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[ccp4bb]: maplib fix on CCP4 Problems Page

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Dear All

We have discovered a bug in the maplib patch which was posted on the
CCP4 Problems Page on 20/03/2001 - this was a typo which on systems
gives corrupted values of the mean and rms densities when map files are
written out.

The corrected patch is now on the problems page, along with a patch
which fixes the broken patch (!) - you can find them both at


My apologies to anyone who has had problems using the broken map
library, and to Ian Tickle (who's original fix was mangled).

Please check the CCP4 Problems Pages (at
http://www.ccp4.ac.uk/problems.html) for lists of known problems with
the current release, and fixes where known, and report any bugs or
problems to ccp4@ccp4.ac.uk.

Best wishes


Peter J Briggs, pjx@ccp4.ac.uk   Tel: +44 1925 603826
CCP4,           ccp4@ccp4.ac.uk  Fax: +44 1925 603825
Daresbury Laboratory, Daresbury, Warrington   WA4 4AD