          <p>
                      Returns the point itself as the centroid
                    </p>
                  </td>
</tr>
<tr>
<td>
                    <p>
                      Multi Point
                    </p>
                  </td>
<td>
                    <p>
                      Calculates centroid (based on average)
                    </p>
                  </td>
</tr>
<tr>
<td>
                    <p>
                      linear (e.g. linestring)
                    </p>
            