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A predictor–corrector-type technique for the approximate parameterization of intersection curves

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Applicable Algebra in Engineering, Communication and Computing Aims and scope

Abstract

We describe a method to approximate a segment of the intersection curve of two implicitly defined surfaces by a rational parametric curve. Starting from an initial solution, the method applies predictor and corrector steps in order to obtain the result. Based on a preconditioning of the two given surfaces, the corrector step is formulated as an optimization problem, where the objective function approximates the integral of the squared Euclidean distance of the curve to the intersection curve. An SQP-type method is used to solve the optimization problem numerically. Two different predictor steps, which are based on simple extrapolation and on a differential equation, are formulated. Error bounds are needed in order to certify the accuracy of the result. In the case of the intersection of two algebraic surfaces, we show how to bound the Hausdorff distance between the intersection curve (an algebraic space curve) and its rational approximation.

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Authors and Affiliations

  1. Institute of Applied Geometry, Johannes Kepler University, Linz, Austria

    Bert Jüttler

  2. Katedra algebry, geometrie a didaktiky matematiky FMFI UK, Bratislava, Slovakia

    Pavel Chalmovianský

Authors
  1. Bert Jüttler
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  2. Pavel Chalmovianský
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Correspondence to Bert Jüttler.

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Jüttler, B., Chalmovianský, P. A predictor–corrector-type technique for the approximate parameterization of intersection curves. AAECC 18, 151–168 (2007). https://doi.org/10.1007/s00200-006-0031-8

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  • DOI: https://doi.org/10.1007/s00200-006-0031-8

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