=head1 METHODS
-This method is required by the interface :
+These methods are required by the interface :
=over 4
Returns the TikZ code that builds a path out of the current set object as a string formatted by the L<LaTeX::TikZ::Formatter> object C<$formatter>.
+=item *
+
+C<begin>
+
+Returns a L<LaTeX::TikZ::Point> object pointing to the beginning of the path, or C<undef> if this path has no beginning.
+
+=item *
+
+C<end>
+
+A L<LaTeX::TikZ::Point> object pointing to the end of the path, or C<undef> if this path has no end.
+
=back
=cut
requires qw<
path
+ begin
+ end
>;
=head2 C<draw>