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In version 2.6, new keywords has been added to Expression : * $currentfeature - returns the current feature * $atlasfeature - returns the atlas feature * getFeature - gets a matching feature from a layer But I think, Expression lacks a few keywords : * geometry - returns the feature's geometry * transform - returns the transformed geometry These new keywords can be used with getFeature for some geometry tests like intersects, crosses, contains, etc Tests has been added to geometry and transform in Expression
Updating the srs.db ------------------- The srs.db can be updated from the EPSG codes in the GDAL installation: 1) Install latest GDAL, be sure to configure with --with-python. 2) Set PATH and PYTHONDIR if installed GDAL in non-standard location. 3) Run 'scripts/qgis_srs.sh > new_srs.sql'. It may take a minute or two. 4) Run 'sqlite3 new_srs.db < new_srs.sql'.' 4) Run 'sqlite3 new_srs.db <postprocess_srs.sql' You can use sqlite3 to dump the contents from both srs.db and new_srs.db before you decide to commit. Magnus Homann 2009-08-19