ramlisting">is valid? no
why not valid? Geometry has disconnected interior

<img src="../../../../img/algorithms/is_valid_example.png" alt="is_valid_example">

</pre>
<h6>
<a name="geometry.reference.algorithms.is_valid.is_valid_2_with_message.h8"></a>
            <span class="phrase"><a name="geometry.reference.algorithms.is_valid.is_valid_2_with_message.see_also"></a></span><a class="link" href="is_valid_2_with_message.html#geometry.reference.algorithms.is_valid.is_valid_2_with_message.see_also">See
     