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

[Margherita Di Leo]

Hi,

On Wed, Jan 16, 2013 at 11:54 AM, Martin Landa <landa.martin at gmail.com>wrote:

> Hi,
>
> 2013/1/16 Markus Metz <markus.metz.giswork 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).
>
> What do you think? Something similar was done for v.out.ogr (-z ->
> !-2) some weeks ago. Motto would be: to use z coordinates if the map
> is 3D and the user didn't enter an option or flag which forces to use
> values from attribute table.
>

I would support this approach, it looks more straightforward for the user.

Thank you.

Madi

>
>

-- 
Margherita DI LEO
Postdoctoral Researcher

European Commission - DG JRC
Institute for Environment and Sustainability (IES). Unit H03 – FRC
Via Fermi, 2749
I-21027 Ispra (VA) - Italy - TP 261

Tel. +39 0332 78 3600
margherita.di-leo at jrc.ec.europa.eu

Disclaimer: The views expressed are purely those of the writer and may not
in any circumstance be regarded as stating an official position of the
European Commission.
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