摘要
居民地是地图上的关键要素之一,居民地取舍是地图综合和数据综合的重要任务,选取数量的确定尤为关键。本文提出了用数据拟合方法确定居民地选取数量的新思路,以MATLAB为实验平台,对比了多种拟合函数在1∶5万比例尺地形图到1∶10万比例尺地形图综合时确定选取数量时的准确性,证明了数据拟合方法确定居民地定额选取数量的有效性。
Both paper map and map database involve scale change,which must involve the choice of feature elements.Residential area is one of the key elements on the map.The choice of residential area is an important task of cartographic generalization and data generalization,and the determination of the selection quantity is particularly critical.Many methods can be adopted,such as directly specifying the selection index,regression model and root mean square model.A new method to determine the number of residential areas by data fitting is proposed.Taking MATLAB as the experimental platform,the accuracy of various fitting functions in determining the number of residential areas when synthesizing 1∶50000 scale topographic map to 1∶100000 scale topographic map is compared,which proves the effectiveness of data fitting method in determining the number of residential areas quota.
作者
陈美凤
赵明辉
CHEN Meifeng;ZHAO Minghui(Pingyuan County Land and Resources Technology Center,Pingyuan 514600,China;School of Geospatial Information,Information Engineering University,Zhengzhou 450000,China)
出处
《城市勘测》
2023年第3期59-62,共4页
Urban Geotechnical Investigation & Surveying
关键词
地图制图
地图综合
居民地
数据拟合方法
cartography
cartographic generalization
residential area
data fitting method
