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update bundled_deps

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QIDI TECH
2024-11-09 14:05:44 +08:00
parent 17c9bfd127
commit cfc606fea9
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bundled_deps/libigl/igl/crouzeix_raviart_massmatrix.h Normal file
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// This file is part of libigl, a simple c++ geometry processing library.
//
// Copyright (C) 2015 Alec Jacobson <alecjacobson@gmail.com>
//
// This Source Code Form is subject to the terms of the Mozilla Public License
// v. 2.0. If a copy of the MPL was not distributed with this file, You can
// obtain one at http://mozilla.org/MPL/2.0/.
#ifndef CROUZEIX_RAVIART_MASSMATRIX_H
#define CROUZEIX_RAVIART_MASSMATRIX_H
#include <Eigen/Dense>
#include <Eigen/Sparse>
namespace igl
{
// CROUZEIX_RAVIART_MASSMATRIX Compute the Crouzeix-Raviart mass matrix where
// M(e,e) is just the sum of the areas of the triangles on either side of an
// edge e.
//
// See for example "Discrete Quadratic Curvature Energies" [Wardetzky, Bergou,
// Harmon, Zorin, Grinspun 2007]
//
// Inputs:
// V #V by dim list of vertex positions
// F #F by 3/4 list of triangle/tetrahedron indices
// Outputs:
// M #E by #E edge/face-based diagonal mass matrix
// E #E by 2/3 list of edges/faces
// EMAP #F*3/4 list of indices mapping allE to E
//
// See also: crouzeix_raviart_cotmatrix
template <typename MT, typename DerivedV, typename DerivedF, typename DerivedE, typename DerivedEMAP>
void crouzeix_raviart_massmatrix(
const Eigen::MatrixBase<DerivedV> & V,
const Eigen::MatrixBase<DerivedF> & F,
Eigen::SparseMatrix<MT> & M,
Eigen::PlainObjectBase<DerivedE> & E,
Eigen::PlainObjectBase<DerivedEMAP> & EMAP);
// wrapper if E and EMAP are already computed (better match!)
template <typename MT, typename DerivedV, typename DerivedF, typename DerivedE, typename DerivedEMAP>
void crouzeix_raviart_massmatrix(
const Eigen::MatrixBase<DerivedV> & V,
const Eigen::MatrixBase<DerivedF> & F,
const Eigen::MatrixBase<DerivedE> & E,
const Eigen::MatrixBase<DerivedEMAP> & EMAP,
Eigen::SparseMatrix<MT> & M);
}
#ifndef IGL_STATIC_LIBRARY
# include "crouzeix_raviart_massmatrix.cpp"
#endif
#endif