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59 lines
2.9 KiB
59 lines
2.9 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) 2013 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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#include "sort_triangles.h"
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#include "barycenter.h"
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#include "sort.h"
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#include "sortrows.h"
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#include "slice.h"
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#include "round.h"
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#include "colon.h"
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#include <iostream>
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template <
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typename DerivedV,
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typename DerivedF,
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typename DerivedMV,
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typename DerivedP,
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typename DerivedFF,
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typename DerivedI>
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IGL_INLINE void igl::sort_triangles(
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const Eigen::MatrixBase<DerivedV> & V,
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const Eigen::MatrixBase<DerivedF> & F,
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const Eigen::MatrixBase<DerivedMV> & MV,
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const Eigen::MatrixBase<DerivedP> & P,
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Eigen::PlainObjectBase<DerivedFF> & FF,
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Eigen::PlainObjectBase<DerivedI> & I)
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{
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using namespace Eigen;
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using namespace std;
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typedef typename DerivedV::Scalar Scalar;
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// Barycenter, centroid
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Eigen::Matrix<Scalar, DerivedF::RowsAtCompileTime,1> D,sD;
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Eigen::Matrix<Scalar, DerivedF::RowsAtCompileTime,3> BC;
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barycenter(V,F,BC);
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Eigen::Matrix<Scalar, DerivedF::RowsAtCompileTime,4> BC4(BC.rows(),4);
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BC4.leftCols(3) = BC;
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BC4.col(3).setConstant(1);
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D = BC4*(
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MV.template cast<Scalar>().transpose()*
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P.template cast<Scalar>().transpose().eval().col(2));
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sort(D,1,false,sD,I);
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FF = F(I.derived(),Eigen::all);
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}
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#ifdef IGL_STATIC_LIBRARY
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// Explicit template instantiation
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// generated by autoexplicit.sh
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template void igl::sort_triangles<Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<float, 4, 4, 0, 4, 4>, Eigen::Matrix<float, 4, 4, 0, 4, 4>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, 1, 0, -1, 1> >(Eigen::MatrixBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<float, 4, 4, 0, 4, 4> > const&, Eigen::MatrixBase<Eigen::Matrix<float, 4, 4, 0, 4, 4> > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> >&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> >&);
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template void igl::sort_triangles<Eigen::Matrix<double, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<double, 4, 4, 0, 4, 4>, Eigen::Matrix<double, 4, 4, 0, 4, 4>, Eigen::Matrix<int, -1, -1, 0, -1, -1>, Eigen::Matrix<int, -1, 1, 0, -1, 1> >(Eigen::MatrixBase<Eigen::Matrix<double, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> > const&, Eigen::MatrixBase<Eigen::Matrix<double, 4, 4, 0, 4, 4> > const&, Eigen::MatrixBase<Eigen::Matrix<double, 4, 4, 0, 4, 4> > const&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, -1, 0, -1, -1> >&, Eigen::PlainObjectBase<Eigen::Matrix<int, -1, 1, 0, -1, 1> >&);
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#endif
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