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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.
47 lines
1.3 KiB
C++
47 lines
1.3 KiB
C++
// 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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#ifndef IGL_SUM_H
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#define IGL_SUM_H
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#include "igl_inline.h"
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#include <Eigen/Sparse>
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namespace igl
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{
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// Note: If your looking for dense matrix matlab like sum for eigen matrics
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// just use:
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// M.colwise().sum() or M.rowwise().sum()
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//
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// Sum the columns or rows of a sparse matrix
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// Templates:
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// T should be a eigen sparse matrix primitive type like int or double
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// Inputs:
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// X m by n sparse matrix
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// dim dimension along which to sum (1 or 2)
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// Output:
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// S n-long sparse vector (if dim == 1)
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// or
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// S m-long sparse vector (if dim == 2)
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template <typename T>
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IGL_INLINE void sum(
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const Eigen::SparseMatrix<T>& X,
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const int dim,
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Eigen::SparseVector<T>& S);
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// Sum is "conducted" in the type of DerivedB::Scalar
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template <typename AType, typename DerivedB>
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IGL_INLINE void sum(
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const Eigen::SparseMatrix<AType> & A,
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const int dim,
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Eigen::PlainObjectBase<DerivedB>& B);
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "sum.cpp"
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#endif
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#endif
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