地理信息系统工程坐标系统研究

涉及如何建立平面坐标系统的论著较多，但多数都在较小的区域实施，相对情况比较简单，利用抵偿高程面或平移中央子午线，或者二者结合使用即可建立符合精度要求的平面坐标系统。但在较大（将近上万平方公里）的区域如何建立平面坐标系统的研究论著较少，本文对该问题进行了分析和探讨，归纳的方法和过程可对类似问题起到启发和参考的作用。

Research on GIS engineering coordinate system

So far, there are many papers on how to establish a planar coordinate system. However, most of them have studied the establishment of a planar coordinate system in a small area. It's relatively simple. A planar coordinate system that meets the required precision can be established by using height compensation plane, translating central meridian or both. There are few researches on how to establish a planar coordinate system in a large area (nearly ten thousand square kilometers). This paper makes a detailed study on analysis and discussion this complicated problem, and obtains reasonable results. The method and process of induction can enlighten similar problems and can be taken as a reference.