图形处理的开源类库，由AT&T实验室编写，具有很强的图像显示功能-Open-source graphics library, from the preparation of AT & T Labs, has a strong functions of image display

Graphviz的主页在http://www.graphviz.org/ ， 他是AT&T Labs-Research开发的图形绘制工具, 他可以很方便的用来绘制结构化的图形网络，支持多种格式输出， 生成图片的质量和速度都不错 Graphviz本身是开源的产品，下载可以到 这里 ，以及他的演示界面 Graphviz在windows上和Linux上都可以顺利运行-Graphviz home page in http://www.graphviz.org/, he is the AT &

The documentation is automatically extracted from the source code using Doxygen (http://www.doxygen.org). The suggested version is the latest one versions as back as 1.2.14 should still work. The basic requirement to produce html documentat

可以在C++和Java里调用接口直接绘图，老外写的开源画图库，免费使用。-In the C++ and Java in the call interface directly drawing, painting gallery foreigner to write open source, free of charge.