Hey,
here is my report for the project week 15. I worked on the temporal raster algebra. I rewrite the temporal operator analyser to work also with raster functions and implemented the lexical analysis for expressions. Furthermore I added arithmetic operations to the temporal raster algebra for division, multiplication, addition, subtraction and others. Therefore I had to rearrange the command list to work with r.mapcalc expression strings. In the next week I will continue to finish the implementation of these arithmetic operations and add some more raster functions. All problems, that occurred, could be solved.
Greetings
Thomas
Link to project wiki page:http://grasswiki.osgeo.org/wiki/GRASS_GSoC_2013_Temporal_GIS_Algebra_for_raster_and_vector_data_in_GRASS
Link to project repository: https://code.google.com/p/grass-gis-temporal-algebra/