数字地质调查系统中1︰2.5万实际材料图-1︰5万编稿原图制作新方法研究

New Method for Making 1∶25,000 Actual Material Maps and 1∶50,000 Manuscript Original Map in Digital Geological Survey System

信息化建设被誉为新时代地质工作转型升级的两大引擎之一,1︰5万地质图空间数据库是信息化建设的重要数据支撑,承担着从地质调查向服务应用转变的纽带作用,因此高质量、高效率的完成地质图空间数据库建设就显得十分重要。地质图空间数据库建设过程中1︰2.5万实际材料图与1︰5万编稿原图的制作是重点,在传统的建库流程中,存在诸如地质界线、地质面属性容易错填、漏填、地质体标注重叠、裁剪后需再次合并等问题,影响了工作效率。本文依托地质图空间数据库建设的实际经验分享建库的新方法,并对操作技巧与质量监控进行了详细介绍。该方法既能解决传统方法的不足,又能保证数据质量,提高建库效率。

Information construction is known as one of the two engines of the transformation and upgrading of geological work in the new era.The 1:50000 geological map spatial database is an important data support of information construction,and bears the role of the link from geological survey to service application.Therefore,it is very important to complete the construction of geological map spatial database with high quality and efficiency.In the process of building geological map spatial database,the key point is to make 1:25000 actual material map and 1:50000 manuscript original map.In the traditional process of building database,there are some problems,such as:geological boundary,geological surface attributes are easy to be filled wrongly,missed,geological body labels overlap,and need to be combined again after cutting,which affects the work efficiency.Based on the practical experience of the construction of geological map spatial database,this paper shares the new method of building the database,and introduces the operation skills and quality control in detail.This method can not only solve the shortcomings of traditional methods,but also ensure the data quality and improve the efficiency of database building.