工程测量常用投影方法适用性分析及投影参数确定原则

Applicability Analysis of Commonly Used Projection Methods in Engineering Survey and Principle of Projection Parameters Determination

阐述了工程常用的高斯投影、UTM投影、兰勃特投影基本原理和方法,分析了主要投影方法变形特征及其适用范围,提出了最优化投影参数确定思路,并针对高斯正形投影提出了最优化投影参数确定3项标准。可服务于工程控制测量、地形成图、三维建模等地理信息产品生产过程中投影方法选择与投影参数确定。

The article elaborates on the basic principles and methods of Gaussian,UTM,and Lambert projections commonly used in engineering practice,analyzes the deformation characteristics of the main projection methods and their scope of application,puts forward the idea of determining the optimal projection parameters,and proposes three criteria for determining the optimal projection parameters specific to the Gaussian conformal projection.It can be used for the selection of projection methods and the determination of projection parameters in the production process of geographic information products such as engineering control surveying,geomorphological mapping and three-dimensional modeling.