How Can I Resize a JFreeChart in a JPanel?

Resizing a JFreeChart

You've encountered an overly large JFreeChart when adding it to a JPanel. To modify its dimensions, utilize the following options within your ChartPanel:

• Accept the Defaults: Use the default width (680) and height (420).
• Specify Dimensions in the Constructor: Provide preferred width and height values in the ChartPanel constructor.
• Explicitly Set Preferred Size: Invoke setPreferredSize() to adjust the size as needed.
• Override getPreferredSize(): Calculate the size dynamically by overriding this method.

Consider the layout of the container where the ChartPanel will be added. By default, JPanel uses FlowLayout, while JFrame uses BorderLayout. For instance, ThermometerDemo leverages both preferred constructor values and a GridLayout to enable dynamic chart resizing.

Here's a visual representation of the issue and its resolution:

[Image of a large JFreeChart within a JPanel and a smaller, resized chart]

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