I will say, I use GlobalMapper and I quite enjoy the ability for that program to open .gz files. The other advantage is gml seems to compress well, so some may prefer to store it in that format. A .gz format file isn't as common in the windows world, so some people will find it a slight challenge.
On Sun, Mar 27, 2011 at 12:36 PM, Andrew Chapman < [email protected]> wrote: > Hi Brent > The PSMA potentially opens the opportunity to introduce GIS to about 10k > lowest tier UK government organisations (parish and town councils). These > are run by volunteers with generally limited time and normally not a lot of > computing experience beyond a word processor and photo editor. If this type > of person is presented with a long and tortuous route to setup and evaluate > GIS, it just will not happen. > I realise that some of the QGIS community may feel that if users cannot > demonstrate abilities and determination above a certain level then they > shouldn’t be encouraged to get involved, but is that a widely held view? > We know that a .gz is just a compressed .gml file, but in my case it took a > while to find out. Yes, we could tell people to uncompress the file and > leave them to find how… but this just adds one more (admittedly small) > hurdle for them to pass. > Possibly a way round this would be a plug-in to wrap up the (to a new user) > complexity. Once we have a new user up and running, they can develop skills > over time. > Just my thoughts… > > Andrew > ________________________________________ > From: [email protected] [mailto:[email protected]] > Sent: 27 March 2011 18:54 > To: 'Noli Sicad'; Andrew Chapman > Cc: [email protected] > Subject: RE: [Qgis-user] Public Sector Mapping Agreement > > Hi Andrew, > > A gz file is simply a zip file containing compressed files. In this case > compressed GML files. On Linux, gunzip <file.gz> will extract them, on > Windows most unzipping utilities will decompress & extract the contents. > > The uncompressed files do not appear to have a gml suffix, but if QGIS is > set to open "all files" instead of just a specified type, it can determine > the file type from the file contents & open them using OGR. > > I don't see any reason for QGIS to work wth compressed archive files > directly, users can easily extract the contents & then open with QGIS. > > OGR can convert to shapefiles, or load into a database, but neither of > these > is a QGIS specific role, and I'm not sure a QGIS howto is the appropriate > place for an introduction to spatial data mgmt. This would be better done > by > pointing at a PostGIS tutorial. > > Cheers > > Brent Wood > > ________________________________________ > > > _______________________________________________ > Qgis-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/qgis-user >
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