@ Pure public int getColumnFor ( double x ) { final double xx = x - this . bounds . getMinX ( ) ; if ( xx >= 0. ) { final int idx = ( int ) ( xx / getCellWidth ( ) ) ; assert idx >= 0 ; if ( idx < getColumnCount ( ) ) { return idx ; } return getColumnCount ( ) - 1 ; } return 0 ; }
Replies the column index for the specified position .