摘要
本文介绍用栅格数据进行图形叠置分析的方法,提出矢量数据转换为栅格数据的链拓扑法、减少栅格数据存储量的编码方法、根据模糊综合评判原理建立多因素综合评价数学模型以及叠置评价结果的类型格网合并的边界跟踪算法,最后给出一个实例说明栅格图形数据叠置分析方法在城镇规划中的应用。
In this paper, a method of graphic overlay analysis from the grid data is intro-duced. Four technical processes are proposed: A way of chain topology for converting the vector data into grid data. A specific encoding for data compression of grid mode and and its effective storage. Based on the fuzzy theoory a mathematical model of multielement comprehensiveanalysis is established. A border following program using in the grid merging after attribute data typesoverlay analysis. Finally, an application of land-use evaluation for buji (a town in Shen-zhen city)town planning is shown to examine the proposal model of grid data graphic overlay bythe author.
出处
《武汉测绘科技大学学报》
CSCD
1991年第3期59-69,共11页
Geomatics and Information Science of Wuhan University
关键词
栅格数据
图形
叠置分析
城镇规划
grid data
vector data
graphic overlay analysis
fuzzy comprehensive evaluation
