本软件属于测绘编程小程序，可以实现普通绘画功能，可以绘出陡坎、城墙，GPS点等-The mapping program is a small software program, can achieve normal drawing functions, you can draw scarp, walls, GPS points

内含VB绘制三次样条曲线方法,并加入一个计时器,动态生成点并绘制样条曲线,形成动态锯齿图.-VB containing cubic spline curve drawing method, and add a timer, dynamically generated point and draw spline curves to form a dynamic zigzag map.