maximum density value
mean/average density value
minimum density value
rms deviation of map from mean density
space group number
flag for skew transformation, =0 none, =1 if foll
Machine stamp indicating machine type which wrote file, 17 and 17 for big-endian or 68 and 65 for little-endian.
Character string 'MAP ' to identify file type
axis corresponds to columns (1,2,3 for X,Y,Z)
axis corresponds to rows (1,2,3 for X,Y,Z)
axis corresponds to sections (1,2,3 for X,Y,Z)
0 image : signed 8-bit bytes range -128 to 127 1 image : 16-bit halfwords 2 image : 32-bit reals 3 transform : complex 16-bit integers 4 transform : complex 32-bit reals 6 image : unsigned 16-bit range 0 to 65535 16 image: unsigned char * 3 (for rgb data, non-standard)
Note: Mode 2 is the normal mode used in the CCP4 programs. This parser only supports modes 0 and 2
number of columns (fastest changing)
first column
number of rows
first row
number of sections (slowest changing)
first section
number of bytes used for storing symmetry operators
intervals along x
intervals along y
intervals along z
Skew matrix S (in order S11, S12, S13, S21 etc) if LSKFLG .ne. 0 May be used in CCP4 but not in MRC
Skew translation t if LSKFLG != 0 Skew transformation is from standard orthogonal coordinate frame (as used for atoms) to orthogonal map frame, as Xo(map) = S * (Xo(atoms) - t)
May be used in CCP4 but not in MRC
alpha cell angle (Degrees)
beta cell angle (Degrees)
gamma cell angle (Degrees)
x axis origin transformation (not used in CCP4)
y axis origin transformation (not used in CCP4)
z axis origin transformation (not used in CCP4)
x axis cell length (Angstroms in CCP4)
y axis cell length (Angstroms in CCP4)
z axis cell length (Angstroms in CCP4)
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Copyright (c) 2018 mol* contributors, licensed under MIT, See LICENSE file for more info.
Alexander Rose alexander.rose@weirdbyte.de
David Sehnal david.sehnal@gmail.com