[1]徐智.GIS中地图投影的应用[J].水土保持研究,2004,11(02):55-58.
XU Zhi.The Applications of Map Projections in GIS[J].Research of Soil and Water Conservation,2004,11(02):55-58.
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《水土保持研究》[ISSN:1005-3409/CN:61-1272/P]
卷:
11
期数:
2004年02期
页码:
55-58
栏目:
出版日期:
1900-01-01
- Title:
-
The Applications of Map Projections in GIS
- 作者:
-
徐智
-
甘肃省水利厅水土保持局, 兰州, 730000
- Author(s):
-
XU Zhi
-
Bureau of Soil and Water Conservation, Water Conservancy Department of Gansu Province, Lanzhou 730000, China
-
- 关键词:
-
地图投影; 地理基础; GIS
- Keywords:
-
map projection; geo-base; GIS
- 分类号:
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TP79;P282.1
- 摘要:
-
GIS以表示地理信息的数据库为核心,以同时描述空间数据和属性数据为最基本的特征。将不同尺度、不同时期、不同来源的地理数据精确定位于公共的地理基础之上,是实现GIS目标的基本要求。不同投影之间的互相转换以及投影类型或参数的选择对GIS数据的输出结果有极大影响。通过对地图投影的分类、经纬线特征、变形分布的分析,探讨了GIS中地图投影的变换和选择方法。
- Abstract:
-
Taking geo-database as the core,GIS characterized by describing spatial and attribute data simultaneously.Positioning multi-scales,temporal or sources geo-datasets to a common geo-base is a basic requirement for the realizing of GIS purpose.The transformations between two different projections or the option of parameters has a great effect on the results of GIS.After an analysis on the classificaion and features of latitude and longtitude net and the distribution of distortion of map projections,the transformation ways and the selecting methods of map projections are studied.
更新日期/Last Update:
1900-01-01