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https://github.com/SoftFever/OrcaSlicer.git
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2ae2672ee9
Fixing dep build script on Windows and removing some warnings. Use bundled igl by default. Not building with the dependency scripts if not explicitly stated. This way, it will stay in Fix the libigl patch to include C source files in header only mode.
49 lines
1.9 KiB
C++
49 lines
1.9 KiB
C++
// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2017 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_CROUZEIX_RAVIART_COTMATRIX
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#define IGL_CROUZEIX_RAVIART_COTMATRIX
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#include "igl_inline.h"
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#include <Eigen/Core>
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#include <Eigen/Sparse>
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namespace igl
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{
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// CROUZEIX_RAVIART_COTMATRIX Compute the Crouzeix-Raviart cotangent
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// stiffness matrix.
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//
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// See for example "Discrete Quadratic Curvature Energies" [Wardetzky, Bergou,
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// Harmon, Zorin, Grinspun 2007]
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//
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// Inputs:
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// V #V by dim list of vertex positions
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// F #F by 3/4 list of triangle/tetrahedron indices
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// Outputs:
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// L #E by #E edge/face-based diagonal cotangent matrix
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// E #E by 2/3 list of edges/faces
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// EMAP #F*3/4 list of indices mapping allE to E
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//
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// See also: crouzeix_raviart_massmatrix
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template <typename DerivedV, typename DerivedF, typename LT, typename DerivedE, typename DerivedEMAP>
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void crouzeix_raviart_cotmatrix(
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const Eigen::MatrixBase<DerivedV> & V,
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const Eigen::MatrixBase<DerivedF> & F,
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Eigen::SparseMatrix<LT> & L,
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Eigen::PlainObjectBase<DerivedE> & E,
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Eigen::PlainObjectBase<DerivedEMAP> & EMAP);
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// wrapper if E and EMAP are already computed (better match!)
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template <typename DerivedV, typename DerivedF, typename DerivedE, typename DerivedEMAP, typename LT>
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void crouzeix_raviart_cotmatrix(
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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<DerivedE> & E,
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const Eigen::MatrixBase<DerivedEMAP> & EMAP,
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Eigen::SparseMatrix<LT> & L);
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "crouzeix_raviart_cotmatrix.cpp"
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#endif
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#endif
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