Offset Line Method-Based Study on Visualization of Steep Terrains on Loess Plateau in Shanxi Province

Wei Dong Zhao; Jia Zhong Qian; Chun Yin Zhou

doi:10.4028/www.scientific.net/AMR.219-220.400

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 219-220Offset Line Method-Based Study on Visualization of...

Offset Line Method-Based Study on Visualization of Steep Terrains on Loess Plateau in Shanxi Province

Abstract:

In order to realize the 3D visualization of steep terrains like level terraces, a new Offset Line Method (OLM) -based visual method is put forth in this paper. The constrained feature lines and their Bottom Offset Cliff Lines (BOCLs) are collected and considered while building DEM. Therefore, the steep terrains like level terraces with steep steps can be visualized well. Our case study shows that the steep terrains can be visualized well if the constrained feature lines and their BOCLs were considered according to the principles of OLM while building Triangulated Irregular Networks (TINs) or grid-based DEM. how to determine the optimal value of ∆d needs further study in the future.

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Periodical:

Advanced Materials Research (Volumes 219-220)

Pages:

400-403

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.219-220.400

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Online since:

March 2011

Authors:

Wei Dong Zhao, Jia Zhong Qian, Chun Yin Zhou

Keywords:

Digital Elevation Model, Loess Plateau, Offset Line Method, Terraces

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