nst </td></tr>
<tr class="memdesc:ad519877cb339d0460223d37916d08672"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return a unique integer id for the given edge.  <a href="#ad519877cb339d0460223d37916d08672">More...</a><br/></td></tr>
<tr class="separator:ad519877cb339d0460223d37916d08672"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:adc3a4a3eddb6ba32c2c849ee4ff2f45a"><td class="memItemLeft" align="right" valign="top">Edge&#160;</td><td class="memItemRight" valign="bott