这是关于force-direct算法的可视化方向的论文，主要为了使得画布中的各点分布均匀，弹簧与戒指模型说得很不错。-This is about the force-direct visualization of the algorithm the direction of the paper, the main canvas in order to make the points evenly distributed spring model very well with the ring.

能实现绘图功能，用VB编写，是学习绘图的基础参考程序-Can realize the drawing function, using VB to write, is the foundation of learning drawing reference program