[GRASS-user] Interpolation with v.surf.rst

[Moritz Lennert]

On 03/02/13 12:47, Martin Landa wrote:
> Hi,
>
> 2013/1/16 Margherita Di Leo<diregola at gmail.com>:
>
>>>> If you want to use elevation values from zcolumn, you should not use
>>>> the -z flag. Try instead
>>>> v.surf.rst input=isoline at TOPOIKDATA zcolumn=height elev=elev_1m
>>>
>>> I was thinking to omit such -z flags in G7.
>>>
>>> * if zcolumn is given, use values from this column
>>> * if zcolumn is *not* given use z coordinates (if vector is 2D, print
>>> error).
>
> done in r54865. Testing welcomed.
>

[...]

> * if input is 2D and zcolumn is not given ->  using categories

I'm pretty sure that this will create lots of confusion. I think in this 
case it should fail with an error message.

Moritz