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Volume 30 Issue 5
May  2005
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BAI Jianjun, ZHAO Xuesheng, CHEN Jun. Digital Elevation Modeling Based on Hierarchical Subdivision of the Triangular Meshes on Ellipsoidal Surface[J]. Geomatics and Information Science of Wuhan University, 2005, 30(5): 383-387.
Citation: BAI Jianjun, ZHAO Xuesheng, CHEN Jun. Digital Elevation Modeling Based on Hierarchical Subdivision of the Triangular Meshes on Ellipsoidal Surface[J]. Geomatics and Information Science of Wuhan University, 2005, 30(5): 383-387.

Digital Elevation Modeling Based on Hierarchical Subdivision of the Triangular Meshes on Ellipsoidal Surface

Funds:  国家杰出青年科学基金资助项目(40025101)
  • Received Date: 2005-03-11
  • Rev Recd Date: 2005-03-11
  • Publish Date: 2005-05-05
  • In order to overcome the crack,imprecision of geographic analysis and data redundancy caused by the traditional digital elevation model in modeling the large scale terrain, this paper presents a method of global digital elevation modeling based on hierarchical subdivision of the quaternary triangular mesh on ellipsoidal surface. This method not only eliminates the gap and imprecision of geographic analysis caused by map projection, but also reduce the data redundancy. The authors has used the global GTOPO30 data to prove the reliability of the proposed method.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Digital Elevation Modeling Based on Hierarchical Subdivision of the Triangular Meshes on Ellipsoidal Surface

Funds:  国家杰出青年科学基金资助项目(40025101)

Abstract: In order to overcome the crack,imprecision of geographic analysis and data redundancy caused by the traditional digital elevation model in modeling the large scale terrain, this paper presents a method of global digital elevation modeling based on hierarchical subdivision of the quaternary triangular mesh on ellipsoidal surface. This method not only eliminates the gap and imprecision of geographic analysis caused by map projection, but also reduce the data redundancy. The authors has used the global GTOPO30 data to prove the reliability of the proposed method.

BAI Jianjun, ZHAO Xuesheng, CHEN Jun. Digital Elevation Modeling Based on Hierarchical Subdivision of the Triangular Meshes on Ellipsoidal Surface[J]. Geomatics and Information Science of Wuhan University, 2005, 30(5): 383-387.
Citation: BAI Jianjun, ZHAO Xuesheng, CHEN Jun. Digital Elevation Modeling Based on Hierarchical Subdivision of the Triangular Meshes on Ellipsoidal Surface[J]. Geomatics and Information Science of Wuhan University, 2005, 30(5): 383-387.

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