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 -- Spatialys - Geospatial professional services http://www.spatialys.com
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