| 基于GIS平台的地形信息提取方案设计——以榆林市绥德县为例 |
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| 引用本文： | 任东风,郑东影.基于GIS平台的地形信息提取方案设计——以榆林市绥德县为例[J].测绘与空间地理信息,2017(12):10-12,16,20. |
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| 作者姓名： | 任东风 郑东影 |
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| 作者单位： | 辽宁工程技术大学测绘与地理科学学院,辽宁阜新,123000 |
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| 摘 要： | 人们很早就开始研究地形信息提取的技术,而传统的地形分析是基于二维平面地图进行的,从基于纸质地图到基于数字地图的地形分析,是地形分析手段和功能的一次重大突破。随着科学的发展,三维虚拟现实环境中的地形分析,使分析结构以可视化的状态更准确、更立体地表现出来,这又成为GIS历史上一个质的飞跃。地形信息的提取与分析,在水文学、地貌土壤学、生态学、工程学等领域都是有广泛应用的,所以,地形因子的提取成为本课题的重要研究方向。
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| 关 键 词： | 地形因子 地形特征提取 数字高程模型 |
Design of Terrain Information Extraction Scheme Based on GIS Platform:Take Suide County of Yulin City as an Example |
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| Abstract: | People started very early research on terrain information extraction technology,analysis from the traditional terrain,is based on a two-dimensional map,based on paper map to digital map based on the terrain analysis,is a major breakthrough in terrain analysis method and function.With the development of science,the terrain analysis in the 3D virtual reality environment makes the analysis structure more accurate and more stereoscopic,so it becomes a qualitative leap in the history of GIS.The extraction and analysis of topographic information are widely used in hydrology,Geomorphologic Soil Science,soil science,ecology and engineering.Therefore,the extraction of topographic factors has become an important research direction of this topic. |
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| Keywords: | terrain factor the terrain feature extraction digital elevation model |
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