真方位角的计算与程序设计

Calculation and Program Design of True Azimuth

目前,没有一款软件同时具备高斯投影正、反算及坐标真方位角求取功能。现有软件求取真方位角时,需分别进行高斯投影坐标的换算,计算坐标方位角和子午线收敛角,最后再手动相加求得,计算烦琐、出错率高。本文结合实际用途,编写了真方位角计算软件。本软件可进行多个坐标系下的高斯坐标正、反算,以及对子午线收敛角、坐标方位角、真方位角的一站式计算。

At present,there is no software with the function of Gaussian projection forward and inverse calculation and coordinate true azimuth.When the existing software is used to obtain the true azimuth,it is necessary to convert the Gaussian projection coordinates,calculate the coordinate azimuth and the meridian convergence Angle,and finally calculate it manually,which is complicated and has a high error rate.This paper combines practical applications to develop a true azimuth calculation software.This software can perform Gaussian coordinate forward and backward calculations in multiple coordinate systems,as well as one-stop calculations for meridian convergence angle,coordinate azimuth and true azimuth.