On 13 May 2018 at 01:59, Anita Graser <[email protected]> wrote: > Hi, > > I'd like to raise this on the dev list since it seems to be a bug. Ticket: > https://issues.qgis.org/issues/18384 > > Here is the basic issue as Michel observed it: > > On Tue, Mar 6, 2018 at 2:47 PM, Michel Stuyts <[email protected]> > wrote: >> >> When creating a style for a polygon layer I noticed a difference between >> QGIS 2.99 (Windows standalone installer) and QGIS 3.0 (OSGeo4W) when I use >> segments_to_lines & @geometry_part_num. >> * I created a polygon layer and added some polygons. >> * Then I started editing the layer style: >> * I added a Geometry generator as symbol layer to create a >> Linestring type that contains segments_to_lines($geometry) >> * Then I changed the line type of the result to a "Marker line" >> * Then I changed the Symbol layer type of this "Marker line" to >> "Font marker" >> * Then I changed the "Data defined override" of the content of this >> font marker to @geometry_part_num >> * Then I changed the font size of the font marker >> The results are different in QGIS 2.99 and 3.0 (see images below). Is this >> a bug in 3.0 or is it an intentional change? The result in QGIS 2.18 is the >> same as in 2.99. The result in QGIS 3.1 is the same as in 3.0. > > > I've actually been able to reproduce 2.18 results in 3.x but only if > @geometry_part_num was used in a different context besides the marker line > as well. > > Here's a screencast of what I think is pretty odd behavior: > https://www.dropbox.com/s/cvyqeecpq0uis1j/QGIS%20Geometry%20Generator%20geometry_part_num.mp4?dl=0 > > Took me a couple of hours to find out why @geometry_part_num behaved > seemingly randomly. > > Was this a purposeful change?
Nope, just a bug. I know what the issue is here, I'll fix when I get a chance. Nyall > > Regards, > Anita > > > > > _______________________________________________ > QGIS-Developer mailing list > [email protected] > List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer _______________________________________________ QGIS-Developer mailing list [email protected] List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
