ss="string">=</span> <span class="string">BinKinematics.empty</span>;   <span class="comment">% cylinder particle - sphere particle</span>
        kinpw_cyl_line <span class="string">BinKinematics</span> <span class="string">=</span> <span class="string">BinKinematics.empty</span>;   <span class="comment">% cylinder particle - line wall</span>
        kinpw_cyl_circ <span class="string">BinKinematics</span> <span class="string">=</span> <span class="string">BinKinematics.empty</span>;   <span class="comment