/blockquote>Icon for the help window.</div></div><div class=CToolTip id="tt1531"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>HexagonPerimeter: function (</td><td class="PParameter  prettyprint " nowrap>bounds,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>vertex,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>next,