Basically, layers are generated in the default format supported by the algorithm (that is, the first one in the list returned by getSupportedOutputVectorLayerExtensions() from the corresponding provider)
Forcing a format for all intermediate layer will have some advantages, but also some drawbacks (for instance, if chaining 2 SAGA raster algorithms, using any format other than the default SAGA sdat will involve extra conversions) The issue with the attribute names can be fixed if the defautl format for native qgis algorithms is switched to someting like geopackage (i think this wont have any side effect), but it wont help if using an external tool like SAGA, since SAGA requires shapefiles. Not sure that solves that question. Let me know if you want more detail about this. I will be glad to discuss this in detail if you are coming to Girona. Ideas and feedback are of course welcome Cheers 2016-05-19 20:15 GMT+02:00 kimaidou <kimai...@gmail.com>: > Hi all, > > Thanks Paolo and Tom for your interest in this topic ! > > Anyone has any idea about the current status : spatialite, memory, etc. (cf > my first email) ? > Sorry for answering again, but this is still not very clear for me. > > Thanks in advance > > Michaël > > 2016-05-16 14:43 GMT+02:00 Tom Chadwin <tom.chad...@nnpa.org.uk>: >> >> I hope this isn't irrelevant, but I wonder if change here might help me >> with >> an issue I've had with using processing algorithms in sequence in Python. >> I >> never got any answer to my SE question >> >> (http://gis.stackexchange.com/questions/175952/pyqgis-save-raster-as-rendered-image-then-use-gdal-tools-on-it), >> and I've never been able to solve the problem. >> >> If file-locking is the cause of the problem, moving to either memory >> layers >> or Spatialite could potentially solve this. But I could be completely >> wrong. >> >> >> >> -- >> View this message in context: >> http://osgeo-org.1560.x6.nabble.com/Processing-current-status-of-in-between-layers-while-running-models-tp5266633p5266638.html >> Sent from the Quantum GIS - Developer mailing list archive at Nabble.com. >> _______________________________________________ >> Qgis-developer mailing list >> Qgis-developer@lists.osgeo.org >> List info: http://lists.osgeo.org/mailman/listinfo/qgis-developer >> Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-developer > > > > _______________________________________________ > Qgis-developer mailing list > Qgis-developer@lists.osgeo.org > List info: http://lists.osgeo.org/mailman/listinfo/qgis-developer > Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-developer _______________________________________________ Qgis-developer mailing list Qgis-developer@lists.osgeo.org List info: http://lists.osgeo.org/mailman/listinfo/qgis-developer Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-developer
