[GRASS-dev] v.in.osm working?

[Even Rouault]

On jeudi 24 août 2017 15:34:11 CEST Markus Metz wrote:
> On Thu, Aug 24, 2017 at 11:15 AM, Even Rouault <even.rouault at spatialys.com>
> 
> wrote:
> > > You can use v.in.ogr directly for OSM PBF files (
> > > 
> > > http://gdal.org/drv_osm.html).
> > > 
> > > 
> > > 
> > > BTW, with GDAL 2.2.1, using OGR_INTERLEAVED_READING=YES does not work
> 
> for
> 
> > > me (empty vector).
> > 
> > Caution: you cannot just specify OGR_INTERLEAVED_READING=YES and loop
> 
> over layers as usual. See the "Interleaved reading" section of
> http://gdal.org/drv_osm.html
> 
> I see, thanks for the hint. That means v.in.ogr must be changed to use the
> special reading mode, or OGR_INTERLEAVED_READING must be unset in v.in.ogr,
> together with a warning.

If you unset OGR_INTERLEAVED_READING, the classical read pattern (loop over layers, and 
for each layer, loop over its features) will work only for small osm/pbf files where the number 
of features in each layer isn't larger than 100K.
For larger files, OGR_INTERLEAVED_READING=YES and the special reading pattern described 
in drv_osm.html is needed.

Even


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