n the viewport </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">pos</td><td>the current mouse coordinates </td></tr>
    <tr><td class="paramname">w</td><td>width of viewport in pixels </td></tr>
    <tr><td class="paramname">h</td><td>height of viewport in pixels </td></tr>
    <tr><td class="paramname">newcoord</td><td>the new coordinates of the point in 3D space </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>true if