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HexaLab.net: an online viewer for hexahedral meshes

Matteo Braccix, Marco Tarini1,2,x, Nico Pietroni1,4, Marco Livesu3, Paolo Cignoni1

Computer-Aided Design, Volume 110, May 2019

DOI:10.1016/j.cad.2018.12.003

(preprint available on arxiv)

Copyright 2018 Visual Computing Lab ISTI - CNR

Live view on www.hexalab.net

HexaLab is a WebGL application for real time visualization, exploration and assessment of hexahedral meshes. HexaLab can be used by simply opening www.hexalab.net. This visualization tool targets both users and scholars. Practitioners who employ hexmeshes for Finite Element Analysis, can readily check mesh quality and assess its usability for simulation. Researchers involved in mesh generation may use HexaLab to perform a detailed analysis of the mesh structure, isolating weak points and testing new solutions to improve on the state of the art and generate high quality images. To this end, we support a wide variety of visualization and volume inspection tools. The system also offers immediate access to a repository containing all the publicly available meshes produced with the most recent techniques for hex mesh generation. We believe HexaLab, providing a common tool for visualizing, assessing and distributing results, will push forward the recent strive for replicability in our scientific community. The system supports hexahedral models in the popular .mesh and .vtk ASCII formats.

Hexalab was awarded with the 2021 Symposium on Geometry Processing Dataset Award

HexaLab aims also to easily present the results of recent papers on hex meshing by directly including them in its own repository when provided by the authors. The datasets presented are copyrighted by the respective paper authors. Look in the datasets folder for more info.

Release Notes

  • 2023.12 added "Meso-Skeleton Guided Hexahedral Mesh Design"
  • 2023.11 added "HexBox - Interactive Box Modeling of Hexahedral Meshes"
  • 2023.03 added "Evocube - a Genetic ..."
  • 2022.10 added "Hex Me If You Can", updated Threejs to r145, added number of hex in the mesh dropdown menu, improved vtk parser.
  • 2021.12 added three 2021 datasets, ("Generalized Adaptive Refinement...", "At-Most-Hexa Meshes" and "Interactive All-Hex Meshing..."), updated Threejs to r135
  • 2021.05 added "Cut-enhanced PolyCube-Maps for Feature-aware..."
  • 2020.10 Complete rewrote of the core data structures. Now it is much faster and it uses a fraction of memory. All datasets, even the ones composed by more than 600k cells, can be loaded.
  • 2020.07 added "LoopyCuts: Practical Feature-Preserving..."
  • 2019.06 added "Feature Preserving Octree-Based..."
  • 2019.05 added "Dual Sheet Meshing...", "Symmetric Moving Frames...", "Hexahedral Mesh Generation via Constrained"
  • 2019.01 added "Singularity Structure Simplification of Hexahedral..."
  • 2019.01 added "Selective Padding for Polycube‐Based Hexahedral Mes..."
  • 2018.10 added "A global approach to multi-axis swept..." and "Fuzzy clustering based pseudo-swept ...
  • 2018.06 added "All-Hex Mesh Generation via Volumetric PolyCube"
  • 2018.05 added "PolyCut: Monotone Graph-Cuts for PolyCube Base" and "Explicit Cylindrical Maps for General..."
  • 2018.01 First public version, released with the preprint on arxiv