de" href="class_s_p_h_1_1_base_particles.html#a23aec0689b553745b32bd7fc5f10ebcf">getVariableByName</a>&lt;Real&gt;(<span class="stringliteral">&quot;SmoothingLengthRatio&quot;</span>)){};</div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;        <span class="keywordtype">int</span> operator()(<span class="keywordtype">size_t</span> particle_index)<span class="keyword"> const</span></div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;<span class