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LICENSE
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SCR#:3141.0
Title: Tusqh
Type: Partner
Tusqh (pronounced "tusk") is software for generating cubical meshes in 2D and 3D, and computing, describing and controlling the homology (topology) of these meshes using persistent homology. It is based on a background grid, and including a grid cell in the output if its volume-fraction is above a selectable threshold. Volume-fraction means the fraction of the cell that lies inside the domain being meshed, and is estimated by sampling points within the cell and calculating whether each point lies outside or inside the domain based on its winding number. It includes anti-aliasing algorithms for mitigating the effects of the arbitrary choice of background grid orientation and scale. Tusqh depends on third party software: Rhinoceros 3D, Grasshopper, libigl, and Aleph.
The author is Brian Shawcroft, while at Brigham Young University, and while at Sandia National Laboratories. His research partners were Prof. Kendrick Shepherd, BYU, and Scott A. Mitchell, Sandia National Labs.
This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Advanced Scientific Computing Research (ASCR), Applied Mathematics Program. Sandia National Laboratories is a multimission laboratory managed and operated by National Technology & Engineering Solutions of Sandia, LLC, a wholly owned subsidiary of Honeywell International Inc., for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-NA0003525.
BSD 3-Clause License
The Department of Energy (DOE), by memo dated 12/17/2024, has granted National Technology and Engineering Solutions of Sandia, LLC (NTESS) permission to assert its copyright in software entitled " Tusqh ".
As this software is to be released as OSS, the software is deemed to be Publicly Available.
Copyright (c) 2024, Sandia National Laboratories
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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