1:25万南京市幅数字地质图制作方法浅析

Discussions on compilation of digital geological map of Nanjing City on a scale of 1:250000

利用M apG IS平台完成1∶25万南京幅地质图数字化,对其项目的原始资料的要求,工作方法、流程,数字化录入操作规程,图层文件的建立及属性输入,全过程的质量管理,图幅主要地理地质内容,做了一些简单分析。

The compilation of digital geological maps was a course of digitalization of traditional geological maps and the set up of spatial data information bank. The present foundation for digital geological map compilation was MapGIS compiling system, and took it as a platform to digitalize the geographic elements and geological elements. The digital map of 1：250 000 scaled Nanjing City was accomplished based on MapGIS platform, the author recorded the primitive data, working method, flow sheet into the operation regulations, analyzed the establishment of map layers and attributive input, quality supervision of the whole process as well as the major geological contents about the concerned map.