从一个空间坐标系转换到另外一个空间坐标系，需要具备7个参数，此程序就是计算七参数-About calculate

不同坐标系统之间必须加入七参数，才能使坐标转换严密执行，附件即使计算七参数的matlab程序。-Different coordinate system must be added between the seven parameters, to make the coordinate conversion is closely, even if the calculation of the seven parameters of the MATLAB program.