rwSPIDER.h File Reference

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

#include "rwimg.h"

Classes
struct	SPIDERhead

Macros
#define	SPIDERSIZE   1024

Functions
int	readSPIDER (Bimage *p, int readdata, int img_select)
	Reading a SPIDER image file format. More...
int	writeSPIDER (Bimage *p)
	Writing a SPIDER image file format. A 3D image format used in electron microscopy. More...

Detailed Description

Header file for reading and writing SPIDER files.

Author

Bernard Heymann

Date

Created: 19990410

Modified: 20010928

Format: 3D image file format for the SPIDER package

Macro Definition Documentation

SPIDERSIZE

#define SPIDERSIZE   1024

Function Documentation

readSPIDER()

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

Reading a SPIDER 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 multi-image format used in electron microscopy. Header size: 1024 bytes (not same as data offset!). Data offset: sizeof(float)*x_size*ceil(1024/x_size) File format extensions: .spi 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: File type and third dimension values must be less than 256*256. Data type: only float. Transform type: Hermitian The x-dimension contains the x-size of the full transform A multi-image file has a global header followed by a header and data for each sub-image.

writeSPIDER()

int writeSPIDER

(

Bimage *

p

)

Writing a SPIDER image file format. A 3D image format used in electron microscopy.

Parameters

*p	the image structure.

Returns

int error code (<0 means failure).