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Authors: Alexander Hans Leutgeb ; Michael Florian Hava and Alexander Hans Leitner

Affiliation: Unit Industrial Software Applications, RISC Software GmbH, Softwarepark 35, Hagenberg, Austria

Keyword(s): Implicit Representation, Point Cloud Fitting, Set-theoretic Modeling, Ray Casting, Real-time Simulation.

Abstract: We present a novel approach, which supports efficient visualization and set-theoretic difference operations for accurate geometric modelling in real-time simulations. The geometric operands can be in any representation as long as they are watertight and are convertible to an oriented point cloud. A novel region growing based fitting routine converts the oriented point clouds into a watertight piecewise quadratic implicit representation. During set-theoretic modeling these implicit representations are mapped to the fixed depth hierarchical grid of the resulting geometric model. Thereby a surface elimination algorithm removes parts not contributing to the final surface. This guarantees that the number of already performed modeling operations have only a minor performance impact on the algorithms processing the model. For visualization a novel ray casting based approach was developed, enabling interactive frame rates at Full-HD screen resolutions. The evaluation of the developed method proves its modeling performance and high geometric accuracy by means of the simulation of subtractive manufacturing examples. (More)

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Paper citation in several formats:
Leutgeb, A. ; Hava, M. and Leitner, A. (2020). Efficient Visualization and Set-theoretic Difference Operations for Accurate Geometric Modeling in Real-time Simulations. In Proceedings of the 15th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2020) - GRAPP; ISBN 978-989-758-402-2; ISSN 2184-4321, SciTePress, pages 299-306. DOI: 10.5220/0008983802990306

@conference{grapp20,
author={Alexander Hans Leutgeb and Michael Florian Hava and Alexander Hans Leitner},
title={Efficient Visualization and Set-theoretic Difference Operations for Accurate Geometric Modeling in Real-time Simulations},
booktitle={Proceedings of the 15th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2020) - GRAPP},
year={2020},
pages={299-306},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0008983802990306},
isbn={978-989-758-402-2},
issn={2184-4321},
}

TY - CONF

JO - Proceedings of the 15th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (VISIGRAPP 2020) - GRAPP
TI - Efficient Visualization and Set-theoretic Difference Operations for Accurate Geometric Modeling in Real-time Simulations
SN - 978-989-758-402-2
IS - 2184-4321
AU - Leutgeb, A.
AU - Hava, M.
AU - Leitner, A.
PY - 2020
SP - 299
EP - 306
DO - 10.5220/0008983802990306
PB - SciTePress

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