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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: trans_3d_binned.c 21638 2011-12-01 22:09:59Z carrie $ SwRI" #include #include "ret_codes.h" #include "gen_defs.h" #include "user_defs.h" #include "libtrec_idfs.h" /******************************************************************************* * * * IR_TRANSFER_TO_3D_BINNED SUBROUTINE * * * * DESCRIPTION * * This routine is called in order to combine those sensors that are defined* * to be mounted at the same theta angles, as defined in the VIDF file. For * * the duplicate theta bin definitions, the data is collected separately per * * sensor, and if there is the need to "re-bin" by theta range, it is done * * so by this routine. This routine will work on one of the units or data * * levels for the current data set/extension/version combo being processed. * * * * INPUT VARIABLES * * SDDAS_SHORT unit_index value specifying which data level is to be * * processed * * * * USAGE * * x = ir_transfer_to_3d_binned (unit_index) * * * * NECESSARY SUBPROGRAMS * * abs() returns the absolute value of a number * * sizeof () the size of the specified object in bytes * * malloc() allocates memory * * free () frees previously allocated memory * * * * EXTERNAL VARIABLES * * struct general_info structure that holds information concerning * * ginfo 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 accessed * * reg SDDAS_FLOAT *ret_ptr pointer to resultant data matrix * * reg SDDAS_FLOAT *f1 looping pointer variable * * reg SDDAS_FLOAT *stop_loop loop termination variable * * register SDDAS_SHORT theta looping variable over theta bins * * register SDDAS_SHORT *nptr pointer to normalization factors (binned) * * SDDAS_FLOAT *input_data pointer to input data matrix (separated) * * SDDAS_FLOAT *output_data pointer to output data matrix (binned) * * SDDAS_LONG off_theta_separate offset to get to the theta column being * * processed in the input data matrix * * SDDAS_LONG off_theta_binned offset to get to the theta column being * * processed in the resultant data matrix * * SDDAS_LONG off_unit_separate offset to get to the beginning of the data* * matrix for the data level being processed * * SDDAS_LONG off_unit_binned offset to get to beginning of the resultant * * matrix for the data level being processed * * SDDAS_LONG num_steps number of sweep bins * * SDDAS_LONG num_binned_elements number of elements to process in the * * binned theta matrix * * SDDAS_LONG num_separate_elements number of elements to process in the * * separated theta matrix * * SDDAS_SHORT num_theta_bins number of theta bins * * SDDAS_SHORT *num_values array of normalization factors * * size_t bytes the number of bytes to allocate * * void *tmp_ptr pointer which holds address passed back by * * the call to the MALLOC routine * * * * SUBSYSTEM * * Display Level * * * ******************************************************************************/ SDDAS_SHORT ir_transfer_to_3d_binned (SDDAS_SHORT unit_index) { extern struct general_info ginfo; struct experiment_info *ex; struct collapse_data *cptr; register SDDAS_FLOAT *dptr, *ret_ptr, *f1, *stop_loop; register SDDAS_SHORT theta, *nptr; SDDAS_FLOAT *input_data, *output_data; SDDAS_LONG off_theta_separate, off_theta_binned, off_unit_separate; SDDAS_LONG off_unit_binned, num_steps, num_binned_elements, num_separate_elements; SDDAS_SHORT num_theta_bins, *num_values; size_t bytes; void *tmp_ptr; /************************************************************************/ /* Initialize pointers to the beginning of the input and resultant */ /* data matrices. */ /************************************************************************/ ex = ginfo.expt; cptr = ex->collapse_ptr; num_steps = (SDDAS_LONG) ex->bin_ptr->num_bins; num_theta_bins = (SDDAS_SHORT) (abs (cptr->theta_bins)); num_binned_elements = num_steps * num_theta_bins; num_separate_elements = num_steps * ex->num_sensor; /***********************************************************************/ /* Allocate space to hold number of values added together in each bin */ /* for this data unit. */ /***********************************************************************/ bytes = num_binned_elements * sizeof (SDDAS_SHORT); if ((tmp_ptr = malloc (bytes)) == NO_MEMORY) return (TRANS_3D_BINNED_MALLOC); num_values = (SDDAS_SHORT *) tmp_ptr; /***********************************************************************/ /* Clear out the appropriate block of data associated with this data */ /* unit. */ /***********************************************************************/ off_unit_separate = unit_index * num_separate_elements; off_unit_binned = unit_index * num_binned_elements; nptr = num_values; dptr = cptr->data_3d_binned + off_unit_binned; stop_loop = dptr + num_binned_elements; /***********************************************************************/ /* Clear all the elements in the theta matrix for this data unit. */ /***********************************************************************/ for (; dptr < stop_loop; ++dptr, ++nptr) { *dptr = OUTSIDE_MIN; *nptr = 0; } /***********************************************************************/ /* Process a single unit, one sensor at a time, placing the data into */ /* the appropriate theta bin. */ /***********************************************************************/ input_data = cptr->data_3d_separate + off_unit_separate; output_data = cptr->data_3d_binned + off_unit_binned; off_theta_separate = 0; for (theta = 0; theta < ex->num_sensor; ++theta, off_theta_separate += num_steps) { off_theta_binned = *(cptr->sensor_bin + theta) * num_steps; dptr = input_data + off_theta_separate; stop_loop = dptr + num_steps; ret_ptr = output_data + off_theta_binned; nptr = num_values + off_theta_binned; /********************************************************************/ /* Copy the data from the separated bins to the theta bins defined.*/ /********************************************************************/ for (f1 = dptr; f1 < stop_loop; ++ret_ptr, ++f1, ++nptr) { if (*f1 < VALID_MIN) continue; if (*nptr == 0) { *ret_ptr = *f1; *nptr = 1; } else { *ret_ptr += *f1; *nptr += 1; } } } /***********************************************************************/ /* Normalize the binned data. */ /***********************************************************************/ nptr = num_values; dptr = output_data; stop_loop = dptr + num_binned_elements; for (; dptr < stop_loop; ++dptr, ++nptr) { if (*nptr != 0) *dptr = *dptr / *nptr; } free (tmp_ptr); return (ALL_OKAY); }