cairoPatternCreateRadial        package:RGtk2        R Documentation

_c_a_i_r_o_P_a_t_t_e_r_n_C_r_e_a_t_e_R_a_d_i_a_l

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

     Creates a new radial gradient 'CairoPattern' between the two
     circles defined by (cx0, cy0, radius0) and (cx1, cy1, radius1). 
     Before using the gradient pattern, a number of color stops should
     be defined using 'cairoPatternAddColorStopRgb' or
     'cairoPatternAddColorStopRgba'.

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

     cairoPatternCreateRadial(cx0, cy0, radius0, cx1, cy1, radius1)

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

   'cx0': [numeric]  x coordinate for the center of the start circle

   'cy0': [numeric]  y coordinate for the center of the start circle

'radius0': [numeric]  radius of the start circle

   'cx1': [numeric]  x coordinate for the center of the end circle

   'cy1': [numeric]  y coordinate for the center of the end circle

'radius1': [numeric]  radius of the end circle

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

     Note: The coordinates here are in pattern space. For a new
     pattern, pattern space is identical to user space, but the
     relationship between the spaces can be changed with
     'cairoPatternSetMatrix'.

_V_a_l_u_e:

     ['CairoPattern']  the newly created 'CairoPattern' if successful,
     or an error pattern in case of no memory.

     This function will always return a valid pointer, but if an error
     occurred the pattern status will be set to an error.  To inspect
     the status of a pattern use 'cairoPatternStatus'.

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

     Derived by RGtkGen from GTK+ documentation

