摘要
在各种施工控制网实施中,为了提高成果精度,减小或避免因高斯投影长度变形所带来的影响,需要选择合适的抵偿面作为投影面。文章通过对两类高斯投影变形的特性分析,设计了计算最佳高程抵偿面高程的程序流程,并应用C#语言编写了相应的计算程序,实现了最佳投影面高程的自动计算,即输入测区最东端和最西端到中央子午线的距离和高程数据,即可计算出最佳抵偿面的高程。
In all kinds of construction control network implementation,in order to improve the accuracy of results,and reduce or avoid the impact caused by the length deformation of Gauss projection,it is necessary to select an appropriate compensation surface as the projection surface.According to the characteristic analysis of two types of Gauss projection deformation,a calculation program flow of optimal elevation compensation surface is designed,and a corresponding calculating program by using C#language is written,which realizes the automatic calculation of optimal compensation surface elevation.That is,inputting the distance and elevation data from the easternmost and westernmost part of a survey area to the central meridian,the optimal compensation surface elevation can be calculated.
作者
张迎伟
ZHANG Ying-wei(Shandong Geo-Surveying&Mapping Institute,Jinan Shandong 250002,China)
出处
《地矿测绘》
2020年第2期26-28,共3页
Surveying and Mapping of Geology and Mineral Resources
关键词
高程抵偿面
高斯投影
长度变形
中央子午线
elevation compensation surface
Gaussian projection
length deformation
central meridian
