"l00088"></a><span class="lineno">   88</span>&#160;    <span class="comment">// Does object contain valid geometry?</span></div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;    <span class="keywordtype">void</span> isValid(<span class="keywordtype">bool</span> isValid_);</div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;    <span class="keywordtype">bool</span> isValid(<span class="keywordtype">void</span>) <span class="keyword">const</span>