rwMRC.h File Reference

Header file for reading and writing MRC files. More...

#include "rwimg.h"

Classes
struct	MRCheadold
struct	MRChead2000
struct	MRChead

Macros
#define	MRCSIZE   1024

Functions
int	readMRC (Bimage *p, int readdata, int img_select)
	Reading a MRC map image file format. More...
int	writeMRC (Bimage *p)
	Writing a MRC map image file format. More...

Detailed Description

Header file for reading and writing MRC files.

Author

Bernard Heymann

Date

Created: 19990321

Modified: 20111217

Format: 3D crystallographic image file format for the MRC package

Macro Definition Documentation

MRCSIZE

#define MRCSIZE   1024

Function Documentation

readMRC()

int readMRC	(	Bimage *	p,
		int	readdata,
		int	img_select
	)

Reading a MRC map image file format.

Parameters

*p	the image structure.
readdata	flag to activate reading of image data.
img_select	image selection in multi-image file (-1 = all images).

Returns

int error code (<0 means failure). A 3D image format used in electron microscopy. 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: .mrc The identifier is a 4-byte machine stamp (same as for CCP4 maps): 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 byte, 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

writeMRC()

int writeMRC

(

Bimage *

p

)

Writing a MRC map image file format.

Parameters

*p	the image structure.

Returns

int error code (<0 means failure). A 3D image format used in electron microscopy.