[ccp4bb]: real space difference map?

[Peter Nollert <nollert@msg.ucsf.edu>]

***  For details on how to be removed from this list visit the  ***
***    CCP4 home page http://www.dl.ac.uk/CCP/CCP4/main.html    ***

Dear all,

I'd like to compute a difference map, problem is
that one dataset is in C2221 and the other in P63.
I guess there's no way to do a difference fourier
(fo-fo). But it should work in real space.
How do I calculate a real space difference map?

Thanks,
Peter