| 地理信息系统与地形特征值的提取 |
| |
| 引用本文： | 马友平.地理信息系统与地形特征值的提取[J].湖北民族学院学报(哲学社会科学版),1997,15(6):40-43. |
| |
| 作者姓名： | 马友平 |
| |
| 作者单位： | 湖北民族学院林学系!445000 |
| |
| 摘 要： | 以地理信息系统中栅格数据结构为基础，建立数字地形模型（DEM），然后以从地形图上读取的各栅格点的高程值为准，求算出格栅格点的地形特征值坡度、坡向，以便对所研究地区的地形概况有全面的了解，可在计算机上显示三维立体图。
|
| 关 键 词： | 地理信息系统 地形特征值 提取 数字地形模型 栅格点 数据结构 森林生长 |
GEOGRAPHY INFORMATION SYSTEM AND THE EXTRACTATION OF VALUE OF TOPOGRAPHY FEATURES |
| |
| Ma Youping.GEOGRAPHY INFORMATION SYSTEM AND THE EXTRACTATION OF VALUE OF TOPOGRAPHY FEATURES[J].Journal of Hubei Institute for Nationalities(Natural Sciences),1997,15(6):40-43. |
| |
| Authors: | Ma Youping |
| |
| Abstract: | On the basis of netted date structure in geography information system,the data elevationmodel(DEM)is built in this paper. At the stamdard of the height value of each netted pont in topographic map,the value of topography features of each netted point,such as slope of degree and direction are calculated inorder to find out the survey of topography in the studied regions and to show the three-dimensional map oncomputer. |
| |
| Keywords: | geography information system value of topography feature extractation |
| 本文献已被 CNKI 维普 等数据库收录！ |
