removes the space group symmetry NOSYM(obj) The function reduces the crystal symmetry to 0 and but keeps all atomic positions, that are now all symmetry inequivalent. Input: obj sw class object. Output: The obj input will have obj.lattice.sym field equal to zero and the obj.unit_cell field will contain all the generated atomic positions. Example: sw_addsym('x+1/2,y+1/2,z;x+1/2,y,z+1/2;x,y+1/2,z+1/2','FCC'); cryst = sw; cryst.genlattice('lat_const',[8 8 8],'sym','FCC') cryst.addatom('r',[0 0 0],'label','Atom1') cryst.nosym The example creates four equivalent atomic positions, after the nosym() command, the cryst.unit_cell.r contains the four generated positions, that are not symmetry equivalent any more. See also SW, SW.NEWCELL.