On 28 June 2014 12:32, Sören Gebbert <soerengebb...@googlemail.com> wrote: > Hi Luca, >
Hi Soeren, > > Yes, it is possible to add any amount of fields in the future. Older > databases must then be updated to support the new fields, otherwise > the updated framework will not work with them. > ok, so maybe it is better to collect idea and change only few times, do you think I should open a ticket? > However, a specific unit field that can be set by the user will > conflict with the unit field of raster and voxel maps. IMHO the unit > of a space time raster dataset should be derived from the units of the > registered raster maps. Well i did not implemented this, since from my > experience are units used very seldom for maps. So the correct > implementation would add a units fields to raster and 3d raster map > tables and to STRDS and STR3DS tables. The STDS SQL code must be > updated to aggregate the unit information. But what to do if map layer > have different units? Or if only a subset of the registered maps have > units? > In r.support there is units field, could we use this? Can you do some example of map layer with different units? > So maybe the semantic type option is sufficient right now? > But it accept only min, max, sum, mean value? > Best regards > Soeren > -- ciao Luca http://gis.cri.fmach.it/delucchi/ www.lucadelu.org _______________________________________________ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev