prefuse类库及示例demo，有prefuse可以画的大部分图形，并且都是可以运行的工程。-the prefuse class library and sample demo, prefuse can draw most of the graphics, and are to be able to run the project.

flex图形库，可以用来做拓扑图，用来画曲线图，统计图表等-flex graph library

包中带有4个flex 项目工程，其中有图表库文件（flare),图表示例项目demos)，是非常完整的flex 动画图表的算法实现与图形实现，是学习的非常好的源码-A package with 4 flex projects, including chart library file (flare), sample chart project demos), is a very complete flex animation graph algorithm realization and gra