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《南京理工大学学报》（自然科学版）[ISSN:1005-9830/CN:32-1397/N]

卷:

期数:

1996年04期

页码:

40-43

栏目:

出版日期:

1996-08-30

文章信息/Info

Title:

The Random Curve Simulation in Geographical Information Processing

作者:

陈金水; 周仪¹; 魏一和⁴

河海大学计算机系, ¹ 南京水文所, 4江苏省测绘局, 南京210024

Author(s):

Chen Jinshui

Department of Computer Engineering, Hohai University, Nanjing 210024) ZhouYi

关键词:

地理信息系统;  地理图象;  随机;  曲线( 图) ;  模拟

Keywords:

geog raphical info rmat ion system;  g eo graphic pat ter n;  random;  curves ( g raphs) ;  simulation

分类号:

TP15

摘要:

地理信息图示中的很多图形要素均是随机曲线，如边界线、河流、海岸、道路等。在地理信息的计算机处理过程中，若要真实描述这类曲线将非常消耗存贮容量，也极大地加重内外交换的负担。该文采用近似折线来定义这类曲线，在成图时对折线的边实施随机化处理，从而构造出模拟曲线。这种方法在地理信息的随机曲线图示中非常有效，已被应用于水利工程信息管理之中

Abstract:

In geog raphical informat io n ( GI) draw ing , there ar e many random curves, like bo undary lines, reiver s, coast s and ro ads, etc. During the computer processing of GI, it is capacity-consumed to describe these curves t ruly , and the data ex chang ing between internal and external memory may be t ime-consumed. The method descr ibed in this paper used the broken line to define this kind of curv es, implement ing random pro cessing fo r ever y edg e of the broken line, and simulat ing the random cur ves. This method is helpful to cr eate the r andom curv es in hydr olog y and has been applied in the info rmat ion manag ement of w ater conservancy pro ject .

备注/Memo

备注/Memo:

陈金水　男　46岁　教授

常用功能

更新日期/Last Update: 2013-04-11