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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 "@(#) adj_spin_ele_dval.c 1.1 05/08/19 SwRI" #include "user_defs.h" #include "libtrec_idfs.h" /******************************************************************************* * * * IR_ADJUST_SPIN_ELEMENT_DATA_VAL SUBROUTINE * * * * DESCRIPTION * * This routine will adjust the data values for the element specified by * * the fractional value passed in. The way this module is called will end up * * adjusting the starting element in the first sweep of the spin and the last * * element in the last sweep of the spin. * * * * INPUT VARIABLES * * SDDAS_SHORT index index to point to the correct SPTR structure * * SDDAS_LONG offset offset into the data array (starting element * * or last element of the sweep for the spin) * * SDDAS_FLOAT ele_frac the percentage of the spin period covered * * by element flagged * * * * USAGE * * ir_adjust_spin_element_data_val (index, offset, ele_frac) * * * * NECESSARY SUBPROGRAMS * * None * * * * EXTERNAL VARIABLES * * struct general_info ginfo structure that holds information concerning * * the experiment that is being processed * * SDDAS_FLOAT *ir_units_data buffer space used to hold the values from the * * call to convert_to_units for each data level * * requested (used so only 1 call is needed per * * data value) * * * * INTERNAL VARIABLES * * struct experiment_info a pointer to the structure that holds * * *ex specific experiment information * * struct fill_data *fptr pointer to the fill_data structure being * * processed * * struct fill_sensor *sptr pointer to the fill_sensor structure being * * processed * * register SDDAS_SHORT i looping varible * * SDDAS_FLOAT *tmp_buf pointer to converted data level sub-buffers * * SDDAS_LONG unit_offset offset into data for unit being processed * * * * SUBSYSTEM * * Display Level * * * ******************************************************************************/ void ir_adjust_spin_element_data_val (SDDAS_SHORT index, SDDAS_LONG offset, SDDAS_FLOAT ele_frac) { extern struct general_info ginfo; extern SDDAS_FLOAT *ir_units_data; struct experiment_info *ex; struct fill_data *fptr; struct fill_sensor *sptr; register SDDAS_SHORT i; SDDAS_FLOAT *tmp_buf; SDDAS_LONG unit_offset; /**********************************************************************/ /* Set a pointer to the correct fill_data structure. */ /**********************************************************************/ ex = ginfo.expt; fptr = ex->fill_arrays; /**********************************************************************/ /* Index into ir_units_data by swp_len since this holds the no. of */ /* elements returned by READ_DREC(), which may be more than num_bins.*/ /**********************************************************************/ unit_offset = 0; sptr = ex->fill_sen_ptr + *(fptr->ind_fill_sen + index); for (i = 0; i < sptr->num_units; ++i, unit_offset += ex->swp_len) { /********************************************************************/ /* Modify the data value for the specified element according to the*/ /* fraction value returned by read_drec_spin(). */ /********************************************************************/ tmp_buf = ir_units_data + unit_offset + offset; *tmp_buf *= ele_frac; } }