三维图的绘制。通过程序来实现三维图的变成及实时显示图形的变化。通过对参数的修改，可以得到符合自身需要的程序，对于变成计算人员具有一定借鉴作用。-The three-dimensional map of the draw. Becomes and the real-time display graphics in a three-dimensional graph is implemented by a program change. By modifying the parameters, yo