本文在推导缠绕封头由赤道边缘到极孔边缘这一测地线所对应的中心角计算的通用方法的基础上,设计了程序框图和程序.本程序可以对任何型线旋转而成的封头中心角进行计算。以椭球形封头为例,求出中心角的精确解和数值解,并进行了比较,证明了本程序的通用性、实用性和准确性。 Based on the general method of calculating the center angle of the geodesic winding from the equator edge to the edge of the polar hole, this paper designs the block diagram and the program.The program can be used for any type of seal Head center angle is calculated. Taking the ellipsoidal head as an example, the exact solution and numerical solution of the center angle are obtained and compared, which proves the universality, practicability and accuracy of this program.