void ekopw_c ( ConstSpiceChar * fname,
SpiceInt * handle )
Open an existing E-kernel file for writing.
Variable I/O Description
-------- --- --------------------------------------------------
fname I Name of EK file.
handle O Handle attached to EK file.
fname is the name of an existing E-kernel file to be
opened for write access.
handle is the DAS file handle of the EK designate by
fname. This handle is used to identify the file
to other EK routines.
1) If the indicated file cannot be opened, the error will be
diagnosed by routines called by this routine. The new file
will be deleted.
2) If the indicated file has the wrong architecture version, the
error will be diagnosed by routines called by this routine.
3) If an I/O error occurs while reading or writing the indicated
file, the error will be diagnosed by routines called by this
See the EK Required Reading for a discussion of the EK file
This routine should be used to open an EK file for write access.
Opening an EK file with this routine makes the EK accessible to
the following CSPICE EK access routines, all of which modify
the target EK file:
Append, insert, delete records:
Add column entries:
Update existing column entries:
Execute fast write:
An EK opened for write access is also accessible for reading.
The file may be accessed by the CSPICE EK readers
and summary routines:
An EK opened for write access cannot be queried. To make an EK
available to the EK query system, the file must be loaded via
EKLEF, rather than by this routine. See the EK Required Reading
for further information.
1) Open the file MY.EK for write access:
ekopw_c ( "my.ek", &handle );
1) No more than FTSIZE DAS files may be opened simultaneously.
See dasfm_ for the value of FTSIZE.
N.J. Bachman (JPL)
-CSPICE Version 1.0.1, 09-JAN-2002 (NJB)
Documentation change: instances of the phrase "fast load"
were replaced with "fast write."
-CSPICE Version 1.0.0, 25-MAY-1999 (NJB)
open EK for writing