Hi list, Just raising the discussion about what we should do with SAGA Processing algorithms when the results generated by SAGA are known to be incorrect (i.e. there's a bug in SAGA itself).
Specifically, the SAGA difference and symmetric difference algorithms generate incorrect results. See https://issues.qgis.org/issues/21354, and the results from https://github.com/qgis/QGIS/blob/master/python/plugins/processing/tests/testdata/saga_algorithm_tests.yaml#L318 . This seems to be a general problem with the algorithms, not isolated to particular input data. My gut feeling is: we should "deprecate" these algorithms (which means they continue to work for existing models, but are hidden from the UI and cannot be run from the toolbox or added to new models). I don't see the value in exposing broken algorithms when we have robust alternatives (the native QGIS difference/symmetric difference algorithms are very fast, stable, and well tested), and potentially a lot of harm. Thoughts? Nyall _______________________________________________ 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
