It's very strange to me that it seams so strange to have proportional point size symbology on the base of attributes values. It's a basic feature of cartography...
Some example references I can give: http://mapserver.gis.umn.edu/docs/howto/cartosymbols/#scaling-of-symbols http://demo.mapfish.org/mapfishsample/1.0/examples/geostat/proportionalSymbols.html http://www96.reliefweb.int/tools/details/geospatial-analysis/symbols-and-markers 2008/10/27 Goyo <[EMAIL PROTECTED]>: > OK I read the ticket and I think I've got the point now. First of all > you'll want to know that the lower size limit is gone in 1.0 but I don't > think you're going to get good looking results with your data anyway. > > So you want to tell the sizes for maximum and minimum field values > (whatever they are) and get the size for any value computed by linear > interpolation. > > To be honest I don't see this useful enough (in general) as to justify > the additional clutter in UI. On the other hand that's the way colormaps > are handled in rasters, more or less. > > Just some thoughts. > > Goyo > > El lun, 27-10-2008 a las 21:49 +0100, Goyo escribió: >> Hi Giovanny, >> >> it scales the symbol size, not the attribute values. Since your >> attribute values are big you're getting big symbols. >> >> Goyo >> >> El dom, 19-10-2008 a las 21:15 +0200, G. Allegri escribió: >> > I migrate here a discussion started in a ticket >> > https://trac.osgeo.org/qgis/ticket/960 >> > >> > I change the question asking the following: how to make proportional >> > symbols, i.e. with the size based on a certain attribute? >> > I thought I should use the "Area scale fields" in the Properties >> > window. It does the work, but it doesn't scale the sttribute values, >> > so if the they are "big" the symbols overlay each other even covering >> > the entire screen. >> > >> > I show two images about this: >> > Property dialog: http://www.geospatial.it/allegri/property.png >> > Result: http://www.geospatial.it/allegri/graduated.png >> > >> > I've used the lower allowed "Dimension" (=3)... >> > >> > Am I using a tool that wasn't supposed to do this work? Or am I using >> > it in the wrong way? >> > >> > Giovanni >> > _______________________________________________ >> > Qgis-user mailing list >> > Qgis-user@lists.osgeo.org >> > http://lists.osgeo.org/mailman/listinfo/qgis-user > > _______________________________________________ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user