public boolean equals(Object obj) {
        if (obj == this) {
            return true;
        }
        if (!(obj instanceof ModuloAxis)) {
            return false;
        }
        ModuloAxis that = (ModuloAxis) obj;
        if (this.displayStart != that.displayStart) {
            return false;
        }
        if (this.displayEnd != that.displayEnd) {
            return false;
        }
        if (!this.fixedRange.equals(that.fixedRange)) {
            return false;
        }
        return super.equals(obj);