def add_tip_lines_to_axes(self):
<EOL>xpos, ypos, aedges, averts = self.get_tip_label_coords() <EOL>if self.style.tip_labels_align:<EOL><INDENT>self.axes.graph(<EOL>aedges,<EOL>vcoordinates=averts,<EOL>estyle=self.style.edge_align_style, <EOL>vlshow=False,<EOL>vsize=<NUM_LIT:0>,<EOL>)<EOL><DEDENT>
add lines to connect tips to zero axis for tip_labels_align=True