Why don't you calculate the FFT over the whole asymmetric unit? That is the FFT default I think Eleanor
But I think the COOT option works too, but it will also require that your input map covers the asymmetric unit. Eleanor On 19 Sep 2012, at 23:25, Niu Tou wrote: > Dear colleagues, > > Is there any program can rotate a density map (generated by FFT, could be > read in Coot and Pymol) given the matrix? I have tried Extension->Maps-> > Transform map by LSQ model fit, it looks doesnot work. While the program > Edit/Rotate map & Mask in CCP4 gave an error message: mapmask: mapextend - > input map does not contain a whole ASU. > > Thanks! > > Niu > > > >