摘要
根据建立数字高程模型(DEM)的基本要求,分析了断裂线中常见的陡坎在大比例尺不规则三角网型DEM中的成图特点,提出了用面积阀值来对三角网中的三角形进行取舍,并用模拟数据进行了试验。
By the basic requirement of construction of Digital Elevation Model （ DEM）, this paper analyzes the characteristic of escarpment which is one of fracture - line in the large - scale irregular triangle net DEM. Then it proposes to accept or reject the triangles in the TIN by area - limit, and has a test on analogue data.
出处
《地矿测绘》
2005年第2期8-9,12,共3页
Surveying and Mapping of Geology and Mineral Resources
