[GRASS-user] OpenFileGDB input error

[Even Rouault]

On lundi 25 septembre 2017 11:04:35 CEST Rich Shepard wrote:
> On Mon, 25 Sep 2017, Markus Metz wrote:
> > 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,
> 
>    Thanks for exploring the data files. Please suggest how I could extract
> the useful polygons and attribute data. I know that agencies assume everyone
> buys ESRI's software and they're not concerned with accommodating those of
> us who do not. In the mid-1990s everyone used ESRI's export format (.e00)
> and it was easy to write input filters for grass back then.

You could for example use ogr2ogr to convert the curve geometries to linear ones with

ogr2ogr -f sqlite out.db in.gdb -nlt CONVERT_TO_LINEAR

Even


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