GIS动态缓冲带分析模型及其应用  

GIS Based Dynamic Buffer Analysis Model and Its Applications

作　　者：黄杏元[1] 徐寿成[1] 

机构地区：[1]南京大学城市与资源系

出　　处：《中国图象图形学报（A辑）》1998年第10期871-873,共3页Journal of Image and Graphics

基　　金：国家自然科学基金

摘　　要：根据ＧＩＳ对地理实体进行缓冲带（ｂｕｆｅｒ）分析的不同，将缓冲带操作分为静态和动态２类。对动态缓冲带操作不是简单地设定距离参数的方法，而必须依据操作对象和要求，选择适用的分析模型，有时还需要对模型作变换。本文给出了不同的模型及变换公式，并通过实例具体介绍了动态缓冲带分析模型参数的确定方法和缓冲带的建立步骤。The operational model for creating buffer zone under the environment of GIS can be classified into dynamic and static according to the geographic entities and analysis requirements.In the light of dynamic model,the buffer zones are produced not by giving a fixed radius around existing geographic entities,but by using the matching algorithm with entities and requirements.At times,the model must be transformed to achieve some given attribute values for the feature.This paper gives different models and transform algorithms for dynamic buffer analysis,describes the method for generating parameters used in models,and presents the processes of creating buffer zones by examples.

关 键 词：地理信息系统 GIS 动态缓冲带 分析模型 

分 类 号：P91－39[天文地球—自然地理学]