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36 lines
1.2 KiB
36 lines
1.2 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) 2015 Alec Jacobson <alecjacobson@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_INTERNAL_ANGLES_H
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#define IGL_INTERNAL_ANGLES_H
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#include "igl_inline.h"
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#include <Eigen/Core>
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namespace igl
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{
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/// Compute internal angles for a triangle mesh
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///
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/// @param[in] V #V by dim eigen Matrix of mesh vertex nD positions
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/// @param[in] F #F by poly-size eigen Matrix of face (triangle) indices
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/// @param[out] K #F by poly-size eigen Matrix of internal angles
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/// for triangles, columns correspond to edges [1,2],[2,0],[0,1]
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///
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/// \note if poly-size ≠ 3 then dim must equal 3.
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template <typename DerivedV, typename DerivedF, typename DerivedK>
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IGL_INLINE void internal_angles(
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const Eigen::MatrixBase<DerivedV>& V,
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const Eigen::MatrixBase<DerivedF>& F,
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Eigen::PlainObjectBase<DerivedK> & K);
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "internal_angles.cpp"
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#endif
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#endif
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