with message)</a>
</h5></div></div></div>
<p>
            <a class="indexterm" name="idp114615360"></a>
Checks if a geometry is valid (in the OGC sense)
          </p>
<h6>
<a name="geometry.reference.algorithms.is_valid.is_valid_2_with_message.h0"></a>
            <span class="phrase"><a name="geometry.reference.algorithms.is_valid.is_valid_2_with_message.synopsis"></a></span><a class="link" href="is_valid_2_with_message.html#geometry.reference.algorithms.is_valid.is_valid_2_with_message.synopsis">Synopsis