/grass/gdp/html_grass5/html/s.vol.rst.html
(it includes Jaro's today's updates).

> On another issue, npmin 100 is not enough if segmax is 50 for heterogeneous
> data.
> Because the computers are much faster now I suggest to hardcode
> segmax as 40 and npmin as 300 for both s.surf.rst and s.vol.rst
> and remove those two parameters to reduce their number in GRASS5.1.
> I have never changed segmax since 1991 and I stoped experimenting
> with npmin in about 1995 and use 300. It is a certain loss of flexibility
> but whoever wants to play with those parameters can work with the source.
> Let me know what fo you think about such change.
Shall I change above not now for 5.0.0? When you reply, please keep
above in the mail for me :-) I suggest to change now.

Regards

 Markus


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