public boolean equals(Object obj) {
        if (this == obj) {
            return true;   
        }
        if (!(obj instanceof PlotRenderingInfo)) {
            return false;
        }
        PlotRenderingInfo that = (PlotRenderingInfo) obj;
        if (!ObjectUtilities.equal(this.dataArea, that.dataArea)) {
            return false;   
        }
        if (!ObjectUtilities.equal(this.plotArea, that.plotArea)) {
            return false;   
        }
        if (!ObjectUtilities.equal(this.subplotInfo, that.subplotInfo)) {
            return false;   
        }
        return true;