本功能实现VC++与matlab的动态链接，能够具体实现三角函数的绘制，并能实时描点。-This feature dynamic link VC++ with Matlab, the concrete realization of the drawing of the trigonometric functions, and real-time depiction point.

已知轨道根数，用代数法求卫星轨迹，并画含有地球模型的动图-Known orbital number, the algebraic method for satellite trajectory, and painted with the earth model of the dynamic map