These commands allow one to solve Patterson functions interactively or to check out the results from an automatic system.The proposed heavy atom sites must exist as a molecule in O, together with unit cell and symmetry (see Symm_setup). The atom selection property [mol]_atom_select is used to switch on or off the use of a particular atom to the cross vector calculation. It can be defined with the Select menu.
A molecule PATT must exist and have enough entries to satisfy the number of cross vectors that are generated. It can be made with Patt_setup or Water_init. Before using these commands, it is helpful to have an object displaying the unit cell, and map objects of Harker sections and 3-D volume elements in the Patterson function.