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69 lines
2.8 KiB
69 lines
2.8 KiB
4 years ago
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#ifndef Magnum_MeshTools_BoundingVolume_h
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#define Magnum_MeshTools_BoundingVolume_h
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/*
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This file is part of Magnum.
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Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019,
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2020, 2021, 2022 Vladimír Vondruš <mosra@centrum.cz>
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Copyright © 2022 Pablo Escobar <mail@rvrs.in>
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files (the "Software"),
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to deal in the Software without restriction, including without limitation
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the rights to use, copy, modify, merge, publish, distribute, sublicense,
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and/or sell copies of the Software, and to permit persons to whom the
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Software is furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included
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in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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*/
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/** @file
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* @brief Function @ref Magnum::MeshTools::boundingBoxAxisAligned(), @ref Magnum::MeshTools::boundingSphereBouncingBubble()
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* @m_since_latest
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*/
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#include "Magnum/Magnum.h"
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#include "Magnum/MeshTools/visibility.h"
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namespace Magnum { namespace MeshTools {
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/**
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@brief Calculate an axis-aligned bounding box
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@param positions Vertex positions
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@return Bounding box
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@m_since_latest
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Same as @ref Math::minmax(const Corrade::Containers::StridedArrayView1D<const T>&).
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*/
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MAGNUM_MESHTOOLS_EXPORT Range3D boundingBoxAxisAligned(const Containers::StridedArrayView1D<const Vector3>& positions);
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/**
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@brief Calculate an approximate bounding sphere using the Bouncing Bubble
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algorithm
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@param positions Vertex positions
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@return Sphere center and radius
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@m_since_latest
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The resulting bounding sphere is not usually minimal. According to the author,
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a 1% to 2% error can be expected. Due to the nature of the algorithm, the
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radius is never below @ref Math::TypeTraits::epsilon(), even for empty or
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entirely overlapping lists of points. <em>NaN</em>s are ignored, unless the
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first position is <em>NaN</em> in which case it is propagated. Algorithm used:
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* *Bo Tian --- Bouncing Bubble: A fast algorithm for Minimal Enclosing Ball
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problem, 2012, https://www.grin.com/document/204869*
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*/
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MAGNUM_MESHTOOLS_EXPORT Containers::Pair<Vector3, Float> boundingSphereBouncingBubble(const Containers::StridedArrayView1D<const Vector3>& positions);
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}}
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#endif
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