[gdal-dev] OGR support for VPF DNC?

[Even Rouault]

Selon Chaitanya kumar CH <chaitanya.ch at gmail.com>:

> Andreas,
>
> Could you first test your data with the latest version of GDAL? The latest
> Windows binaries can be obtained through the OSGeo4W installer.
>
> In any case, I couldn't find any reference to DNC in the OGDI library,
> which is used by OGR to read VPF files.

OGDI should be able to read DNC files. See
http://osdir.com/ml/mapserver-users-gis/2006-01/msg00235.html

But that particular dataset might trigger bugs in the OGDI VPF driver.

>
> On Tue, Apr 10, 2012 at 5:22 PM, Andreas Oxenstierna <ao at t-kartor.se> wrote:
>
> > I cannot make OGR work with VPF DNC data.
> > ogrinfo and ogr2ogr crashes when trying to read data from any level inside
> > the VPF structure. DHT and LAT files do exist.
> > OGR does work for standard VMAP0 and VMAP1 data.
> > Is this a known limitation?
> > Does DNC require some special syntax?
> > I have used e.g. ogrinfo gltp:/vrf/C:\xxx and ogrinfo gltp:/vrf/C:/xxx
> >
> > Tested version:
> > 1.7.0b2 as included in FWTools 2.4.7 on Windows
> >
> > I noted that only FME seems to be able to always correctly read the DNC
> > data we have available. For example vpfview, nimamuse and ArcGIS do have
> > various issues.
> >
> > Best Regards
> >
> > --
> > Andreas Oxenstierna
> > T-Kartan Produkt AB
> > mobile: +46 733 206831
> > mailto: ao at t-kartor.se
> > http://www.t-kartor.com
> >
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> >
>
>
>
> --
> Best regards,
> Chaitanya kumar CH.
>
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