question: public ShapeTileSimplex ( PlaLineIntAlist p_line_alist ) { lines_list = new ArrayList < PlaLineInt > ( p_line_alist . size ( ) ) ; for ( PlaLineInt a_line : p_line_alist ) lines_list . add ( a_line ) ; Collections . sort ( lines_list ) ; }
target:  To be used when you know that the lines are surely OK Example, when creating a new object from a mirros or rotate operation