JFreeChart自定义Y轴数值单位

// 显示数值数据的轴NumberAxis numberAxis = (NumberAxis) plot.getRangeAxis();// 是否由系统定义数据轴numberAxis.setAutoTickUnitSelection(false);// 数据轴数值单位大小double unit = 2d;// 一个数值单位NumberTickUnit numberTickUnit = new NumberTickUnit(unit);// 设置轴的数值单位并发送一个AxisChangeEvent所有注册的侦听器numberAxis.setTickUnit(numberTickUnit);