n</th>
      <td><p>vector of longitude and latitude columns, and optionally an elevation column,
or an <code>sfc</code> column</p></td>
    </tr>
    <tr>
      <th>destination</th>
      <td><p>vector of longitude and latitude columns, and optionally an elevatino column,
or an <code>sfc</code> column</p></td>
    </tr>
    <tr>
      <th>id</th>
      <td><p>an id value in <code>data</code> to identify layers when interacting in Shiny apps.</p></td>
    </tr>
    <tr>
      <th>stroke_from</th>
      <td>