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ArcGIS与MapGIS数据格式互转换中信息丢失问题

发表时间:2014-11-15  浏览量:1776  下载量:672
全部作者: 张娇,季民河
作者单位: 华东师范大学地理信息科学重点实验室
摘 要: 以数据结构、数据模型、数据格式为切入点,对ArcGIS和MapGIS的标准数据格式.shp和.wt,.wl,.wp在数据转换中的信息丢失情况做调查分析。具体选择了直接转换和借助E00中间格式转换2种方法,对比研究覆盖云南大学校本部的地理数据的转换特点及信息保真能力,着重比较空间数据和属性信息中的字符型、浮点型、双精度型、文本型、影像型、二进制型数据在2个软件之间的表达及丢失情况。
关 键 词: 地图学;地理数据转换;地理信息系统;E00中间转化格式;ArcGIS;MapGIS
Title: Information loss in data format conversion between ArcGIS and MapGIS
Author: ZHANG Jiao, JI Minhe
Organization: Key Lab of Geographic Information Sicence, East China Normal University
Abstract: This paper dicusses the issue from several perspectives, including data structure, data model and data format. Meanwhile, the ArcGIS standard data format, namely shapefile, and the MapGIS standard data format, including .wt, .wl and .wp, are compared and analyzed in this investigation. Two transformation methods, including direct conversion and conversion with the E00 intermediate format, are applied to Yunnan University main campus data to study the data conversion characteristics and information loss issues. The different ways of data representation and dataloss during the convertion process between the two software packages are given detailed discussion, the issues related to different types of spatial data and attribute data, including string, float, double, text, image and binary data format are taken as research key points.
Key words: cartology; spatial data transformation; geographic information system; E00 intermediate transformation format; ArcGIS; MapGIS
发表期数: 2014年11月第21期
引用格式: 张娇,季民河. ArcGIS与MapGIS数据格式互转换中信息丢失问题[J]. 中国科技论文在线精品论文,2014,7(21):2176-2181.
 
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