CODEWITHSUNDEEP
javajfreechart
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Reputation: 8928

Change bar color in JFreeChart Bar Chart

I'm making an application that takes some data and it needs to make a bar chart, but the color of a bar MUST be related to data that it is representing.

Imagine that I have this kind of data: BANANA 430 WATER MELLON 300

Now I should make a bar chart, and I would like to paint the BANANA bar with yellow paint, and WATER MELLON bar with green paint. I'm using JFreeChart library in java. My research led me to making my custom renderer, but then if I make custom renderer the colors will appear randomly on bars. Any solution for this?

Upvotes: 3

Views: 12690

Answers (2)

peshkira
peshkira

Reputation: 6239

Here is a demo, where you can see how to do this. As in the comment above, you have to add the paints to the series as you introduced them (0 is the first, 1 is the second and so on).

Upvotes: 2

MaVRoSCy
MaVRoSCy

Reputation: 17849

Maybe this http://www.java2s.com/Code/Java/Chart/JFreeChartBarChartDemo3differentcolorswithinaseries.htm can be of help.

See how the code below is used:

    final CategoryItemRenderer renderer = new CustomRenderer(
        new Paint[] {Color.red, Color.blue, Color.green,
            Color.yellow, Color.orange, Color.cyan,
            Color.magenta, Color.blue}
    );

Upvotes: 4

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