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bodn2c_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 bodn2c_c ( ConstSpiceChar  * name,
                   SpiceInt        * code,
                   SpiceBoolean    * found )

Abstract

   Translate the name of a body or object to the corresponding SPICE
   integer ID code.

Required_Reading

   NAIF_IDS

Keywords

   BODY
   CONVERSION
   ID
   NAME


Brief_I/O

   Variable  I/O  Description
   --------  ---  --------------------------------------------------
   name       I   Body name to be translated into a SPICE ID code.
   code       O   SPICE integer ID code for the named body.
   found      O   SPICETRUE if translated, otherwise SPICEFALSE.

Detailed_Input

   name        is the name of a body or object, such as a planet,
               satellite, comet, asteroid, barycenter, DSN station,
               spacecraft, or instrument, that is "known" to the SPICE
               system, whether through hard-coded registration or
               run-time registration in the SPICE kernel pool.

               Case and leading and trailing blanks in `name'
               are not significant.  However when a name is made
               up of more than one word, they must be separated by
               at least one blank.  That is, all of the following
               strings are equivalent names:

                       "JUPITER BARYCENTER"
                       "Jupiter Barycenter"
                       "JUPITER BARYCENTER   "
                       "JUPITER    BARYCENTER"
                       "   JUPITER BARYCENTER"

               However, "JUPITERBARYCENTER" is not equivalent to
               the names above.

Detailed_Output

   code        is the SPICE or user-defined integer ID code for the
               named body.

   found       is SPICETRUE if `name' has a translation.  Otherwise,
               `found' is SPICEFALSE.

Parameters

   None.

Exceptions

   1) The error SPICE(EMPTYSTRING) is signaled if the input string
      `name' does not contain at least one character, since the input
      string cannot be converted to a Fortran-style string in this
      case.
      
   2) The error SPICE(NULLPOINTER) is signaled if the input string
      pointer `name' is null.

Files

   Body-name mappings may be defined at run time by loading text
   kernels containing kernel variable assignments of the form

      NAIF_BODY_NAME += ( <name 1>, ... )
      NAIF_BODY_CODE += ( <code 1>, ... )

   See NAIF_IDs for details.

Particulars

   bodn2c_c is one of four related subroutines,

      bodn2c_c      Body name to code
      bods2c_c      Body name or ID code string to integer code
      bodc2n_c      Body code to name
      boddef_c      Body name/code definition

   bodn2c_c and bodc2n_c perform translations between body names
   and their corresponding integer ID codes which are used
   in SPICE files and routines.  

   Programmers writing user interface code should consider using the
   CSPICE routine bods2c_c. bods2c_c provides more flexibility in
   handling input strings, since it accepts both body names and strings
   representing integer ID codes, for example "399".

   See NAIF_IDs for the list of name/code associations built into
   SPICE, and for details concerning adding new name/code associations
   at run time by loading text kernels.

Examples

   1)  In the following code fragment, bodvcd_c returns the radii
       of Jupiter.  bodvcd_c requires the SPICE integer ID code
       for Jupiter, so we use bodn2c_c to convert the name to its
       corresponding integer ID code.

 
          bodn2c_c ( "JUPITER", &jupid, &found );

          bodvcd_c ( jupid, "RADII", 3, &n, radii );


   2)  In this example, we assume that only the set of default 
       name/code pairs has been defined.

       Given these names, bodn2c_c will return the following codes:

          Name                         Code    Found?
          ------------------------   ------    ------
          "EARTH"                       399    Yes
          "  Earth "                    399    Yes
          "EMB"                           3    Yes
          "Solar System Barycenter"       0    Yes
          "SolarSystemBarycenter"         -    No
          "SSB"                           0    Yes
          "Voyager 2"                   -32    Yes
          "U.S.S. Enterprise"             -    No
          " "                             -    No
          "Halley's Comet"                -    No


       Given these codes, bodc2n_c will return the following names:

          Code        Name                        Found?
          -------     -------------------         ------
          399         "EARTH"                     Yes
            0         "SOLAR SYSTEM BARYCENTER"   Yes
            3         "EARTH BARYCENTER"          Yes
          -77         "GALILEO ORBITER"           Yes
           11          -                          No

Restrictions

   None.

Literature_References

   None.

Author_and_Institution

   C.H. Acton      (JPL)
   N.J. Bachman    (JPL)
   K.R. Gehringer  (JPL)
   B.V. Semenov    (JPL)

Version

   -CSPICE Version 2.1.5, 27-FEB-2008 (BVS)

       Corrected the contents of the Required_Reading section of 
       the header.

   -CSPICE Version 2.1.4, 31-JAN-2008 (NJB)

       References to the routine BODS2C were added to the header.

   -CSPICE Version 2.1.3, 27-OCT-2005 (NJB) 

       Header update:  replaced references to bodvar_c with 
       references to bodvcd_c.

   -CSPICE Version 2.1.2, 23-JUL-2004 (NJB) 

      Header correction:  Exceptions section was updated to document
      input string error handling.

   -CSPICE Version 2.1.1, 28-JUL-2003 (NJB) 

      Various header changes were made to improve clarity.  Some
      minor header corrections were made.

   -CSPICE Version 2.1.0, 02-SEP-1999 (NJB)  
   
      Local type logical variable now used for found flag used in
      interface of bodn2c_.
            
   -CSPICE Version 2.0.2, 25-MAR-1998 (EDW)
     
      Minor corrections to header.

   -CSPICE Version 2.0.1, 08-FEB-1998 (EDW)

       Corrected and clarified header entries.

   -CSPICE Version 2.0.0, 06-JAN-1998 (NJB)

       The type of the input argument name was changed to
       ConstSpiceChar *.

       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 (NJB)

      Based on SPICELIB Version 1.0.0, 23-JAN-1996 (KRG)

Index_Entries

   body name to code

Link to routine bodn2c_c source file bodn2c_c.c

Wed Apr 15 16:27:31 2009