question: private static double [ ] initBoundingBox ( double numberOfRows , double numberOfColumns ) { double [ ] box = new double [ 4 ] ; box [ 0 ] = 0 ; box [ 1 ] = 0 ; box [ 2 ] = numberOfColumns - 1 ; box [ 3 ] = numberOfRows - 1 ; logger . info ( "Using bounding box with xmin=" + box [ 0 ] + ", ymin=" + box [ 1 ] + ", xmax=" + box [ 2 ] + ", ymax=" + box [ 3 ] ) ; return box ; }
target:  creates a bounding box for initializing the SpatialGrid