ss="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;        <span class="keyword">public</span>:</div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;            <a class="code" href="class_s_p_h_1_1fluid__dynamics_1_1_surface_norm_with_wall.html">SurfaceNormWithWall</a>(<a class="code" href="class_s_p_h_1_1_base_body_relation_contact.html">BaseBodyRelationContact</a> &amp;contact_relation, Real contact_angle);</div><div class="line"><a name="l00092"></a><span