地质资料数据辅助信息符号库建设介绍

Introduction to the Construction of Auxiliary Information Symbol Library of Geological Data

摘要:

由于地质资料数据量庞大，符号种类繁多，表达形式不同，影响了地质信息的展示效果和后期的服务共享。该文在GB/T9582010《区域地质图图例》的基础上，结合国家正式发布的地质图图例标准，根据二级项目组的实际需求，对地质图图例符号进行了归并，图例符号代码由原来的10位编码改为6位编码，大大减少了数据库建设的冗余量；同时，制作了对应的点状、线状和面状符号，统一了ArcGIS平台下符号表达方式和显示的一致性，规范了子图、标注等符号的显示方式，优化了符号、图案与花纹的复杂程度，提高了在宏观视图中的显示效率，满足了地质资料数据信息化建设的需求。

Abstract:

Because of huge amount, various symbols and different forms of expression of geological data, the display effect of geological information and later service sharing will be effected. In this paper, on the basis of GB/T958-2010 " regional geological map illustrations", combining with the standard of geological map illustrations issued by the state, according to actual requirements of the two level project group, the symbols of geological map illustrations have been merged. The symbol code is changed from the original 10 bit coding system to 6 bit coding system, which reduces the redundancy in the construction of database greatly. At the same time, the corresponding punctuation, line and face symbols are made, and the consistency of the symbol expression and display under the ArcGIS platform is unified. The display mode of the symbols, such as subgraphs and annotations have been standardized, the complexity of symbols, patterns and patterns have been optimized, and the display efficiency in macro view has been improved. It will meet the demand of information construction of qualitative data.