On Wednesday 13 February 2008 17:47:34 Laurent Maveyraud wrote:
> I am trying to read a CCP4 electron density map into turbo_frodo, without
> success. It seems that the mappage program that was distributed with
> turbo_frodo does not work on our system (Linux Mandrake) : it produces a
> segmentation fault. Compilation of the source of mappage generates many
> error messages, and my fortran was never good enough to allow me to go into
> source code. Using mapman to write a TURBO map generates something that can
> be read and displayed in turbo, but that does look like an electron density
> map...

USF Mapman (http://alpha2.bmc.uu.se/usf/rave.html) should be able 
to do it with a script like this:

#!/bin/csh -f
#
# Convert CCP4 maps to TURBO format
#
setenv MAPSIZE 7000000
#
mapman <<EOF
read m1 name_fofc.map CCP4
read m2 name_2fofc.map CCP4
write m1 name_fofc.map TURBO
write m2 name_2fofc.map TURBO
quit
EOF

The MAPSIZE may need to be adjusted.

Hope this helps,

-- 
Lieven Buts
Laboratorium voor Ultrastructuur
Vrije Universiteit Brussel

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