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SwRI can revise these Terms at any time * without notice by updating this posting. * * Trademarks * * The SwRI logo is a trademark of SwRI in the United States and other countries. * */ #ident "@(#) $Id: celestial_tbls.c 20511 2009-09-28 15:00:43Z carrie $ SwRI" #include #include "ret_codes.h" #include "gen_defs.h" #include "libbase_idfs.h" #include "libVIDF.h" /******************************************************************************* * * * IR_CELESTIAL_POSITION_TBL_INFO SUBROUTINE * * * * DESCRIPTION * * This routine is called to retrieve the table information for celestial * * position data values. This information is used to convert the celestial * * position data values into the correct units. In some cases, there may be * * no tables to apply; that is, the data may have been stored in "processed" * * units already. * * * * INPUT VARIABLES * * SDDAS_SHORT btime_yr the start time requested (year component) * * SDDAS_SHORT btime_day the start time requested (day component) * * SDDAS_LONG btime_sec the start time requested (seconds component)* * SDDAS_LONG btime_nsec the start time requested (nanoseconds) * * SDDAS_SHORT etime_yr the stop time requested (year component) * * SDDAS_SHORT etime_day the stop time requested (day component) * * SDDAS_LONG etime_sec the stop time requested (seconds component) * * SDDAS_LONG etime_nsec the stop time requested (nanoseconds) * * * * USAGE * * x = ir_celestial_position_tbl_info (btime_yr, btime_day, btime_sec, * * btime_nsec, etime_yr, etime_day, etime_sec, * * etime_nsec) * * * * NECESSARY SUBPROGRAMS * * sizeof () the size of the specified object in bytes * * malloc() allocates memory * * ReadVIDF() reads information from the VIDF file * * ir_get_cinfo_rval () returns an error code unique to this module * * for each possible ReadVIDF() error code * * * * EXTERNAL VARIABLES * * struct general_info ginfo structure that holds information concerning * * the experiment that is being processed * * * * INTERNAL VARIABLES * * struct experiment_info *ex a pointer to the structure that holds * * specific experiment information * * register struct celestial_info a ptr to the structure that holds * * *cp_ptr celestial position information * * register SDDAS_SHORT i looping variable * * size_t bytes the number of bytes to allocate * * size_t num_bytes_slong the number of bytes needed for a SDDAS_LONG * * size_t num_bytes_schar the number of bytes needed for a SDDAS_CHAR * * SDDAS_ULONG data_key key which uniquely identifies the data set * * being processed * * SDDAS_LONG offset index into allocated memory * * SDDAS_LONG start_at_zero param. passed to ReadVIDF to avoid casting * * SDDAS_LONG larr[] temporary variable to read from VIDF * * SDDAS_SHORT temp_var temporary variable * * SDDAS_SHORT total_tbls number of tables defined in VIDF * * SDDAS_SHORT sarr[] temporary variable to read from VIDF * * int ret_val holds value returned by called module * * void *tmp_ptr pointer which holds address passed back by * * the call to the MALLOC routine * * * * SUBSYSTEM * * Display Level * * * ******************************************************************************/ SDDAS_SHORT ir_celestial_position_tbl_info (SDDAS_SHORT btime_yr, SDDAS_SHORT btime_day, SDDAS_LONG btime_sec, SDDAS_LONG btime_nsec, SDDAS_SHORT etime_yr, SDDAS_SHORT etime_day, SDDAS_LONG etime_sec, SDDAS_LONG etime_nsec) { extern struct general_info ginfo; struct experiment_info *ex; register struct celestial_info *cp_ptr; register SDDAS_SHORT i; size_t bytes; SDDAS_ULONG data_key; SDDAS_LONG offset, start_at_zero, larr[500]; SDDAS_SHORT temp_var, total_tbls, sarr[500]; /* Leave variables as is, no typedefs */ int ret_val; void *tmp_ptr; /*************************************************************************/ /* Retrieve the table information for celestial position data values. */ /* Allocate the space since the number of tables varies. */ /*************************************************************************/ ex = ginfo.expt; data_key = ex->data_key; cp_ptr = ex->celestial_position; start_at_zero = 0; total_tbls = 0; ret_val = ReadVIDF (data_key, btime_yr, btime_day, btime_sec, btime_nsec, etime_yr, etime_day, etime_sec, etime_nsec, (SDDAS_CHAR *) &temp_var, _CP_DECLINATION_APPS, 0, start_at_zero, 1); if (ret_val < 0) return (ir_get_cinfo_rval (ret_val)); cp_ptr->num_tbls[DECLINATION_INDEX] = (SDDAS_CHAR) temp_var; total_tbls += temp_var; ret_val = ReadVIDF (data_key, btime_yr, btime_day, btime_sec, btime_nsec, etime_yr, etime_day, etime_sec, etime_nsec, (SDDAS_CHAR *) &temp_var, _CP_RT_ASCENSION_APPS, 0, start_at_zero, 1); if (ret_val < 0) return (ir_get_cinfo_rval (ret_val)); cp_ptr->num_tbls[RT_ASCENSION_INDEX] = (SDDAS_CHAR) temp_var; total_tbls += temp_var; /*************************************************************************/ /* Make sure there are tables to be applied to convert the celestial */ /* position data into units, in case data is not stored "raw". */ /*************************************************************************/ if (total_tbls > 0) { size_t num_bytes_slong, num_bytes_schar; num_bytes_schar = sizeof (SDDAS_CHAR); num_bytes_slong = sizeof (SDDAS_LONG); bytes = (num_bytes_slong + num_bytes_schar) * total_tbls; if ((tmp_ptr = malloc (bytes)) == NO_MEMORY) return (CP_TBL_MALLOC); cp_ptr->base_tbls = tmp_ptr; cp_ptr->tbl_oper = (SDDAS_LONG *) cp_ptr->base_tbls; /* Cast base_tbls to char * since void * and offset is in bytes. */ offset = total_tbls * num_bytes_slong; cp_ptr->tbl_apply = (SDDAS_CHAR *) ((SDDAS_CHAR *) cp_ptr->base_tbls + offset); /**********************************************************************/ /* Get Declination Angle Information. */ /**********************************************************************/ offset = 0; if (cp_ptr->num_tbls[DECLINATION_INDEX] > 0) { /**********************************************************************/ /* The IDFS software says tables to apply are chars BUT vidf defines */ /* CP_TBLS as shorts. Read into temporary variable and copy values */ /* into tbl_apply to save as chars. */ /**********************************************************************/ ret_val = ReadVIDF (data_key, btime_yr, btime_day, btime_sec, btime_nsec, etime_yr, etime_day, etime_sec, etime_nsec, (SDDAS_CHAR *) sarr, _CP_DECLINATION_TBLS, 0, start_at_zero, -1); if (ret_val < 0) return (ir_get_cinfo_rval (ret_val)); for (i = 0; i < cp_ptr->num_tbls[DECLINATION_INDEX]; ++i) *(cp_ptr->tbl_apply + offset + i) = (SDDAS_CHAR) sarr[i]; ret_val = ReadVIDF (data_key, btime_yr, btime_day, btime_sec, btime_nsec, etime_yr, etime_day, etime_sec, etime_nsec, (SDDAS_CHAR *) larr, _CP_DECLINATION_OPS, 0, start_at_zero, -1); if (ret_val < 0) return (ir_get_cinfo_rval (ret_val)); for (i = 0; i < cp_ptr->num_tbls[DECLINATION_INDEX]; ++i) *(cp_ptr->tbl_oper + offset + i) = larr[i]; offset += cp_ptr->num_tbls[DECLINATION_INDEX]; } /**********************************************************************/ /* Get Right Ascension Angle Information. */ /**********************************************************************/ if (cp_ptr->num_tbls[RT_ASCENSION_INDEX] > 0) { /**********************************************************************/ /* The IDFS software says tables to apply are chars BUT vidf defines */ /* CP_TBLS as shorts. Read into temporary variable and copy values */ /* into tbl_apply to save as chars. */ /**********************************************************************/ ret_val = ReadVIDF (data_key, btime_yr, btime_day, btime_sec, btime_nsec, etime_yr, etime_day, etime_sec, etime_nsec, (SDDAS_CHAR *) sarr, _CP_RT_ASCENSION_TBLS, 0, start_at_zero, -1); if (ret_val < 0) return (ir_get_cinfo_rval (ret_val)); for (i = 0; i < cp_ptr->num_tbls[RT_ASCENSION_INDEX]; ++i) *(cp_ptr->tbl_apply + offset + i) = (SDDAS_CHAR) sarr[i]; ret_val = ReadVIDF (data_key, btime_yr, btime_day, btime_sec, btime_nsec, etime_yr, etime_day, etime_sec, etime_nsec, (SDDAS_CHAR *) larr, _CP_RT_ASCENSION_OPS, 0, start_at_zero, -1); if (ret_val < 0) return (ir_get_cinfo_rval (ret_val)); for (i = 0; i < cp_ptr->num_tbls[RT_ASCENSION_INDEX]; ++i) *(cp_ptr->tbl_oper + offset + i) = larr[i]; } } return (ALL_OKAY); }