    <tr>
            <td style="font-family: Courier New,Courier,monospace;">const
voronoi_edge_type* <span style="font-weight: bold;">rot_next</span>()
const </td>
            <td>Returns the const pointer
to the CCW next edge rotated around the edge start point.<br>
Works for infinite edges as well.</td>
          </tr>
          <tr>
            <td style="font-family: Courier New,Courier,monospace;">voronoi_edge_type*
            <span style="font-weight: bold;">rot_prev</span>() </td>
            <td>R