mxGraph.prototype.isConstrainChildren=function(){return this.constrainChildren};mxGraph.prototype.setConstrainChildren=function(a){this.constrainChildren=a};mxGraph.prototype.isConstrainRelativeChildren=function(){return this.constrainRelativeChildren};mxGraph.prototype.setConstrainRelativeChildren=function(a){this.constrainRelativeChildren=a};mxGraph.prototype.isAllowNegativeCoordinates=function(){return this.allowNegativeCoordinates};