Andrew I opened a thread on QGIS forum and posted screenshots of the example of Mastermap from OS with Google layer background and some labeling.
These might help: - If you are using Windows, for uncompressing files you can use PeaZip which is free and open source as opposed to WinZip which is a shareware. - I noticed gml is a bit slow. It might help to convert the files to spatialite which you can edit in QGIS and does not have some of shapefile limitations. - The orientation was fine for me. (Check the flow direction on the first image.) Cheers Saber > I have old sample OS .gz files, but it would be best to use their current > ones. The data SHOULD be available via the "Download our sample data" > section at www.ordnancesurveymastermap.com/ (I can't find a direct link to > files), but it wouldn't work when I tried. I've reported the problem to OS > and am waiting for a human response. > A further source of additional information is the OS XML Schema > Respository > www.ordnancesurvey.co.uk/oswebsite/xml/schema/index.html, but I don't know > enough about QGIS to understand how to use these. > I've tried an old sample .gz file with both 1.6 and 1.7. Neither version > supports direct opening of .gz (which would be the simplest way for new > users), but actually open the unzipped .gml files. I have had problems in > the past with older versions of WinZip (e.g. 12.0) where they couldn't > unzip > this format correctly, but gzip or other alternatives worked. The latest > WinZip (15.0.) also seems to work, although you have to enter the > extension > of the file to expand, as it doesn't know to add .gml. > Unless the latest format has changed, OS uses the 'orientation' attribute > for text angle, but the value seems to be (degrees * 10). The loaded GML > layer doesn't allow editing, so it isn't possible to add a further > attribute > calculated from 'orientation'. Saving as a shapefile under 1.6 fails with > an > error because, when the longer GML attribute names are trimmed to ten > significant characters, there are duplicate attribute names. > > Andrew > ________________________________________ > From: Noli Sicad [mailto:[email protected]] > Sent: 04 March 2011 05:59 > To: Andrew Chapman > Cc: [email protected] > Subject: Re: [Qgis-user] Public Sector Mapping Agreement > > Hi Andrew, > >> To encourage take-up for both GIS and QGIS, it may help if there were >> tutorials to take a new user of GIS through the steps to download data > from >> Ordnance Survey (probably only in GZ format for the topology layers). >> To date I've been getting data as shapefiles - when I last tried (an > earlier >> version) QGIS wouldn't load .gz and the support for .gml may have been >> incomplete. >> Is anyone else using Ordnance Survey .gz files directly? >> Would the best advice for users new to GIS be to convert to shapefiles >> or >> use a database (something I've not yet managed to do)? >> Are there any UK users involved with town or parish councils? > > I think it would be wise to put an example of this OS gz file so we > can try if we can open it with QGIS. Just a very simple example of the > file :-). > > Then, post the URL where we can download it. > > Noli > ________________________________________ > No virus found in this message. > Checked by AVG - www.avg.com > Version: 10.0.1204 / Virus Database: 1435/3479 - Release Date: 03/03/11 > > _______________________________________________ > Qgis-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/qgis-user > _______________________________________________ Qgis-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-user
