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include "od.h"
#---------------------------------------------------------------------------
.help od_get Feb93 source
.ih
NAME
od_get -- Retrieve data from file.
.ih
USAGE
.nf
call od_getd (od, data)
.fi
.ih
ARGUMENTS
.ls od (pointer :input)
The OD I/O descriptor.
.le
.ls data (double[ARB] :output)
The data from the OD file.
.le
.endhelp
#---------------------------------------------------------------------------
procedure od_get (od, data)
pointer od # I: The OD I/O descriptor.
double data[ARB] # O: The data.
pointer null # Null flag array for table IO.
# Functions
pointer imgl1d()
errchk gf_opengr, imgl1d, malloc, mfree, tbcgtd
begin
# Check if a file is actually opened. If not, do nothing.
if (od != NULL) {
# Get data depending on file type.
switch (OD_TYPE(od)) {
case OD_TABLE:
call malloc (null, OD_LEN(od), TY_BOOL)
call tbcgtd (OD_FD(od), OD_CD(od,OD_GRP(od)), data, Memb[null],
1, OD_LEN(od))
call mfree (null, TY_BOOL)
case OD_IMAGE:
# Retrieve the data.
call amovd (Memd[imgl1d(OD_FD(od))], data, OD_LEN(od))
}
}
end
#---------------------------------------------------------------------------
# End of od_get
#---------------------------------------------------------------------------
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