2 ***********************************************************
3 $SNARK_Header: S N A R K 1 4 - A PICTURE RECONSTRUCTION PROGRAM $
4 $HeadURL: svn://dig.cs.gc.cuny.edu/snark/trunk/src/snark/bckray.cpp $
5 $LastChangedRevision: 85 $
6 $Date: 2014-07-02 16:07:08 -0400 (Wed, 02 Jul 2014) $
8 ***********************************************************
14 /// this function is never used !!!
16 void bckray(REAL* pict, REAL amt, INTEGER* list, REAL* weight, INTEGER numb,
23 // UPDATE THE RECONSTRUCTION PICT BY ADJUSTING THE DESIRED RAY
29 for (nb = 0; nb < numb; nb++)
32 pictk = pict[k] + amt * weight[nb];
36 pictk = MAX0(pictk, Modefl.lower);
38 pictk = MIN0(pictk, Modefl.upper);