n class="comment">// required to hide certain tracks</span></div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;        };</div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160; </div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;        <span class="comment">// Functions to handle an incoming ROS message.</span></div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;        <span clas