Hi Chuck, Sorry - I thought I sent this earlier. > Date: Tue, 2 Aug 2011 12:47:50 -0700 > From: Chuck Young <[email protected]> > Subject: [Qgis-user] Isolate one polygon from a layer > To: [email protected] > Message-ID: > <cakckdbrby1wxdrpa415+j+a7wgzh2hh+irkt2fzobpumot9...@mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > I am trying to get an individual image of a polygon from a layer where there > are numerous polygons that are adjacent to each other and share common > boundaries. What I need to do is be able to hide the boundaries of the > surrounding polygons while getting a view of the selected polygon for > display. > > All data is stored in a Spatialite database. > > Thanks in advance!! > > Chuck
If you only need to hide the other features in the same layer, you can do this with most types of layer by right-clicking on the layer in the layer control, and choosing query (it is available in the layer menu, too). The polygon will need to have attribute data (in the simplest case an ID or name column) which enables you to distinguish it from the rest of the layers with a query. Alternatively, in some situations it might be convenient to put a polygon layer under everything else, use fill style = no brush and border style = no pen, and just click somewhere to select and display the polygon of interest. If you also want to hide features outside that polygon which are in other layers, then it is not possible. There is a feature request, but I doubt anyone currently intends to work on implementing it - see http://hub.qgis.org/issues/3253. If you need to do it in the meantime you would need to either do what I described there, or use "Vector->geoprocessing tools->clip" on all your layers. Regards, Alister _______________________________________________ Qgis-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-user
