JChart2D

JChart2D is an minimalistic charting library. It is designed for displaying multiple traces consisting of tracepoints. JChart2D is centered around a single configureable swing widget: the Chart2D. It is a JComponent one can add to a java swing user interface.

Therefore basic knowledge of java awt and swing and the information provided on this site is helpful. If no basic knowledge of swing and awt is given, the example code will give a quick entry as well.

Why yet another charting library?

Many open source charting libraries are available. One list may be found at http://www.par.univie.ac.at/project/askalon/visualization/links.html (Askalon itself provides a big charting library).

These solutions differ in purpose and ease of use. Some are especially intended for business charting and therefore allow a lot of visual configuration and nice designs. To state it in one sentence: JChart2D is intended for engineering tasks and not for presentations. It's speciality is run time - dynamic precise display of data with a minimal configuration overhead.
Intended audience

Everybody may use JChart2D for free. Personally I would be very unhappy if it would be used within a "homeland security" and "war on terrorism" company. Even if it would be a techical honour to JChart2D as warfare requires high precision and engineering qualities.

What is new in this release:

• Bugfixes:
• Dynamic charts with highlighting now clear highlighted points.
• Removing traces now works correctly again.
• Stacked vertical charts now align again.
• Logarithmic axes now have correct labels.
• Test sources are now contained in the source download.
• Features:
• Axis now has a pluggable scale policy allowing you to have your custom scale.
• A new scale policy allows you to define the labels on the scale manually.

What is new in version 3.2.0:

• This is an overdue release (last release in 2008) to bring out major new features and bug fixes.

What is new in version 3.1.0:

• Minor bugs related to the user interface have been fixed.
• New features have been added: single data points may be highlighted, traces may be tracked with a tool tip, charts may be saved to EPS files, and charts may be printed via a print dialog.

Requirements:

• Java 2 Standard Edition Runtime Environment