中小比例尺基础电子地图多尺度显示的尺度划分  

Scale partition of multi-scale display in basic electronic map between middle and small scales

作　　者：白小双[1] 江南[2] 肖颖俊[1] 

机构地区：[1]军事交通学院,天津300161 [2]信息工程大学测绘学院,郑州450052

出　　处：《测绘科学》2014年第5期126-129,共4页Science of Surveying and Mapping

摘　　要：一直以来,基础电子地图多尺度显示中的尺度划分都以经验值为主,缺乏科学合理的数学模型。本文通过对中小比例尺基础电子地图显示问题进行研究,提出了基础电子地图载负量的计算方法,采用数据拟合,分析了基础电子地图载负量与显示比例尺之间的关系,确定了研究的显示范围,进而通过特征点确定了中小比例尺基础电子地图多尺度显示的尺度划分,并进行了误差分析,拟合效果良好。该结论已在陆地国界地理信息系统中得到了应用。The scale partition to multi-scale display in basic electronic map has long been given priority to experience.So there is no scientific and rational mathematic model.By researching display in basic electronic map between middle and small scales,the paper put forward a calculation method of basic electronic map load,and analyzed the relationship with display scale by data fitting,and determined the range of study.Then based on characteristic dots it confirmed the scale partition to multi-scale display in basic electronic map between middle and small scales.At last,it analyzed the error and obtained good results.This achievement has been applied in National Boundaries GIS.

关 键 词：中小比例尺基础电子地图 多尺度显示 特征点 显示比例尺 载负量 

分 类 号：P283[天文地球—地图制图学与地理信息工程]