cairoRelCurveTo         package:RGtk2         R Documentation(utf8)

_c_a_i_r_o_R_e_l_C_u_r_v_e_T_o

_D_e_s_c_r_i_p_t_i_o_n:

     Relative-coordinate version of 'cairoCurveTo'. All offsets are
     relative to the current point. Adds a cubic Bézier spline to the
     path from the current point to a point offset from the current
     point by ('dx3', 'dy3'), using points offset by ('dx1', 'dy1') and
     ('dx2', 'dy2') as the control points. After this call the current
     point will be offset by ('dx3', 'dy3').

_U_s_a_g_e:

     cairoRelCurveTo(cr, dx1, dy1, dx2, dy2, dx3, dy3)

_A_r_g_u_m_e_n_t_s:

    'cr': ['Cairo']  a cairo context

   'dx1': [numeric]  the X offset to the first control point

   'dy1': [numeric]  the Y offset to the first control point

   'dx2': [numeric]  the X offset to the second control point

   'dy2': [numeric]  the Y offset to the second control point

   'dx3': [numeric]  the X offset to the end of the curve

   'dy3': [numeric]  the Y offset to the end of the curve

_D_e_t_a_i_l_s:

     Given a current point of (x, y), cairo_rel_curve_to ('cr', 'dx1',
     'dy1', 'dx2', 'dy2', 'dx3', 'dy3') is logically equivalent to
     cairo_curve_to ('cr', x + 'dx1', y + 'dy1', x + 'dx2', y + 'dy2',
     x + 'dx3', y + 'dy3').

     It is an error to call this function with no current point. Doing
     so will cause 'cr' to shutdown with a status of
     CAIRO_STATUS_NO_CURRENT_POINT.

_A_u_t_h_o_r(_s):

     Derived by RGtkGen from GTK+ documentation

