Dissipative phenomena in extended-body interactions - I. Methods: Dwarf galaxies of the Local Group and their synthetic CMDsS. Pasetto, G. Bertelli, E. K. Grebel, C. Chiosi and Y. FujitaA&A, 542 (2012) A17DOI: https://doi.org/10.1051/0004-6361/201117612