rwCCP4.cpp File Reference

Functions for reading and writing CCP4 files. More...

#include "rwCCP4.h"
#include "UnitCell.h"
#include "file_util.h"
#include "utilities.h"
#include "rwsymop.h"

Functions
int	set_CCP4_machine_stamp (char *machine_stamp)
	Setting a CCP4 style machine stamp. More...
int	readCCP4 (Bimage *p, int readdata)
	Reading a CCP4 map image file format. More...
int	writeCCP4 (Bimage *p)
	Writing a CCP4 map image file format. More...

Variables
int	verbose

Detailed Description

Functions for reading and writing CCP4 files.

Author

Bernard Heymann

Date

Created: 19990410

Modified: 20120730

Function Documentation

readCCP4()

int readCCP4	(	Bimage *	p,
		int	readdata
	)

Reading a CCP4 map image file format.

Parameters

*p	the image structure.
readdata	flag to activate reading of image data.

Returns

int error code (<0 means failure). A 3D image format used in X-ray crystallography. Header size: 1024 bytes followed by the symmetry operator table which is composed of 80 character lines, each line for a symmetry operator. File format extensions: .map, .ccp, .ccp4 The identifier is a 4-byte machine stamp: 1 Big-endian IEEE 17 17 00 00 2 VAX 34 65 00 00 3 Cray - 4 Little-endian IEEE 68 65 00 00 5 Convex 85 17 00 00 6 Fijitsu VP - (Note: not always implemented - so unreliable) Byte order determination: Data type and third dimension values must be less than 256*256. Data types: 0 = signed char, 1 = short, 2 = float, 3 = complex short, 4 = complex float. Transform type: Centered hermitian The x-dimension contains the x-size of the full transform

set_CCP4_machine_stamp()

int set_CCP4_machine_stamp

(

char *

machine_stamp

)

Setting a CCP4 style machine stamp.

Parameters

*machine_stamp

machine stamp string.

Returns

int error code (<0 means failure). The 4-byte machine stamp: 1 Big-endian IEEE 17 17 00 00 2 VAX 34 65 00 00 3 Cray - 4 Little-endian IEEE 68 65 00 00 5 Convex 85 17 00 00 6 Fijitsu VP - (Note: not always implemented - so unreliable)

writeCCP4()

int writeCCP4

(

Bimage *

p

)

Writing a CCP4 map image file format.

Parameters

*p	the image structure.

Returns

int error code (<0 means failure). A 3D image format used in X-ray crystallography.

Variable Documentation

verbose

int verbose

extern