Frank thanks for your reply. In the meantime, I found a source that is in ESRI Shapefile and is based on VMAP Level 0 Global Base Map Data. I will look more into it since now I am getting more familiar with this matter.
Thanks anyway! On Dec 13, 2007 5:48 PM, Frank Warmerdam <[EMAIL PROTECTED]> wrote: > Konstantinos Vassiliadis wrote: > > I have downloaded the VMAP0 dataset. I was wondering whether it is > > possible to somehow import these data to MapGuide OS Viewer or some > > other client. Essentially I am looking for geospatial data about a > > specific region in Italy - preferrably to be available in the public > > domain but if not it is ok. > > Any ideas please? > > Konstantinos, > > VMAP0 data in VPF format is pretty messy to work with. In theory you can > build OGR with the OGDI add on driver, and use that to access VPF data > like VMAP0. But that would be pretty challenging to get right. > > Alternatively you could use an existing OGR+OGDI build and ogr2ogr to > translate the data you want into shapefiles or something similar that is > more accessable. FWTools includes everything you need > (http://fwtools.maptools.org) but addressing VMAP0 data is still a bit > hard. For a VMAP0 Eurasian CD dataset sitting on disk as /mnt/cdrom/v0eur > I would use the following datasource name for OGR: > > gltp:/vrf/mnt/cdrom/v0eur/vmaplv0/eurnasia > > If you do an ogrinfo on that you will get layer names like: > > 1: [EMAIL PROTECTED](*)_line (Line String) > 2: [EMAIL PROTECTED](*)_text (Point) > 3: [EMAIL PROTECTED](*)_area (Polygon) > 4: [EMAIL PROTECTED](*)_text (Point) > 5: [EMAIL PROTECTED](*)_point (Point) > 6: [EMAIL PROTECTED](*)_line (Line String) > 7: [EMAIL PROTECTED](*)_line (Line String) > 8: [EMAIL PROTECTED](*)_line (Line String) > 9: [EMAIL PROTECTED](*)_area (Polygon) > ... > > You can copy one layer to a shapefile something like: > > ogr2ogr coastl.shp gltp:/vrf/mnt/cdrom/v0eur/vmaplv0/eurnasia \ > "[EMAIL PROTECTED](*)_line" -nln coastl > > But most interesting data from VMAP0 is available from other sources > as shapefiles so my real advice is to dig up one of those sources and > use it. > > Best regards, > -- > > ---------------------------------------+-------------------------------------- > I set the clouds in motion - turn up | Frank Warmerdam, > [EMAIL PROTECTED] > light and sound - activate the windows | > http://pobox.com/~warmerdam<http://pobox.com/%7Ewarmerdam> > and watch the world go round - Rush | President OSGeo, http://osgeo.org > > _______________________________________________ > mapguide-users mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/mapguide-users >
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