"visible",this.guideX.redraw()):this.guideX.node.style.visibility="hidden";n||null==this.guideY?null!=this.guideY&&(e=d=null,null!=p&&null!=a&&(d=Math.min(a.x+b.x-this.graph.panDx,p.x),e=Math.max(a.x+a.width+b.x-this.graph.panDx,p.x+p.width)),this.guideY.points=null!=d&&null!=e?[new mxPoint(d,q),new mxPoint(e,q)]:[new mxPoint(-this.graph.panDx,q),new mxPoint(c.scrollWidth-3-this.graph.panDx,q)],this.guideY.stroke=this.getGuideColor(p,!1),this.guideY.node.style.visibility="visible",this.guideY.redraw()):