Thanks Nathan for merging [1]. Now looking forward to the new release of the Expressions Plus QGIS plugin :-).
:Stefan [1] https://github.com/NathanW2/qgsexpressionsplus/pull/8#issuecomment-312486509 2017-06-30 12:21 GMT+02:00 Stefan Keller <[email protected]>: > Hi Nathan > > Only partially related to this thread as a shy reminder: > My intern Simran recently has made a pull request [*] for your nice > Expressions Plus Plugin QGIS plugin. > > These are the proposed additional functions: > * max_incremented() - an "autoincrement" id function > * hstore - support of a key-value pair set/string > * nullif() - returns None if arg_1 equals to arg_2 otherwise arg_1 > * get_env_variable() and set_env_variable() > * jitter_geometry() > > These expression functions could be of interest for workshops like the > mentioned one. > > Cheers, Stefan > > [*] https://github.com/NathanW2/qgsexpressionsplus/pull/8 > > > 2017-06-19 14:36 GMT+02:00 Neumann, Andreas <[email protected]>: >> Hi Nathan, >> >> Thank you for the explanation. Makes sense. I will pass this on in the >> workshop. >> >> Andreas >> >> On 2017-06-19 14:12, Nathan Woodrow wrote: >> >> Hey Andreas, >> >> They are really two different things. $geometry is really a function that >> takes no arguments. This has been deprecated in favour calling with () e.g >> geometry(). @ is only for variables. >> >> So you can explain it that $ used to be a shorthand way of calling a >> function that took no arguments which has now been replaced with () at the >> end to call it. $area = area(). This becomes important because now we >> support optional arguments meaning you can take 0 to N arguments. >> >> - Nathan >> >> On Mon, Jun 19, 2017 at 9:53 PM, Neumann, Andreas <[email protected]> >> wrote: >>> >>> Hi, >>> >>> While preparing for a workshop on expressions I wonder how to explain why >>> some variables are referenced with the $ sign (like $geometry) while other >>> variables start with the @ sign, like @row_number, @layer_name. >>> >>> I know that it has historical reasons and that variables with the @ sign >>> are newer and are implemented using a different technology. >>> >>> But are there plans to get rid of the old $ sign notation and move >>> everything to the @ sign notation? >>> >>> Just wonder how I best explain this to the participants of the workshop. >>> >>> Thanks for your reply, >>> >>> Andreas >>> >>> >>> >>> _______________________________________________ >>> 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 _______________________________________________ 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
