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Estimation Normal Vector of Triangular Mesh Vertex by Angle and Centroid Weights and its Application

To compute vertex normal of triangular meshes more accurately, this paper presents an improved algorithm based on angle and centroid weights. Firstly, four representational algorithms are analyzed by comparing their weighting characteristics such as angles, areas and centroids. The drawbacks of each... Full description

Journal Title: TELKOMNIKA Indonesian Journal of Electrical Engineering 04/01/2013, Vol.11(4)
Main Author: Chen, Yueping
Other Authors: Gao, Jian , Wen, Hao , Chen, Xin
Format: Electronic Article Electronic Article
Language:
Subjects:
Quelle: CrossRef
ID: ISSN: 2302-4046 ; E-ISSN: 2087-278X ; DOI: http://dx.doi.org/10.11591/telkomnika.v11i4.2340
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recordid: crossref10.11591/telkomnika.v11i4.2340
title: Estimation Normal Vector of Triangular Mesh Vertex by Angle and Centroid Weights and its Application
format: Article
creator:
  • Chen, Yueping
  • Gao, Jian
  • Wen, Hao
  • Chen, Xin
subjects:
  • Engineering
ispartof: TELKOMNIKA Indonesian Journal of Electrical Engineering, 04/01/2013, Vol.11(4)
description: To compute vertex normal of triangular meshes more accurately, this paper presents an improved algorithm based on angle and centroid weights. Firstly, four representational algorithms are analyzed by comparing their weighting characteristics such as angles, areas and centroids. The drawbacks of each algorithm are discussed. Following that, an improved algorithm is put forward based on angle and centroid weights. Finally, by taking the deviation angle between the nominal normal vector and the estimated one as the error evaluation standard factor, the triangular mesh models of spheres, ellipsoids, paraboloids and cylinders are used to analyze the performance of all these estimation algorithms. The machining and inspection operations of one mould part are conducted to verify the improved algorithm. Experimental results demonstrate that the algorithm is effective.
language:
source: CrossRef
identifier: ISSN: 2302-4046 ; E-ISSN: 2087-278X ; DOI: http://dx.doi.org/10.11591/telkomnika.v11i4.2340
fulltext: no_fulltext
issn:
  • 2087278X
  • 2087-278X
  • 23024046
  • 2302-4046
url: Link


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descriptionTo compute vertex normal of triangular meshes more accurately, this paper presents an improved algorithm based on angle and centroid weights. Firstly, four representational algorithms are analyzed by comparing their weighting characteristics such as angles, areas and centroids. The drawbacks of each algorithm are discussed. Following that, an improved algorithm is put forward based on angle and centroid weights. Finally, by taking the deviation angle between the nominal normal vector and the estimated one as the error evaluation standard factor, the triangular mesh models of spheres, ellipsoids, paraboloids and cylinders are used to analyze the performance of all these estimation algorithms. The machining and inspection operations of one mould part are conducted to verify the improved algorithm. Experimental results demonstrate that the algorithm is effective.
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