[gdal-dev] OGR support for VPF DNC?

Chaitanya kumar CH chaitanya.ch at gmail.com
Tue Apr 10 10:13:50 EDT 2012


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.

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.

17.2416N 80.1426E
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