mxXmlCanvas2D.prototype.begin=function(){this.root.appendChild(this.createElement("begin"));this.lastY=this.lastX=0};mxXmlCanvas2D.prototype.moveTo=function(a,b){var c=this.createElement("move");c.setAttribute("x",this.format(a));c.setAttribute("y",this.format(b));this.root.appendChild(c);this.lastX=a;this.lastY=b};