Dear all, JFYI Thomas Leppelt and i have developed a new version of the temporal algebra that brings new spatio-temporal operators and new functions. This version of the algebra should be final and will be introduced in a paper that we will write soon. The algebra is available in latest grass trunk (aka 7.1).
I have recently added a new approach to the existing algebra that uses the common granularity of all space time datasets in an expression to sample them for map calculations. In this approach there is no need for spatio-temporal topological operators. All STDS will have the same granularity while processing, hence the look and feel will be like r.mapcalc expressions. This approach will also be introduced in our new paper (that has to be written). I added plenty of tests in the temporal framework and plan to replace the t.rast.mapcalc and t.rast3d.mapcalc approaches with the new granularity based one. Following a suggestion from Martin Landa the t.*.mapcalc2 modules that make use of the temporal algebra are now renamed to t.*.algebra modules. Best regards Soeren _______________________________________________ grass-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-dev
