MFC程序，角度判别法绘制三角网，能从文本输入点数据，也可以以交互式绘图方式增加点数据，绘制三角网，实时显示三角网拓扑关系并保存到文本中。-MFC program, drawn triangulation angle discrimination law, data text input, it can also increase the point graphically interactive data, draw triangulation, triangulation topologi