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75 lines
3.1 KiB
75 lines
3.1 KiB
#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::boundingRange(), @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 a bounding range |
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@param positions Vertex positions |
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@return Bounding range |
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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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@see @ref Math::Intersection::rayRange(), |
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@ref Math::Intersection::rangeFrustum(), |
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@ref Math::Intersection::rangeCone() |
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*/ |
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MAGNUM_MESHTOOLS_EXPORT Range3D boundingRange(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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@see @ref Math::Intersection::pointSphere(), |
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@ref Math::Intersection::sphereFrustum(), |
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@ref Math::Intersection::sphereCone(), |
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@ref Math::Intersection::sphereConeView() |
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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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