CL_LineSegment2x< Type >::CL_LineSegment2x(); CL_LineSegment2x< Type >::CL_LineSegment2x( const CL_LineSegment2x < Typet; t; & copy); CL_LineSegment2x< Type >::CL_LineSegment2x( const CL_Vec2 < Type > & point_p, const CL_Vec2 < Type > & point_q);