25     curve4_points(float x1, float y1,  in curve4_points()
31         cp[1] = y1;  in curve4_points()
39     void init(float x1, float y1,  in init()
45         cp[1] = y1;  in init()
68     curve4_div(float x1, float y1,  in curve4_div()  argument
74         init(x1, y1, x2, y2, x3, y3, x4, y4);  in curve4_div()
86     void init(float x1, float y1,
124     void bezier(float x1, float y1,
128     void recursive_bezier(float x1, float y1,
142     curve4(float x1, float y1,  in curve4()  argument
147         init(x1, y1, x2, y2, x3, y3, x4, y4);  in curve4()
157     void init(float x1, float y1,  in init()  argument
162         m_curve_div.init(x1, y1, x2, y2, x3, y3, x4, y4);  in init()