NDLI: Regular hexahedron tessellation algorithm for 3d complex entity models with inside cavities

Content Provider	IEEE Xplore Digital Library
Author	Guo Jiateng Wu Lixin Ma Hongbin Yang Yizhou
Copyright Year	2010
Description	Author affiliation: Institute for Geo-informatics & Digital Mine Research, Northeastern University, Shenyang, China (Guo Jiateng; Wu Lixin; Ma Hongbin; Yang Yizhou)
Abstract	3D entity model with the data structure of regular hexahedron, which is usually called as 3D regular block model, is now widely used in many domains such as resources estimation (RE) and finite element analysis (FEA) etc. In these domains, each regular hexahedron element of a 3D entity should be respectively evaluated with spatial related properties. However, 3D entity models are usually constructed from limit and sparse geometrical elements such as feature points and contour line strings, so these models are usually represented only with connected triangles as their surface but nothing in their hollow interior. We need a method to tessellate these models into regular blocks and fill the hollow interior with them. This paper mainly introduces an effective tessellation algorithm for converting 3D wireframe models which are represented as a collection of surface triangles to 3D regular block models which are represented as a collection of regular hexahedrons. With this algorithm, both simple 3D entity model with single outside boundary and complex 3D entity model with inside cavities can be tessellated into a collection of regular hexahedrons, which are constrained to the inside and outside boundaries of 3D entities. We have developed a test application for resources estimation based on this algorithm. A gold ore-body wire-frame model is tessellated into regular hexahedrons. The inverse distance weighting (IDW) interpolation method is used to evaluate each regular hexahedron with gold grade. The 3D block model of this gold ore-body is visualized with Au-grade distribution information.
Starting Page	4015
Ending Page	4018
File Size	421203
Page Count	4
File Format	PDF
ISBN	9781424495658
ISSN	21537003
e-ISBN	9781424495665
e-ISBN	9781424495641
DOI	10.1109/IGARSS.2010.5650292
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-07-25
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Solid modeling Three dimensional displays Computational modeling Cavity resonators Finite element methods Analytical models Gold GIS Regular hexahedron tessellation cavity block model resources estimation finite element analysis
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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