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General planar quadrilateral mesh design using conjugate direction field

Published: 12 December 2011 Publication History

Abstract

We present a novel method to approximate a freeform shape with a planar quadrilateral (PQ) mesh for modeling architectural glass structures. Our method is based on the study of conjugate direction fields (CDF) which allow the presence of ±κ/4(κ ε Z) singularities. Starting with a triangle discretization of a freeform shape, we first compute an as smooth as possible conjugate direction field satisfying the user's directional and angular constraints, then apply mixed-integer quadrangulation and planarization techniques to generate a PQ mesh which approximates the input shape faithfully. We demonstrate that our method is effective and robust on various 3D models.

Supplementary Material

Supplemental material. (a140-liu.zip)

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      Published In

      cover image ACM Transactions on Graphics
      ACM Transactions on Graphics  Volume 30, Issue 6
      December 2011
      678 pages
      ISSN:0730-0301
      EISSN:1557-7368
      DOI:10.1145/2070781
      Issue’s Table of Contents

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      Association for Computing Machinery

      New York, NY, United States

      Publication History

      Published: 12 December 2011
      Published in TOG Volume 30, Issue 6

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      Author Tags

      1. architectural geometry
      2. conjugate direction field
      3. planar quadrilateral mesh

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