def cortex_rgba_plot_2D(the_map, rgba, axes=None, triangulation=None):
cmap = colors_to_cmap(rgba)<EOL>zs = np.linspace(<NUM_LIT:0.0>, <NUM_LIT:1.0>, the_map.vertex_count)<EOL>return cortex_cmap_plot_2D(the_map, zs, cmap, axes=axes, triangulation=triangulation)<EOL>
cortex_rgba_plot_2D(map, rgba, axes) plots the given cortical map on the given axes using the
  given (n x 4) matrix of vertex colors and yields the resulting polygon collection object.
cortex_rgba_plot_2D(map, rgba) uses matplotlib.pyplot.gca() for the axes.

The option triangulation may also be passed if the triangularion object has already been
created; otherwise it is generated fresh.