><td>this.ringMargin = null</td></tr></table></blockquote>pixel distance between rings, or multiple series in a donut plot. </div></div><div class=CToolTip id="tt407"><div class=CProperty><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>this.ringWidth = null</td></tr></table></blockquote>width of the ring around the gauge. </div></div><div class=CToolTip id="tt408"><div class=CProperty><blockquote><table border=0 cellspacing=0 cellpadding=0 class=Prototype><tr><td>this.rowSpac