大比例尺地形图数据建库格式的转换  

Format Conversion of Database Construction of Large-scale Topomap

作　　者：李万民 蔡保祥 赫瑞[2] 

机构地区：[1]宁夏第一测绘院,宁夏银川750021 [2]宁夏基础地理信息中心,宁夏银川750021

出　　处：《现代测绘》2009年第6期30-32,共3页Modern Surveying and Mapping

摘　　要：介绍了将南方CASS软件编绘的1∶500数字化地形图(DWG格式)转换为符合测区数字测图DWG分层分色标准的数字化dwg格式图、转换为符合测区地形图要素分类编码规程和测区地形图数据结构规程的ESRI的SHP格式图、转换为符合测区地形图要素分类编码规程的Microsation V8的DGN格式图的三种格式转换的基本原理和技术路线。采用系统化编程方式批量进行转换,把大量的工作都凝聚在程序里,提高了效率,减免了数据转换过程中的信息损失,保证了质量,达到了入库要求。This paper introduces the basic principles and technical routes of the format conversions from CASS produced 1：500 digital topomap into digital dwg format of layered and color separated standard of surveyed area topomap, into ESRI and SHP format in consistent with the classification code procedures and data structure procedures of topomap elements of surveyed area and into Microsation V8 I^JN format in lined with classification code procedures of surveyed area topomap element. The format is batchly converted in Systematicly programmed way. The information loss during data conversion process is reduced and the map quality is guaranteed and at the same time the work efficiency is enhanced and the into database requirement is meeted

关 键 词：地形图 数据建库 数据格式 转换 

分 类 号：P208[天文地球—地图制图学与地理信息工程]