A Method of Terrain Area Calculation in Considering of Slope Factors and Extreme Value

doi:10.13474/j.cnki.11-2246.2017.0028

Abstract

Abstract: In connection with the effection of the local terrain slope factors and extreme value to terrain area calculation, a new method that considering of slope factors and extreme value is proposed. The surface area theory and errors are analyzed. Finally the typical two region's data of west China are used experiment analysis. The results indicate that the algorithm enhance the terrain fitting, on the macro, the graphic property is similar with the regular grid of cross-diagonal method. The deduce area errors formula indicated that the terrain surface area calculation is more reliable in considering the slope factors and extremevalue.

Key words: slope, terrain area calculation, triangulation network, DEM, patch

CLC Number:

P208

CHENG Chuanlu, JIANG Guangwei, TIAN Xiaojing, MA Xinying, WANG Wenli. A Method of Terrain Area Calculation in Considering of Slope Factors and Extreme Value[J]. 测绘通报, 2017, 0(1): 126-129.

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