Software features
Stable, lightweight and powerful
Free and open source, but development manuals and examples cost money to purchase
API processing is simple and easy to use
The resulting chart runs smoothly
Function introduction
Consistent and well-documented API, supporting multiple chart types;
A flexible design that is easily extensible, and targets both server-side and client-side applications;
Supports a variety of output types, including Swing components, image files (including PNG and JPEG), and vector graphics file formats (including PDF, EPS, and SVG);
JFreeChart is "open source", or more specifically, free software. It is distributed under the terms of the GNU General Public License (LGPL), which allows use by proprietary applications.
Useful
Useful
Useful