Validity-first automatic polycube labeling for CAD models
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arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866915144371535872 |
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| author | Mestrallet, Sébastien Bourcier, Christophe Ledoux, Franck |
| author_facet | Mestrallet, Sébastien Bourcier, Christophe Ledoux, Franck |
| contents | For many simulation codes, block-structured hex meshes remain preferred while their automatic generation is unsolved. We investigate the usage of a polycube-based approach. More specifically, we focus on the labeling stage, which consists in assigning each boundary facet to one of the 6 signed principal axis. Similar works are confronted with 2 challenges: over-constraining validity criteria, and the conflated processing of validity criteria with quality metrics. We tackle these obstacles with automatic routines based on semi-global labeling operators. Our approach is successfully tested on CAD models, which are of interest for many numerical simulation problems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_05712 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Validity-first automatic polycube labeling for CAD models Mestrallet, Sébastien Bourcier, Christophe Ledoux, Franck Computational Geometry For many simulation codes, block-structured hex meshes remain preferred while their automatic generation is unsolved. We investigate the usage of a polycube-based approach. More specifically, we focus on the labeling stage, which consists in assigning each boundary facet to one of the 6 signed principal axis. Similar works are confronted with 2 challenges: over-constraining validity criteria, and the conflated processing of validity criteria with quality metrics. We tackle these obstacles with automatic routines based on semi-global labeling operators. Our approach is successfully tested on CAD models, which are of interest for many numerical simulation problems. |
| title | Validity-first automatic polycube labeling for CAD models |
| topic | Computational Geometry |
| url | https://arxiv.org/abs/2502.05712 |