Free pie chart software for windows

SpiceCharts 2D Pie Chart is a java applet to represent charts. It can be used to represent a single series of data. It has configurable title, radius of chart pie, colors, positions of percents, legend, positions and size of chart elements, and other features.SpiceCharts 2D Pie Chart is a Java 2D Pie Chart Applet software.

Openchart2 provides a powerful and simple interface for Java programmers to create two-dimensional charts and plots Openchart2 provides a powerful and simple interface for Java programmers to create two-dimensional charts and plots.
Openchart2 is a full-featured 2D plotting solution for Java applications.
Openchart2 features an assortment of graph styles, including advanced scatter plots, bar graphs, and pie charts.
Openchart2 supports a variety of chart types, including:
- Bar Charts - including Stacked Bar Charts
- Pie Charts
- Radar Charts
- 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.
Main features:
- 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.
System requirements:
- Java 1.5 (5.0) or higher

This is a highly parameterised exchange rate chart pulling data from a choice of web sites and allowing size, colours and other preferences to be set.
Data builds up in a local XML file showing how rates change over time.