def METHOD_NAME(self, vert, f, XX, YY, ZZ, fx,fy,fz, X_X, Y_Y, Z_Z, i_over):
    ''' main function '''
    out=[]
    for n in range(vert):
        i = eval(i_over)
        XX = eval(X_X)
        YY = eval(Y_Y)
        ZZ = eval(Z_Z)
        X = eval(fx)
        Y = eval(fy)
        Z = eval(fz)
        out.append((X,Y,Z))
    return [out]