I haven't used geojson as a data source, but maybe if you shared a small example of your map file and the data it would help.
On Tue, Oct 24, 2017 at 8:43 AM, Tuffa <ch...@wherryengineering.co.uk> wrote: > Hello! > > I am rendering a map of African countries from a single geojson file. Each > country is represented as a feature with geometry. I've added a custom > value to each feature's properties, that I would like to influence the > style > selected by MapServer to render the country outline, however I cannot see > how it is possible to configure the layer so that MapServer uses the new > 'value' property as the input for the style expressions that I have > created... > > Doing the same job, using a database as the datasource is easy! I simply > craft a SQL 'select' statement for the mapfile's Layer 'DATA' to retrieve > the desired value and it becomes available to MapServer using the > '[value_name]' syntax in style expressions. > > This same approach does not appear to work for GeoJSON. MapServer states > that the extent of support for the 'DATA' is driver-dependant, which is > fair > enough; examination of the geoJson driver doc in the GDAL doc's does not > help me though. > > Can anyone help? > > Regards > Chris > > > > -- > Sent from: http://osgeo-org.1560.x6.nabble.com/Mapserver-User- > f4226646.html > _______________________________________________ > mapserver-users mailing list > mapserver-users@lists.osgeo.org > https://lists.osgeo.org/mailman/listinfo/mapserver-users -- Richard W. Greenwood, PLS www.greenwoodmap.com
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