不遵守JFreeChart背景颜色设置 [英] JFreeChart background color setting is not respected

问题描述

在JFreeChart中，我曾经使用 CategoryDataset 和 createLineChart 生成图表.看起来像这样:

In JFreeChart I used to generate the chart with CategoryDataset and with createLineChart. This looked like this:

由于某些轴的更改，我不得不切换到 XYLineAndShapeRenderer ，现在的图表如下所示:

Due to some axis changes I had to switch to XYLineAndShapeRenderer, and now the chart looks like this:

请注意图表周围的灰色区域.我想将其更改为透明或至少白色，就像上面的旧字体一样.

Please notice the gray area around the chart. I want to change it to transparent or at least white just like it was on the old one above.

我尝试通过以下方式做到这一点:

I tried doing it by:

chart.getPlot().setBackgroundPaint(Color.WHITE);

但是它不起作用.

如何将背景更改为白色，并将情节的背景更改为灰色(就像旧背景一样?)

How can I change that background to white, and change the plot's background to gray (just like it was on the old one?)

谢谢！

我可以更新绘图的背景，但不能更新ChartPanel的背景.

I can update the plot's background, but not the ChartPanel's.

以下是具有以下选项的图:

Here is the diagram which has these options:

lineChart.getPlot().setBackgroundPaint(Color.red);
chartPanel.setBackground(Color.yellow);

在这里，我希望将黄色作为chartPanel的背景.

Here I would like to have the yellow as the background of the chartPanel.

推荐答案

这是用户错误.绘图周围的灰色区域不是ChartPanel而是JFreeChart本身.图表和绘图背景可以分别设置，例如:

It was a user error. The gray area around the plot was not the ChartPanel but the JFreeChart itself. The chart and plot backgrounds can be set separately, for example:

lineChart.setBackgroundPaint(Color.pink);
plot.setBackgroundPaint(Color.cyan.darker());

可以在此处看到完整的测试示例.

A complete example for testing is seen here.

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