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cklpf_c
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Procedure
Abstract
Required_Reading
Keywords
Brief_I/O
Detailed_Input
Detailed_Output
Parameters
Exceptions
Files
Particulars
Examples
Restrictions
Literature_References
Author_and_Institution
Version
Index_Entries

Procedure

   void cklpf_c ( ConstSpiceChar * filename,
                  SpiceInt       * handle    )

Abstract

 
   Load a CK pointing file for use by the CK readers.  Return that 
   file's handle, to be used by other CK routines to refer to the 
   file. 
 

Required_Reading

 
   CK 
   DAF 
 

Keywords

 
   POINTING 
 

Brief_I/O

 
   Variable  I/O  Description 
   --------  ---  -------------------------------------------------- 
   filename   I   Name of the CK file to be loaded. 
   handle     O   Loaded file's handle. 
 

Detailed_Input

 
   filename   is the name of a C-kernel file to be loaded. 
 

Detailed_Output

 
   handle     is an integer handle assigned to the file upon loading. 
              Almost every other CK routine will subsequently use 
              this number to refer to the file. 
 

Parameters

 
   ftsize     is the maximum number of pointing files that can 
              be loaded by CKLPF at any given time for use by the 
              readers. 
 

Exceptions

 
   1) If an attempt is made to load more files than is specified 
      by the parameter ftsize, the error "SPICE(CKTOOMANYFILES)" 
      is signalled. 
 
   2) If an attempt is made to open more DAF files than is specified 
      by the parameter ftsize in DAFAH, an error is signalled by a 
      routine that this routine calls. 
 
   3) If the file specified by filename can not be opened, an error 
      is signalled by a routine that this routine calls. 
 
   4) If the file specified by filename has already been loaded, 
      it will become the "last-loaded" file.  (The readers 
      search the last-loaded file first.) 
 

Files

 
   The C-kernel file specified by filename is loaded.  The file is 
   assigned an integer handle by CKLPF.  Other CK routines will refer 
   to this file by its handle. 
 

Particulars

 
   See Particulars in ckbsr. 
 
   If there is room for a new file, CKLPF opens the file for 
   reading.  This routine must be called prior to a call to CKGP or 
   CKGPAV. 
 
   CK readers search files loaded with CKLPF in the reverse order 
   in which they were loaded.  That is, last-loaded files are 
   searched first. 
 

Examples

   ck_kern  = "/kernels/mpf/ck/lander_nominal.bck";
   cklpf_c ( ck_kern, &hand );

   Also see the Example in ckbsr.for. 
 

Restrictions

 
   None. 
 

Literature_References

 
   None. 
 

Author_and_Institution

   J.M. Lynch     (JPL) 
   J.E. McLean    (JPL) 
   M.J. Spencer   (JPL) 
   R.E. Thurman   (JPL) 
   I.M. Underwood (JPL) 
   E.D. Wright    (JPL) 
   B.V. Semenov   (JPL)
   

Version

 
   -CSPICE Version 2.0.1, 31-JAN-2008 (BVS)

       Removed '-Revisions' from the header.

   -CSPICE Version 2.0.0, 08-FEB-1998 (NJB)  
   
       Input argument filename changed to type ConstSpiceChar *;
       name was changed to "filename" from "fname."
   
       References to C2F_CreateStr_Sig were removed; code was
       cleaned up accordingly.  String checks are now done using
       the macro CHKFSTR.
       
   -CSPICE Version 1.0.0, 25-OCT-1997 (EDW)

Index_Entries

 
   load ck pointing file 
 
Wed Apr  5 17:54:29 2017