非标准格式地理空间数据的GIS方式直接读取研究

A Study of GIS-based Direct Reading of Nonstandard Geographic Spatial Data

探讨了基于优秀GIS平台 ,利用GIS平台提供的二次开发函数及其内部数据结构 ,用通用计算机语言VB ,采用一种“开后门”的方法 ,开发直接读取非标准格式地理空间数据的技术方法 。

Until now,any GIS software can not process the data of different GIS data sources and other geographic spatial data with format different from its own.In order to use such data,we usually transform the format of the data.A research reported that, in the developed countries,the money used to transform the data format is up to 30 percents of those of data building. A method called 'the Back Door' was used to perform the directly reading of nonstandard geographic spatial data with the API and data structure provided by GIS itself.The technique was xuccessfully applied to the PEIOS (Pearl River Estuary Integrated Observing System).