49 lines
1.4 KiB
C
49 lines
1.4 KiB
C
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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) 2014 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_PROJECT_ISOMETRICALLY_TO_PLANE_H
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#define IGL_PROJECT_ISOMETRICALLY_TO_PLANE_H
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#include "igl_inline.h"
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#include <Eigen/Dense>
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#include <Eigen/Sparse>
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namespace igl
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{
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// Project each triangle to the plane
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//
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// [U,UF,I] = project_isometrically_to_plane(V,F)
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//
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// Inputs:
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// V #V by 3 list of vertex positions
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// F #F by 3 list of mesh indices
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// Outputs:
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// U #F*3 by 2 list of triangle positions
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// UF #F by 3 list of mesh indices into U
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// I #V by #F such that I(i,j) = 1 implies U(j,:) corresponds to V(i,:)
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//
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template <
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typename DerivedV,
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typename DerivedF,
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typename DerivedU,
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typename DerivedUF,
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typename Scalar>
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IGL_INLINE void project_isometrically_to_plane(
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const Eigen::PlainObjectBase<DerivedV> & V,
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const Eigen::PlainObjectBase<DerivedF> & F,
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Eigen::PlainObjectBase<DerivedU> & U,
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Eigen::PlainObjectBase<DerivedUF> & UF,
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Eigen::SparseMatrix<Scalar>& I);
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "project_isometrically_to_plane.cpp"
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#endif
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#endif
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