›› 2007, Vol. 28 ›› Issue (9): 1954-1958.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Study on technology of 3D stratum modeling and visualization based on TIN

XIONG Zu-qiang1、2, HE Huai-jian1, XIA Yan-hua3   

  1. 1. Institute of Rock and Soil Mechanics,Chinese Academy of Sciences ,Wuhan 430071,China; 2. School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo 454001,China; 3. Department of Civil Engineering, Anhui University of Science & Technology Huainan 232001,China
  • Received:2006-09-01 Online:2007-09-10 Published:2013-10-15

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Abstract: The methods of 3D stratum modeling by multi-DEMs and triangular prisms can cause many redundant triangular-facets and slim triangular-prism meshes, so they aren’t propitious to fast scan the 3D stratum model, or used for the numerical simulation meshes. The TIN model can adjust the area and amount of the triangular-facets, so it can avoid redundant data, when it is used to represented the stratum interface. The TIN model can be built by the incremental insertion algorithm with the discrete points, and converted from grid (generated by Kriging interpolation) by greedy insertion; and it also can be built by the topographic contours. The cutting method between TIN models is presented to implement Boolean operations for stratum interfaces and faults 3D modeling. The multi representation methods are developed with the Visualization ToolKit; and the stratum body can be vividly represented by controlling the layer’s color, texture and material. At last the 3D stratum model of Longtan Hydropower Station is built to validate the theories and programs.

Key words: stratum, 3D-modelling, TIN, grid

CLC Number: 

  • TP391.41
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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