antity.html">SPH::observer_dynamics::ObservingAQuantity&lt; VariableType &gt;</a></td></tr>
<tr class="memitem:a1317295f1e12809a14b3b721cc99ea75 inherit pub_methods_class_s_p_h_1_1observer__dynamics_1_1_observing_a_quantity"><td class="memItemLeft" align="right" valign="top"><a id="a1317295f1e12809a14b3b721cc99ea75"></a>
&#160;</td><td class="memItemRight" valign="bottom"><b>ObservingAQuantity</b> (<a class="el" href="class_s_p_h_1_1_base_body_relation_contact.html">BaseBodyRelationContact</a> &amp;contact_