[GRASS-user] OpenFileGDB input error

[Markus Metz]

On Mon, Sep 25, 2017 at 6:07 PM, Rich Shepard <rshepard at appl-ecosys.com>
wrote:
>
> On Mon, 25 Sep 2017, Markus Metz wrote:
>
>> A multi-surface has sneaked into the layer with multi-polygons, that's
>> causing the error in v.in.ogr.
>
>
>   Huh! In my naivity I would assume a surface is 3D and a polygon is 2D.
> What I read suggests there are two layers; perhaps the surfaces are crop
> type and the polygons are farm boundaries?

these multi-surfaces are in the layer with multi-polygons. OGR calls these
geometries multi-surfaces. Investigating a bit more, I found curve-polygons
within these multi-surfaces. Curve-polygons are in turn not ordinary
polygons, but defined by curves, and v.in.ogr (most GIS software in
general) does not support curves.

Markus M

>
>> We could change that error into a warning, skipping OGR geometries of
>> unsupported type.
>
>
>   As long as the crop categories and specifics are in the sqlite database
> associated with each polygon the necessary information is available.
>
> Thanks,
>
>
> Rich
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