pckcls_c |
Table of contents
Procedurepckcls_c ( PCK, close file ) void pckcls_c ( SpiceInt handle ) AbstractClose an open PCK file. Required_ReadingPCK KeywordsPCK Brief_I/OVARIABLE I/O DESCRIPTION -------- --- -------------------------------------------------- handle I Handle of the PCK file to be closed. Detailed_Inputhandle is the handle of the PCK file that is to be closed. Detailed_OutputNone. ParametersNone. Exceptions1) If there are no segments in the file, the error SPICE(NOSEGMENTSFOUND) is signaled by a routine in the call tree of this routine. FilesSee argument `handle'. ParticularsNone. ExamplesThe 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) Suppose that you have sets of Chebyshev polynomial coefficients in an array pertaining to the orientation of the Moon body-fixed frame with the frame class ID 301 relative to the J2000 reference frame, and want to put these into a type 2 segment PCK file. The following example could be used to add one new type 2 segment. To add multiple segments, put the call to pckw02_c in a loop. Example code begins here. /. Program pckcls_ex1 ./ #include "SpiceUsr.h" int main( ) { /. Local parameters ./ #define FNAME "pckcls_ex1.bpc" #define BODY 301 #define POLYDG 9 #define SZCDAT 60 /. Local variables ./ SpiceChar * ifname; SpiceChar * segid; SpiceDouble btime; SpiceDouble first; SpiceDouble intlen; SpiceDouble last; SpiceInt handle; SpiceInt n; SpiceInt nresvc; /. Set the input data: RA/DEC/W coefficients, begin time for the first record, start/end times for the segment, length of the time covered by each record, and number of logical records. `cdata' contains the ra/dec/w coefficients: first the the polydeg + 1 for the RA first record, then the polydeg + 1 for the DEC first record, then the polydeg +1 for W first record, then the polydeg + 1 for the RA second record, and so on. ./ SpiceDouble cdata [SZCDAT] = { -5.4242086033301107e-002, -5.2241405162792561e-005, 8.9751456289930307e-005, -1.5288696963234620e-005, 1.3218870864581395e-006, 5.9822156790328180e-007, -6.5967702052551211e-008, -9.9084309118396298e-009, 4.9276055963541578e-010, 1.1612267413829385e-010, 0.42498898565916610, 1.3999219324235620e-004, -1.8855140511098865e-005, -2.1964684808526649e-006, 1.4229817868138752e-006, -1.6991716166847001e-007, -3.4824688140649506e-008, 2.9208428745895990e-009, 4.4217757657060300e-010, -3.9211207055305402e-012, 2565.0633504619473, 0.92003769451305328, -8.0503797901914501e-005, 1.1960860244433900e-005, -1.2237900518372542e-006, -5.3651349407824562e-007, 6.0843372260403005e-008, 9.0211287487688797e-009, -4.6460429330339309e-010, -1.0446918704281774e-010, -5.3839796353225056e-002, 4.3378021974424991e-004, 4.8130091384819459e-005, -1.2283066272873327e-005, -5.4099296265403208e-006, -4.4237368347319652e-007, 1.3004982445546169e-007, 1.9017128275284284e-008, -7.0368223839477803e-011, -1.7119414526133175e-010, 0.42507987850614548, -7.1844899448557937e-005, -5.1052122872412865e-005, -8.9810401387721321e-006, -1.4611718567948972e-007, 4.0883847771062547e-007, 4.6812854485029333e-008, -4.5698075960784951e-009, -9.8679875320349531e-010, -7.9392503778178240e-011, 2566.9029069934054, 0.91952244801740568, -6.0426151041179828e-005, 1.0850559330577959e-005, 5.1756033678137497e-006, 4.2127585555214782e-007, -1.1774737441872970e-007, -1.7397191490163833e-008, 5.8908810244396165e-012, 1.4594279337955166e-010 }; first = -43200.0; last = 1339200.0; btime = first; intlen = 691200.0; n = 2; /. Open a new PCK file. For simplicity, we will not reserve any space for the comment area, so the number of reserved comment characters is zero. The variable `ifname' is the internal file name. ./ nresvc = 0; ifname = "Test PCK/Created 04-SEP-2019"; pckopn_c ( FNAME, ifname, nresvc, &handle ); /. Create a segment identifier. ./ segid = "MY_SAMPLE_PCK_TYPE_2_SEGMENT"; /. Write the segment. ./ pckw02_c ( handle, BODY, "J2000", first, last, segid, intlen, n, POLYDG, cdata, btime ); /. Close the file. ./ pckcls_c ( handle ); return ( 0 ); } When this program is executed, no output is presented on screen. After run completion, a new PCK type 2 exists in the output directory. RestrictionsNone. Literature_ReferencesNone. Author_and_InstitutionN.J. Bachman (JPL) J. Diaz del Rio (ODC Space) K.R. Gehringer (JPL) Version-CSPICE Version 1.0.1, 04-AUG-2021 (JDR) Edited the header to comply with NAIF standard. Added complete code examples based on existing fragment. -CSPICE Version 1.0.0, 16-DEC-2016 (NJB) (KRG) Index_Entriesclose a PCK file |
Fri Dec 31 18:41:10 2021