/* makebigf.c								*/

#undef TRACE
#undef DEBUG

#undef MAIN
#include "ransurf.h"
#include "local_proto.h"


void MakeBigF(void)
{
	int	R, C;
	double	Dist, RDist, CDist;

	FUNCTION(MakeBigF);
	for( R = 0; R < BigF.NumR; R++) {
	    BigF.LowBF[ R] = BigF.HihBF[ R] = -1;
	    RDist = (R - BigF.RowPlus) * NS;
	    RDist *= RDist;

	    for( C = 0; C < BigF.NumC; C++) {
		INT(R); INT(C);
		CDist = (C - BigF.ColPlus) * EW;
		CDist *= CDist;
		Dist = sqrt( CDist + RDist);

		if( Dist >= Filter.MaxDist) {
			BigF.F[ R][ C] = 0.0;
			if( BigF.HihBF[ R] == -1)
				BigF.LowBF[ R] = C;
		} else	{
			BigF.F[ R][ C] = DD( Dist);
			BigF.HihBF[ R] = C;
		}

		DOUBLE(BigF.F[R][C]);
		RETURN;
	    }

	    BigF.LowBF[ R] -= BigF.ColPlus;
	    BigF.HihBF[ R] -= BigF.ColPlus;
	}

	FUNCTION(end MakeBigF);
}