#include "las.h"
int c_egroup (fdarray, gdesc, buffer, buffersz)
struct FDESC *fdarray[]; struct GDESC **gdesc; unsigned char *buffer; long *buffersz;
A null terminated array containing the individual file descriptors, created by calling c_eopens() each image file.
Pointer to the group descriptor pointer to be used internally by the image I/O subroutines and passed to the c_estep() routine.
Address of the memory area to be used by I/O for the group.
Note: This buffer must be allocated by using the c_ealloc(), otherwise the buffer will not be properly sized for compressed images.
Size of the memory area (buffer) in bytes.
The c_egroup() call is used to group several files into a single file group to be processed by c_estep()
c_egroup() returns
E_SUCC (0) --> success E_FAIL (-1) --> failure