TypeOrSphere
                  </p>
                </td>
<td>
                  <p>
                    double
                  </p>
                </td>
<td>
                  <p>
                    numeric type for radius (of sphere, earth) or sphere model
                  </p>
                </td>
</tr>
<tr>
<td>
                  <p>
                    typename CalculationType
                  </p>
                </td>
<td>
                  <p>
                    void
                  </p>
 