Hi, In QGIS there is something what we call 'Geometry-generators': you actually generate a geometry based on some other geometry and some parameters, coming from 'expressions'.
In this way it is for example possible to create some kind of polygon based on a point layer. My goal: create rotated 'wedges/sectors' with a data-based rotation from a point layer (talking about GSM 'beams' here), but (tricky part): size depending on the current map scale... My plan to mimic this in a Geoserver WMS: - have a point layer in postgis - create a postgis function to create a wedge (taking the attribute in account) - create a SQL view layer which creates a geom by calling this function Question: is it possible for geoserver to 'insert' the scale (as being requested in the WMS request) into this function-call as parameter. Something like $SCALE or $SCALE_DENOMINATOR or so, which is to be replaced by Geoserver BEFORE handling over the query to postgis? Looking into the docs[0], it looks like it would be possible with a (client site added) parameter. But in this case the 'scale'-information should come from the WMS-request-info (as it is not possible to change the client apps for us). Mmm, now I am afraid this is maybe hard as it makes it impossible to 'cache' this view... Anyone idea's? Regards, Richard Duivenvoorde [0] https://docs.geoserver.org/stable/en/user/data/database/sqlview.html _______________________________________________ Geoserver-users mailing list Please make sure you read the following two resources before posting to this list: - Earning your support instead of buying it, but Ian Turton: http://www.ianturton.com/talks/foss4g.html#/ - The GeoServer user list posting guidelines: http://geoserver.org/comm/userlist-guidelines.html If you want to request a feature or an improvement, also see this: https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer [email protected] https://lists.sourceforge.net/lists/listinfo/geoserver-users
