Openchart2 is a full-featured 2D plotting solution for Java applications.  The library is licensed under the GNU Lesser GPL, making incorporation into any project inexpensive.

Graph Types

Openchart2 supports a variety of chart types, including:

1. Bar Charts - including Stacked Bar Charts
2. Pie Charts
3. Radar Charts
4. Scatter Plots - including Line Charts, Point Charts, or combinations

The Openchart2 rendering system allows multiple types of plots to be drawn on the same view, enabling unlike graphs to appear together.

Simple Data Passing

Openchart2 allows for a variety of techniques to be used for passing data into the plotting routines.  Simple arrays or full database sources can provide data to the plotting routines.

Dynamic Zooming

All chart types support dynamic zooming.  Sample Swing chart panels are provided in the library with complete mouse-controlled dynamic zoom implemented for ease of use.