}
 for(i
 {



currentshadow[i][j] ;

&& currentshadow[i][j];


 }

=0; i<ROW; i++)

 for(j=0; j<COLUMN; j++)
 {
 if(n==0) previous_shadow[i][j] =

 else previous_shadow[i][j] = previous_shadow[i][j]

 }


 }
 //Count up the shadow points in previous_shadow matrix
 for(i=0; i<ROW; i++)
 {
 for(j=0; j<COLUMN; j++)
 {
 if(previous_shadow[i][j]==1)
 {
 shadow++
 shadowmatrix[i][j] = 1 ; //a global matrix
containing combined shadows


 else shadow = ROW*COLUMN;

 //Print out the final, combined shadow area
 //printf("Combined Shadow Area: %i\n", shadow);

 fclose(fpl);
// fclose(fp2);

 return shadow;


DATE Aug. 2002

//DATE: Aug. 20, 2002