/** * Constructs an axis-aligned quad with specified axis and corner points. * @param axis the axis orthogonal to the plane of this quad. * @param qa a corner point. * @param qb a corner point. */ public AxisAlignedQuad(Axis axis, Point3 qa, Point3 qb) { _frame = new AxisAlignedFrame(axis,qa,qb); addChild(_frame); }