Hi Paolo, On Wed, Jul 24, 2013 at 9:07 AM, Paolo Cavallini <[email protected]>wrote:
> -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Hi all. > I noticed that labels are not placed on topologically wrong polygons. This > makes > sense, but is surprising for the user: could we think of some solution? > I think QGIS should offer the option to on-the-fly try to fix those geometries. This was discussed previously [0], and I think the best solution presented so far is to find a way to incorporate the standalone PostGIS library 'lwgeom' into the QGIS source tree, or just the relevant bits, as Juergen suggested at the end of that thread, and add support in QgsGeometry. As a side note, Spatialite 4.x includes support for the lwgeom library as well, and for the Mac 'homebrew' package manager, which offers an install of QGIS, it causes a circular dependency issue[1]. The solution there was to disable the lwgeom support in Spatialite. Currently, other software that uses the lwgeom lib (I think) also require that PostGIS/PostgreSQL already be installed. Ideally, if someone where to find a way (maybe it is simple, but not for me) to have the lwgeom library compile-able as a standalone library, apart from PostGIS, it would help both the QGIS project and some packaging issues now and down the road. I suppose we could ask Paul Ramsey or Sandro Santilli what they think about such an idea, and if they could help. [0] http://osgeo-org.1560.x6.nabble.com/Add-ST-MakeValid-functionality-to-QgsGeometry-td5002449.html [1] https://github.com/mxcl/homebrew/issues/20373 Regards, Larry > All the best. > - -- > Paolo Cavallini - Faunalia > www.faunalia.eu > Full contact details at www.faunalia.eu/pc > Nuovi corsi QGIS e PostGIS: http://www.faunalia.it/calendario > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.12 (GNU/Linux) > Comment: Using GnuPG with Icedove - http://www.enigmail.net/ > > iEYEARECAAYFAlHv7bwACgkQ/NedwLUzIr4D1ACeKZdyAOUz7SAujvNy5ziztHTq > RM8An05nyhyTMsJlts2GamUi2akvpCPy > =hesG > -----END PGP SIGNATURE----- > _______________________________________________ > Qgis-developer mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/qgis-developer >
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