A torus patch approximation approach for point projection on surfaces

  • Authors:
  • Xiao-Ming Liu;Lei Yang;Jun-Hai Yong;He-Jin Gu;Jia-Guang Sun

  • Affiliations:
  • School of Software, Tsinghua University, Beijing 100084, PR China and Department of Computer Science and Technology, Tsinghua University, Beijing 100084, PR China and Command and Engineering Colle ...;School of Software, Tsinghua University, Beijing 100084, PR China and Department of Computer Science and Technology, Tsinghua University, Beijing 100084, PR China and Key Laboratory for Informatio ...;School of Software, Tsinghua University, Beijing 100084, PR China and Key Laboratory for Information System Security, Ministry of Education, Beijing 100084, PR China and Tsinghua National Laborato ...;Jiangxi Academy of Sciences, Nanchang 330029, PR China;School of Software, Tsinghua University, Beijing 100084, PR China and Department of Computer Science and Technology, Tsinghua University, Beijing 100084, PR China and Key Laboratory for Informatio ...

  • Venue:
  • Computer Aided Geometric Design
  • Year:
  • 2009

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Abstract

This paper proposes a second order geometric iteration algorithm for point projection and inversion on parametric surfaces. The iteration starts from an initial projection estimation. In each iteration, we construct a second order osculating torus patch to the parametric surface at the previous projection. Then we project the test point onto the torus patch to compute the next projection and its parameter. This iterative process is terminated when the parameter satisfies the required precision. Experiments demonstrate the convergence speed of our algorithm.