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46 lines
1.3 KiB
46 lines
1.3 KiB
1 year ago
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// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2016 Qingan Zhou <qnzhou@gmail.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla Public License
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// v. 2.0. If a copy of the MPL was not distributed with this file, You can
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// obtain one at http://mozilla.org/MPL/2.0/.
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#ifndef IGL_COPYLEFT_CGAL_INSPHERE_H
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#define IGL_COPYLEFT_CGAL_INSPHERE_H
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#include "../../igl_inline.h"
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namespace igl
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{
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namespace copyleft
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{
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namespace cgal
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{
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/// Test whether point is in a given sphere.
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///
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/// @param[in] pa 3D point on sphere
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/// @param[in] pb 3D point on sphere
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/// @param[in] pc 3D point on sphere
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/// @param[in] pd 3D point on sphere
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/// @param[in] pe 3D point to test
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/// @return 1 if pe is inside of the oriented sphere formed by pa,pb,pc,pd,
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/// 0 if pe is co-spherical with pa,pb,pc,pd,
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/// -1 if pe is outside of the oriented sphere formed by pa,pb,pc,pd.
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///
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template <typename Scalar>
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IGL_INLINE short insphere(
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const Scalar pa[3],
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const Scalar pb[3],
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const Scalar pc[3],
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const Scalar pd[3],
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const Scalar pe[3]);
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}
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}
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "insphere.cpp"
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#endif
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#endif
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