Index Page pdpool_c

A B C D E F G H I J K L M N O P Q R S T U V W X

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 pdpool_c ( ConstSpiceChar      * name,
                       SpiceInt              n,
                       ConstSpiceDouble    * dvals )

#### Abstract

       This entry point provides toolkit programmers a method for
       programmatically inserting double precision data into the
       kernel pool.

#### Required_Reading

       None.

#### Keywords

       POOL

#### Brief_I/O

       VARIABLE  I/O  DESCRIPTION
       --------  ---  --------------------------------------------------
       name       I   The kernel pool name to associate with dvals.
       n          I   The number of values to insert.
       dvals      I   An array of values to insert into the kernel pool.

#### Detailed_Input

       name       is the name of the kernel pool variable to associate
                  with the values supplied in the array dvals. 'name' is
                  restricted to a length of 32 characters or less.

       n          is the number of values to insert into the kernel pool.

       dvals      is an array of d.p. values to insert into the kernel
                  pool.

#### Detailed_Output

       None.

#### Parameters

       None.

#### Exceptions

       1) If name is already present in the kernel pool and there
          is sufficient room to hold all values supplied in dvals,
          the old values associated with name will be overwritten.

       2) If there is not sufficient room to insert a new variable
          into the kernel pool and name is not already present in
          the kernel pool, the error SPICE(KERNELPOOLFULL) is
          signaled by a routine in the call tree to this routine.

       3) If there is not sufficient room to insert the values associated
          with name, the error SPICE(NOMOREROOM) will be signaled.

       4) If the input string pointer name is null, the error
          SPICE(NULLPOINTER) will be signaled.

       5) If the input string name has length zero, the error
          SPICE(EMPTYSTRING) will be signaled.

       6) The error 'SPICE(BADVARNAME)' signals if the kernel pool
          variable name length exceeds 32.

#### Files

       None.

#### Particulars

       This entry point provides a programmatic interface for inserting
       data into the SPICE kernel pool without reading an external file.

#### Examples

       The following example program shows how a topocentric frame for a
       point on the surface of the earth may be defined at run time using
       pcpool_c, pdpool_c, and pipool_c.  In this example, the surface
       point is associated with the body code 300000.  To facilitate
       testing, the location of the surface point coincides with that of
       the DSN station DSS-12; the reference frame MYTOPO defined here
       coincides with the reference frame DSS-12_TOPO.

          #include <stdio.h>
          #include "SpiceUsr.h"

          int main()
          {
             /.
             The first angle is the negative of the longitude of the
             surface point; the second angle is the negative of the
             point's colatitude.
             ./
             SpiceDouble             angles [3]      =  { -243.1945102442646,
                                                           -54.7000629043147,
                                                           180.0              };

             SpiceDouble             et              =    0.0;
             SpiceDouble             rmat   [3][3];

             SpiceInt                axes   [3]      =  { 3, 2, 3 };
             SpiceInt                center          =    300000;
             SpiceInt                frclass         =    4;
             SpiceInt                frclsid         =    1500000;
             SpiceInt                frcode          =    1500000;

             /.
             Define the MYTOPO reference frame.

             Note that the third argument in the pcpool_c calls is
             the length of the final string argument, including the
             terminating null character.
             ./
             pipool_c ( "FRAME_MYTOPO",            1,     &frcode   );
             pcpool_c ( "FRAME_1500000_NAME",      1, 7,  "MYTOPO"  );
             pipool_c ( "FRAME_1500000_CLASS",     1,     &frclass  );
             pipool_c ( "FRAME_1500000_CLASS_ID",  1,     &frclsid  );
             pipool_c ( "FRAME_1500000_CENTER",    1,     &center   );

             pcpool_c ( "OBJECT_300000_FRAME",     1, 7,  "MYTOPO"  );

             pcpool_c ( "TKFRAME_MYTOPO_RELATIVE", 1, 7,  "ITRF93"  );
             pcpool_c ( "TKFRAME_MYTOPO_SPEC",     1, 7,  "ANGLES"  );
             pcpool_c ( "TKFRAME_MYTOPO_UNITS",    1, 8,  "DEGREES" );
             pipool_c ( "TKFRAME_MYTOPO_AXES",     3,     axes      );
             pdpool_c ( "TKFRAME_MYTOPO_ANGLES",   3,     angles    );

             /.
             Load a high precision binary earth PCK. Also load a
             topocentric frame kernel for DSN stations. The file names
             shown here are simply examples; users should replace these
             with the names of appropriate kernels.
             ./
             furnsh_c ( "earth_000101_060207_051116.bpc" );
             furnsh_c ( "earth_topo_050714.tf"           );

             /.
             Look up transformation from DSS-12_TOPO frame to MYTOPO frame.
             This transformation should differ by round-off error from
             the identity matrix.
             ./
             pxform_c ( "DSS-12_TOPO", "MYTOPO", et, rmat );

             printf   ( "\n"
                        "DSS-12_TOPO to MYTOPO transformation at "
                        "et %23.16e = \n"
                        "\n"
                        "    %25.16f  %25.16f  %25.16f\n"
                        "    %25.16f  %25.16f  %25.16f\n"
                        "    %25.16f  %25.16f  %25.16f\n",
                        et,
                        rmat[0][0],  rmat[0][1],  rmat[0][2],
                        rmat[1][0],  rmat[1][1],  rmat[1][2],
                        rmat[2][0],  rmat[2][1],  rmat[2][2]       );

             return ( 0 );
          }

#### Restrictions

       None.

#### Literature_References

       None.

#### Author_and_Institution

       N.J. Bachman    (JPL)
       W.L. Taber      (JPL)

#### Version

       -CSPICE Version 1.1.3,  17-JAN-2014 (NJB)

          Updated the Index_Entries section.

       -CSPICE Version 1.1.2,  10-FEB-2010 (EDW)

          Added mention of the restriction on kernel pool variable
          names to 32 characters or less.

          Reordered header sections to conform to SPICE convention.

       -CSPICE Version 1.1.1, 17-NOV-2005 (NJB)

          Replaced code fragment in Examples section of header with
          smaller, complete program.

       -CSPICE Version 1.1.0, 24-JUL-2001   (NJB)

           Changed prototype:  input dvals is now type (ConstSpiceDouble *).
           Implemented interface macro for casting input dvals to const.

       -CSPICE Version 1.0.0, 03-JUN-1999 (NJB) (WLT)

#### Index_Entries

       Set the value of a d.p._variable in the kernel_pool

#### Link to routine pdpool_c source file pdpool_c.c

    Wed Apr  5 17:54:40 2017