Curvilinear Hips. The hip rafter of a French or other curvilinear roof may be laid out as shown in Fig. 96. The outline of the common rafter is shown by ac, its run being ab. The run, bd, of the hip should be drawn in such a position as to receive the projection lines 1', 2', 3', etc., which should be transferred to the base line, be, by a method similar to that indicated at bd. From these points 1", 2", 3", etc., erect lines to intersect with horizontal lines 1, 2, 3, etc., which will give the outline of the hip rafter.