lass="comment">// particle 1 as reference particle</span></div>
<div class="line"><a id="l00156" name="l00156"></a><span class="lineno">  156</span>  <a class="code hl_typedef" href="namespacenetdem.html#a510a89239abc51ed4d8d88ce7ee403df">Vec3d</a> pos_1, dpos_12, dpos_12_ref;</div>
<div class="line"><a id="l00157" name="l00157"></a><span class="lineno">  157</span>  <a class="code hl_typedef" href="namespacenetdem.html#aa088f3b9daf31efbeb49c18db267c791">Vec4d</a> quat_1, dquat_12;</div>
<div class="line"><