[GRASS-user] Why does v.split convert 3D vector to 2D?

Markus Metz markus.metz.giswork at googlemail.com
Thu Apr 22 12:39:22 EDT 2010


On Tue, Mar 9, 2010 at 9:52 AM, Markus Neteler <neteler at osgeo.org> wrote:

> On Sun, Mar 7, 2010 at 8:50 PM, Dwight Needels <needels at translucida.com>
> wrote:
> > On Mar 7, 2010, at 2:10 PM, Markus Neteler wrote:
> >> On Sun, Mar 7, 2010 at 7:13 PM, Dwight Needels <needels at translucida.com
> >
> >> wrote:
> >>> I have a 3D vector [test_3D] created using v.drape, confirmed as 3D
> with
> >>> v.info. I used v.split to split the polyline at the vertices:
> >>>
> >>> v.split input=test_3D output=test_3D_split vertices=2
> >>>
> >>> The resulting vector [test_3D_split] is a 2D vector (i.e. it lost the z
> >>> geometry data according to v.info, and v.to.db reports all slopes =
> 0).
> ...
>
> [...]


> Looks good:
>
> [...]

>  <http://v.info>
>
> -> nice 3D vector lines
>

... now also for length option

Markus M
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