施骏骋

摘 要:随着近年来测绘技术的发展,测绘数据产品越来越重视数据入库工作,通常在数据采集后首先进行制图编辑,之后进行数据入库,最终形成两套数据,即制图数据和入库数据。事实证明,制图数据与入库数据间经常存在数据转换的问题,在转换过程中常会出现数据精度和内容的损失。本文将传统的数据编辑、入库方法与Geoway建库一体化技术进行比较和分析,结合实际生产工作,介绍Geoway建库一体化技术的理论基础、基本概念、加工数据流程和技术特点。
关键词:制图;数据库;Geoway;一体化技术
中图分类号:P208.2文献标识码:A文章编号:1003-5168(2019)29-0026-03
Discussion on the Application of Drawing and
Storage Integration Technology
SHI Juncheng
(Yunnan Normal University,Kunming Yunnan 650092)
Abstract: With the development of surveying and mapping technology in recent years, surveying and mapping data products are paying more and more attention to data warehousing. Usually, after data acquisition, graphics editing is first performed, and then data is stored in the database, and finally two sets of data are formed, namely, drawing data and warehousing data. It has been proved that there are often some problems of data conversion between drawing data and storage data, such as data accuracy and content loss often occur during the conversion process. This paper compared and analyzed traditional data editing and warehousing methods with Geoway database drawing integration technology, and introduced the theoretical basis, basic concepts, processing data flow and technical characteristics of Geoway database integration technology in combination with actual production work.
Keywords: mapping;database;Geoway;integration technology
傳统的测绘生产模式是首先通过外业进行数据采集,然后用制图软件进行数据编辑,最后按照数据入库要求存入数据库[1]。随着行业的发展,测绘生产模式逐渐从编辑与入库分离、编辑先于入库朝编辑与入库同步、编辑与入库并重的方向发展,并要求编辑数据与入库数据的高无损[2]、高兼容、高同步性。
对于传统的制图和编辑,一般分两步进行。第一步,在AutoCAD中进行制图数据的编辑[3],即按照国家制图标准来进行图面上的编辑,最终使各种点线面元素、符号、注记等符合国家制图标准要求。第二步,在ArcGIS中对数据进行入库编辑,正确处理各个元素间的拓扑关系,使入库数据按照国家入库规范标准要求进行数据入库。最终,形成两套数据,即制图数据和入库数据。根据以往经验,传统制图入库分离的方法存在诸多问题。……