Document Type

Conference Paper

Publication Date

2016

DOI

10.1016/j.proeng.2016.11.037

Publication Title

Procedia Engineering

Volume

163

Issue

Special Issue

Pages

136-148

Conference Name

25th International Meshing Roundtable

Abstract

The Dual Contouring algorithm (DC) is a grid-based process used to generate surface meshes from volumetric data. The advantage of DC is that it can reproduce sharp features by inserting vertices anywhere inside the grid cube, as opposed to the Marching Cubes (MC) algorithm that can insert vertices only on the grid edges. However, DC is unable to guarantee 2-manifold and watertight meshes due to the fact that it produces only one vertex for each grid cube. We present a modified Dual Contouring algorithm that is capable of overcoming this limitation. Our method decomposes an ambiguous grid cube into a maximum of twelve tetrahedral cells; we introduce novel polygon generation rules that produce 2-manifold and watertight surface meshes. We have applied our proposed method on realistic data, and a comparison of the results of our proposed method with results from traditional DC shows the effectiveness of our method.

Comments

Open access article under a CC-BY-NC-ND license: http://creativecommons.org/licenses/by-nc-nd/4.0/

Original Publication Citation

Rashid, T., Sultana, S., & Audette, M. A. (2016). Watertight and 2-manifold surface meshes using dual contouring with tetrahedral decomposition of grid cubes. Paper presented at the 25th International Meshing Roundtable, Arlington, VA.

ORCID

0000-0003-0011-1731

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