os_cat is a field used for styling in OS layers. The complication is (at least last I checked) the field doesn’t exist in the data as shipped. There are some SQL files on the OS website for creating os_cat (calculated from a combination of other fields) in PostGIS, but I’m not sure how that would be applied to shapefiles.
I’m sure that OS have released proper QGIS Style Files now as well as SLDs. I can’t find them at the minute (too early on a Monday morning) but I’ll let you know when I do. Cheers Tom From: qgis-user-boun...@lists.osgeo.org [mailto:qgis-user-boun...@lists.osgeo.org] On Behalf Of Giuseppe Sucameli Sent: 01 September 2014 08:34 To: David James Cc: qgis-user ML Subject: Re: [Qgis-user] Help with Ordnance Survey SLD's for OS Mastermap Hi David, IIRC that kind of variables are not supported by QGIS neither by the SLD standard. You must replace it with the correct SVG filename. Anyway, what is "os_cat" supposed to be? Is it a layer's field name? Regards. Sent from mobile. Sorry for being short. -- Giuseppe Sucameli Il 01/set/2014 00:01 "David James" <da...@djames.org.uk> ha scritto: I'm very much a beginner with QGIS and I'm trying to run long before I can crawl ... I'm trying to use the Ordnance Survey MasterMap Topography layer SLD's (from http://www.ordnancesurvey.co.uk/docs/styled-layer-descriptors/topography-sld.zip) to style the sample OS MasterMap data. Initially, I found that when I loaded the SLD file into QGIS, only the first rule was being picked up, but eventually I found tjmgis's answer in http://gis.stackexchange.com/questions/69854/styling-os-vectormap-local-in-qgis (that all the <FeatureTypeStyle> and </FeatureTypeStyle> except the first and the last in the SLD files need removing) and now I'm making progress. I'm struggling with one problem: there's a rule called <Name>Vegetation (pattern) - 1:35 to 1:3,496</Name> which specifies the SVG file as xlink:href="osmmsymbols/${os_cat}.svg"/> QGIS is showing me question marks in these areas (which I think means it is not finding the SVG file). Does QGIS support this use of ${os_cat} (and if so, what do I need to do to make it work?) or do I have to replicate the rule with explicitly named SVG files for all the different vegetation types? David -- David James da...@djames.org.uk _______________________________________________ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
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