Procedure

   spkcls_c ( SPK, Close file ) 

   void spkcls_c ( SpiceInt handle )

Abstract

   Close an open SPK file.

Required_Reading

   SPK

Keywords

   SPK

Brief_I/O

   VARIABLE  I/O  DESCRIPTION
   --------  ---  --------------------------------------------------
   handle     I   Handle of the SPK file to be closed.

Detailed_Input

   handle      is the handle of the SPK file that is to be closed.

Detailed_Output

   None.

Parameters

   None.

Exceptions

   1)  If there are no segments in the file, the error
       SPICE(NOSEGMENTSFOUND) is signaled by a routine in the call
       tree of this routine.

Files

   See argument handle.

Particulars

   Close the SPK file attached to `handle'. The close operation tests the
   file to ensure the presence of data segments.

   A spkcls_c call should balance each call to spkopn_c.

Examples

   The numerical results shown for this example may differ across
   platforms. The results depend on the SPICE kernels used as
   input, the compiler and supporting libraries, and the machine
   specific arithmetic implementation.

   1) This example demonstrates how to create an SPK type 8 kernel
      containing only one segment, given a time-ordered set of
      discrete states and epochs.


      Example code begins here.


      /.
         Program spkcls_ex1
      ./
      #include "SpiceUsr.h"

      int main( )
      {

         /.
         Define the segment identifier parameters.
         ./
         #define SPK8         "spkcls_ex1.bsp"
         #define REF          "J2000"
         #define BODY         3
         #define CENTER       10
         #define DEGREE       3
         #define NSTATS       9

         /.
         Local variables.
         ./
         SpiceChar          * ifname;
         SpiceChar          * segid;

         SpiceDouble          begtim;
         SpiceDouble          first;
         SpiceDouble          last;
         SpiceDouble          step;

         SpiceInt             handle;
         SpiceInt             ncomch;

         /.
         Set the array of discrete states to write to the SPK
         segment.
         ./
         SpiceDouble          states [NSTATS][6] = {
                            {101.0, 201.0, 301.0, 401.0, 501.0, 601.0},
                            {102.0, 202.0, 302.0, 402.0, 502.0, 602.0},
                            {103.0, 203.0, 303.0, 403.0, 503.0, 603.0},
                            {104.0, 204.0, 304.0, 404.0, 504.0, 604.0},
                            {105.0, 205.0, 305.0, 405.0, 505.0, 605.0},
                            {106.0, 206.0, 306.0, 406.0, 506.0, 606.0},
                            {107.0, 207.0, 307.0, 407.0, 507.0, 607.0},
                            {108.0, 208.0, 308.0, 408.0, 508.0, 608.0},
                            {109.0, 209.0, 309.0, 409.0, 509.0, 609.0} };

         /.
         Set the start and end times of interval covered by
         segment, and the time step separating epochs of states.
         ./
         first = 100.0;
         last  = 900.0;
         step  = 100.0;

         /.
         `ncomch' is the number of characters to reserve for the
         kernel's comment area. This example doesn't write
         comments, so set to zero.
         ./
         ncomch = 0;

         /.
         Internal file name and segment ID.
         ./
         ifname = "Type 8 SPK internal file name.";
         segid  = "SPK type 8 test segment";

         /.
         Open a new SPK file.
         ./
         spkopn_c ( SPK8, ifname, ncomch, &handle );

         /.
         Set the epoch of first state in `states' array to be
         the start time of the interval covered by the segment.
         ./
         begtim = first;

         /.
         Create a type 8 segment.
         ./
         spkw08_c ( handle, BODY,   CENTER, REF,    first,  last,
                    segid,  DEGREE, NSTATS, states, begtim, step );

         /.
         Close the SPK file.
         ./
         spkcls_c ( handle );

         return ( 0 );
      }


      When this program is executed, no output is presented on
      screen. After run completion, a new SPK type 8 exists in
      the output directory.

Restrictions

   None.

Literature_References

   None.

Author_and_Institution

   J. Diaz del Rio     (ODC Space)
   F.S. Turner         (JPL)

Version

   -CSPICE Version 1.0.1, 10-AUG-2021 (JDR)

       Edited the header to comply with NAIF standard. Added
       complete code example, based on the spkw08_c example.

       Updated -Particulars section. Re-ordered header sections.

   -CSPICE Version 1.0.0, 16-MAR-1999 (FST)

Index_Entries

   close an SPK file