在JFreeChart中结合XYPlot和TimeSeries元素 [英] Combining XYPlot and TimeSeries elements in JFreeChart

问题描述

我有兴趣在JFreeChart中的XY图表和时间序列之间进行某种混合，其中x轴是一些SimpleDateFormat元素(例如，"yyyy-MM-dd HH:mm:ss.SSS")，在此格式的域中具有各自的起点和终点，并且y轴是级别，例如LOW，MEDIUM和HIGH.对于每个特定的日期/时间，我想绘制这三个级别之一.我该怎么做呢?

I am interested in making a sort of hybrid between an XY Chart and Time Series in JFreeChart, where the x-axis is some SimpleDateFormat element (say, "yyyy-MM-dd HH:mm:ss.SSS"), with a respective start and end in the domain that is in this format, and the y-axis are levels, say LOW, MEDIUM, and HIGH. For each specific date/time, I would like to plot one of these three levels. How might I go about doing this?

推荐答案

您需要组合多个元素以获得所需的效果:

You'll need to combine several elements to get the desired effect:

• 以此处.

使用 作为域轴，如此处所示.

Use a DateAxis for the domain axis, as shown here.

在域轴上使用setDateFormatOverride()来应用您的SimpleDateFormat.

Use setDateFormatOverride() on the domain axis to apply your SimpleDateFormat.

使用 作为范围轴，以用符号替换整数值，如此处和

Use a SymbolAxis for the range axis to replace integer values with your symbols, as shown here and here.

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