摘要
在GIS点、线、区的缓冲运算中,采用通常方法完成的多类多级缓冲区文件往往只能作为图形表达,当需要后续空间分析运算时往往存在拓扑错误.以MAPGIS 7.x提供的缓冲区及区运算功能为基础,文章提出了一种实现多类多级缓冲的方法,解决了这一问题,并以多级多类的断层缓冲实证之.
In the buffering operation of point, line and area in GIS, multi-grade and multi-class buffer files un- der normal measures can only be used as graphs. Mistakes always emerge if it needs to use spatial analyzing op- eration. Based on the function of buffer and subtraction by the software of MAPGIS 7. x, a new mothod for many kinds of multi-level buffer has been proposed. In the article, an example has been listed to introduce the think- ing and the step of operation.
出处
《广州大学学报（自然科学版）》
CAS
2010年第4期47-49,共3页
Journal of Guangzhou University:Natural Science Edition
