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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 "@(#) stuff_disc.c 1.7 05/08/19 SwRI" #include "user_defs.h" #include "libtrec_idfs.h" /**************************************************************************** * * * IR_STUFF_BIN_DISCONTINUOUS SUBROUTINE * * * * DESCRIPTION * * This routine is called in order to stuff discontinuous data into a * * specified bin for data that is to be stuffed using a "banded" approach. * * The data is being transferred from the temporary data matrices into the * * buffer bins. The data value is multiplied by the fraction of bin * * covered by the sweep band. There is no need to check if the data is * * within the range of -180 to 180 since this has already been checked * * when putting the data into the temporary matrices. Unlike continuous * * data, the data is either existant or it's not; in other words, the bin * * is either empty or it contains data. There is no need to set the data * * value to a value that would signal that the bin was found but that the * * data was outside the limits. * * * * INPUT VARIABLES * * SDDAS_FLOAT *ret_data pointer to the data array for the buffer * * of interest * * reg SDDAS_FLOAT *ret_frac pointer to the normalization factors for * * the buffer of interest * * reg SDDAS_CHAR *ret_stat pointer to the bin status array for the * * buffer of interest * * SDDAS_LONG offset index into the data arrays * * register SDDAS_FLOAT FRAC percentage by which to multiply the data * * SDDAS_FLOAT data_val discontinuous data value to be processed * * SDDAS_FLOAT *buf_last pointer to the last data values for the * * buffer bins being processed * * SDDAS_CHAR *buf_cross pointer to the boundary crossing flags * * for the buffer bins being processed * * * * USAGE * * ir_stuff_bin_discontinuous (&ret_data, &ret_frac, &ret_stat, offset, * * FRAC, data_val, &buf_last, &buf_cross) * * * * NECESSARY SUBPROGRAMS * * ir_check_boundary () determines if a boundary was crossed * * between the last processed value and the * * new data value and corrects the new data * * value if necessary * * * * EXTERNAL VARIABLES * * None * * * * INTERNAL VARIABLES * * SDDAS_FLOAT new_val value to be added to buffer data array * * SDDAS_FLOAT comp_val comparison value (last value processed) * * SDDAS_CHAR *cptr pointer to the boundary crossing flag for * * the bin of interest * * * * SUBSYSTEM * * Display Level * * * ***************************************************************************/ void ir_stuff_bin_discontinuous (SDDAS_FLOAT *ret_data, register SDDAS_FLOAT *ret_frac, register SDDAS_CHAR *ret_stat, SDDAS_LONG offset, register SDDAS_FLOAT FRAC, SDDAS_FLOAT data_val, SDDAS_FLOAT *buf_last, SDDAS_CHAR *buf_cross) { SDDAS_FLOAT new_val, comp_val; SDDAS_CHAR *cptr; /*****************************************************************/ /* Check for boundary crossing. */ /*****************************************************************/ comp_val = *(buf_last + offset); cptr = buf_cross + offset; ir_check_boundary (cptr, &new_val, data_val, comp_val); /*****************************************************************/ /* First time storage into the bin in question? */ /*****************************************************************/ if (*(ret_stat + offset) == 0) { *(ret_data + offset) = new_val * FRAC; *(ret_stat + offset) = 1; *(ret_frac + offset) = FRAC; } else { *(ret_data + offset) += new_val * FRAC; *(ret_frac + offset) += FRAC; } /***************************************************************/ /* Save this value as the last value processed. */ /***************************************************************/ *(buf_last + offset) = data_val; }