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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 "@(#) clear_theta.c 1.18 05/08/19 SwRI" #include "user_defs.h" #include "libtrec_idfs.h" /******************************************************************************* * * * IR_CLEAR_THETA_MATRIX SUBROUTINE * * * * DESCRIPTION * * This routine is called to clear out the whole 3D data matrix if there * * is to be no interleaving of data. All data levels or units are processed, * * with all bins in each theta column being reset to indicate that no data * * has been placed into the bins. The call is made prior to any processing * * of the current data to ensure that the resultant 3D matrix contains data * * for only those theta bins associated with the returned data. For the * * duplicate theta situation, the theta matrix that holds data separated by * * sensor is cleared. * * * * INPUT VARIABLES * * None * * * * USAGE * * ir_clear_theta_matrix () * * * * NECESSARY SUBPROGRAMS * * None * * * * EXTERNAL VARIABLES * * struct general_info ginfo structure that holds information concerning * * the experiment that is being processed * * * * INTERNAL VARIABLES * * struct experiment_info a pointer to the structure that holds * * *ex specific experiment information * * struct collapse_data pointer to the collapse_data structure * * *cptr being processed * * reg SDDAS_FLOAT *dptr pointer to data matrix being initialized * * reg SDDAS_FLOAT *stop_loop loop termination variable * * reg SDDAS_CHAR *bin_stat pointer to the bin status array * * * * SUBSYSTEM * * Display Level * * * ******************************************************************************/ void ir_clear_theta_matrix (void) { extern struct general_info ginfo; register struct experiment_info *ex; register struct collapse_data *cptr; register SDDAS_FLOAT *dptr, *stop_loop; register SDDAS_CHAR *bin_stat; /******************************************************************/ /* Process all units (data levels). */ /******************************************************************/ ex = ginfo.expt; cptr = ex->collapse_ptr; /***********************************************************************/ /* Is there a "duplicate theta" issue? If so, data / bin status is */ /* separated per sensor, not per theta bin. */ /***********************************************************************/ if (cptr->theta_bins < 0) { dptr = cptr->data_3d_separate; stop_loop = dptr + cptr->all_separate_theta_elements; } else { dptr = cptr->data_3d_binned; stop_loop = dptr + cptr->all_binned_theta_elements; } bin_stat = *(cptr->bin_stat_ptr + 0); /***************************************************************/ /* Clear all the elements in the theta matrix. */ /***************************************************************/ for (; dptr < stop_loop; ++dptr, ++bin_stat) { *dptr = OUTSIDE_MIN; *bin_stat = 0; } }