Re: [ccp4bb] carving up maps (was re: pymol help)

2007-11-01 Thread Warren DeLano
, grey70] color ramp, mesh Cheers, Warren -Original Message- From: CCP4 bulletin board [mailto:[EMAIL PROTECTED] On Behalf Of Robert Esnouf Sent: Thursday, November 01, 2007 5:06 AM To: CCP4BB@JISCMAIL.AC.UK Subject: Re: [ccp4bb] carving up maps (was re: pymol help) Having put the "ma

Re: [ccp4bb] carving up maps (was re: pymol help)

2007-11-01 Thread Robert Esnouf
Having put the "make my density look publishable" (mapcover) command in BobScript, my conscience wouldn't ever let me use it as it gives a false impression of experimental maps! It is useful, though, in a couple of cases: where the map is not representing electron density but calculated from th

Re: [ccp4bb] carving up maps (was re: pymol help)

2007-10-29 Thread Warren DeLano
CCP4BB@JISCMAIL.AC.UK Subject: Re: [ccp4bb] carving up maps (was re: pymol help) This is not such a problem when using the old "Map-cover" command in O, because the cut-offs are flat planes, you would get cubic density around each atom which would raise the suspicion of even the most gullibl

Re: [ccp4bb] carving up maps (was re: pymol help)

2007-10-29 Thread Artem Evdokimov
I don't like using 'carve' options but I can see where it may come useful. On the positive side, in the age where deposition of coordinates and structure factors is almost mandatory, there shouldn't be a question of how your map looks because presumably the skeptical reader can go and calculate on

Re: [ccp4bb] carving up maps (was re: pymol help)

2007-10-29 Thread Edward Berry
This is not such a problem when using the old "Map-cover" command in O, because the cut-offs are flat planes, you would get cubic density around each atom which would raise the suspicion of even the most gullible reader. But a better solution would be to not contour the carved surface- leave a ga

Re: [ccp4bb] carving up maps (was re: pymol help)

2007-10-29 Thread Bart Hazes
Anastassis Perrakis wrote: Dear Andrew, Thank you for that posting; I would like to simply agree with the Bobscript manual and your suggested practice. I think the 'carve' commands should not be there; if you wonder why, take a ligand, put it wherever you want in space, set the map sigma to

Re: [ccp4bb] carving up maps (was re: pymol help)

2007-10-29 Thread Anastassis Perrakis
Dear Andrew, Thank you for that posting; I would like to simply agree with the Bobscript manual and your suggested practice. I think the 'carve' commands should not be there; if you wonder why, take a ligand, put it wherever you want in space, set the map sigma to -0.5, display a map with c