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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 "@(#) time_values.c 1.24 05/08/19 SwRI" #include #include "libtrec_idfs.h" #include "ret_codes.h" /******************************************************************************* * * * SET_TIME_VALUES SUBROUTINE * * * * DESCRIPTION * * This routine is called in order to set the base reference time and pixel * * location upon start up of the software. This routine is only called once * * to initialize the system for the FILL routines. In addition to the base * * time, the time per pixel value is also passed to this routine and is saved * * for later calculations. With the scheme used, given a time reference and * * a base pixel location that is associated with the time reference, the * * pixel location of any time sample can be determined. * * * * INPUT VARIABLES * * SDDAS_USHORT vnum version number to be associated with this * * combination (allows for multiple opens) * * SDDAS_SHORT base_year the base year time component * * SDDAS_SHORT base_day the base day time component * * SDDAS_LONG base_sec the base seconds time component * * SDDAS_LONG base_nano the base nanoseconds time component * * SDDAS_LONG base_pix the pixel location associated with the base * * time * * SDDAS_LONG res_sec the time per pixel seconds component * * SDDAS_LONG res_nano the time per pixel nanoseconds component * * * * USAGE * * set_time_values (vnum, base_year, base_day, base_sec, base_nano, * * base_pix, res_sec, res_nano) * * * * NECESSARY SUBPROGRAMS * * ir_locate_ex() determines if the requested combination has * * already been processed and points to the * * correct structure allocated for the combo * * ir_set_timing_structure () saves the timing information in the correct * * structures * * * * EXTERNAL VARIABLES * * struct general_info ginfo structure that holds information concerning * * the experiment that is being processed * * * * INTERNAL VARIABLES * * reg struct experiment_info a pointer to the structure that holds * * *ex specific experiment information * * reg SDDAS_SHORT num_ex number of experiment_info structures * * SDDAS_FLOAT pix_width pixel width in time - compute once * * SDDAS_ULONG data_key key which uniquely identifies the data set * * being processed * * SDDAS_USHORT mode_vnum version number for mode data associated * * with this combination * * SDDAS_SHORT ret_val holds return value for called module * * SDDAS_CHAR exten[] filename extension for the data to be used * * * * SUBSYSTEM * * Display Level * * * ******************************************************************************/ void set_time_values (SDDAS_USHORT vnum, SDDAS_SHORT base_year, SDDAS_SHORT base_day, SDDAS_LONG base_sec, SDDAS_LONG base_nano, SDDAS_LONG base_pix, SDDAS_LONG res_sec, SDDAS_LONG res_nano) { extern struct general_info ginfo; register struct experiment_info *ex; register SDDAS_SHORT num_ex; SDDAS_FLOAT pix_width; SDDAS_ULONG data_key; SDDAS_USHORT mode_vnum; SDDAS_SHORT ret_val; SDDAS_CHAR exten[3]; /**********************************************************************/ /* Initialize all timing structures using the base time information. */ /**********************************************************************/ pix_width = res_sec + 0.000000001 * res_nano; for (num_ex = 0; num_ex < ginfo.nds; ++num_ex) { ex = ginfo.exbase + num_ex; data_key = ex->data_key; mode_vnum = ex->mode_version; strcpy (exten, ex->exten); /**********************************************************************/ /* Set the base time and pixel location values and save the time per */ /* pixel resolution values for matching version numbers. */ /**********************************************************************/ if (ex->version == vnum && ex->data_key != 0) { ex->time_values.base_year = base_year; ex->time_values.base_day = base_day; ex->time_values.base_sec = base_sec; ex->time_values.base_nano = base_nano; ex->time_values.base_pix = base_pix; ex->time_values.res_sec = res_sec; ex->time_values.res_nano = res_nano; ex->time_values.pix_width = pix_width; ir_set_timing_structure (ex, base_year, base_day, base_sec, base_nano, base_pix, res_sec, res_nano); /****************************************************************/ /* Set the ex structure allocated for mode data if one exists. */ /****************************************************************/ if (ex->mode_version != ex->version) { ret_val = ir_locate_ex (data_key, exten, mode_vnum, 0); /* shouldn't have to check but gets rid of compiler warning */ if (ret_val == ALL_OKAY) { ex = ginfo.expt; ex->time_values.base_year = base_year; ex->time_values.base_day = base_day; ex->time_values.base_sec = base_sec; ex->time_values.base_nano = base_nano; ex->time_values.base_pix = base_pix; ex->time_values.res_sec = res_sec; ex->time_values.res_nano = res_nano; ex->time_values.pix_width = pix_width; ir_set_timing_structure (ex, base_year, base_day, base_sec, base_nano, base_pix, res_sec, res_nano); } } } } }