Jfreechart垂直线模糊 [英] Jfreechart vertical line is blurry

问题描述

我正在使用JFreechart生成一些绘图，但发现绘图中的线条模糊，但是演示显示所有线条都很细且没有任何模糊，我想知道是否有任何可以在其上生成高质量绘图的一个面板。

解决方案

有关更多信息，我无法解释渲染和问题中说明的重采样工件。从

I am using JFreechart to generate some plots, and I found the lines in my plot is blurry, but the demo shows that all the lines are thin and without any blurry, I was wondering if there any to generate good quality plot on a panel.

解决方案

With more information, I can't explain the rendering and resampling artifact illustrated in your question. Starting from MinMaxCategoryPlotDemo1.java in the demo, I added this line to get the PNG image shown.

ChartUtilities.saveChartAsPNG(new File("temp.png"), jfreechart, 1024, 768);

In particular,

• I chose a larger size, as it's generally better to have more pixels than fewer when resampling.

• I chose PNG, a lossless image format used in the MinMaxCategoryRenderer API image.

Click to enlarge:

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