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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.
77 lines
2.5 KiB
C++
77 lines
2.5 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_FIND_H
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#define IGL_FIND_H
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#include "igl_inline.h"
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#define EIGEN_YES_I_KNOW_SPARSE_MODULE_IS_NOT_STABLE_YET
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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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// Find the non-zero entries and there respective indices in a sparse matrix.
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// Like matlab's [I,J,V] = find(X)
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//
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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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// Input:
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// X m by n matrix whose entries are to be found
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// Outputs:
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// I nnz vector of row indices of non zeros entries in X
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// J nnz vector of column indices of non zeros entries in X
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// V nnz vector of type T non-zeros entries in X
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//
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template <
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typename T,
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typename DerivedI,
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typename DerivedJ,
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typename DerivedV>
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IGL_INLINE void find(
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const Eigen::SparseMatrix<T>& X,
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Eigen::DenseBase<DerivedI> & I,
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Eigen::DenseBase<DerivedJ> & J,
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Eigen::DenseBase<DerivedV> & V);
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template <
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typename DerivedX,
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typename DerivedI,
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typename DerivedJ,
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typename DerivedV>
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IGL_INLINE void find(
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const Eigen::DenseBase<DerivedX>& X,
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Eigen::PlainObjectBase<DerivedI> & I,
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Eigen::PlainObjectBase<DerivedJ> & J,
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Eigen::PlainObjectBase<DerivedV> & V);
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template <
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typename DerivedX,
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typename DerivedI>
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IGL_INLINE void find(
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const Eigen::DenseBase<DerivedX>& X,
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Eigen::PlainObjectBase<DerivedI> & I);
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// Find the non-zero entries and there respective indices in a sparse vector.
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// Similar to matlab's [I,J,V] = find(X), but instead of [I,J] being
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// subscripts into X, since X is a vector we just return I, a list of indices
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// into X
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//
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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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// Input:
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// X vector whose entries are to be found
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// Outputs:
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// I nnz vector of indices of non zeros entries in X
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// V nnz vector of type T non-zeros entries in X
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template <typename T>
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IGL_INLINE void find(
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const Eigen::SparseVector<T>& X,
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Eigen::Matrix<int,Eigen::Dynamic,1> & I,
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Eigen::Matrix<T,Eigen::Dynamic,1> & V);
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "find.cpp"
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#endif
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#endif
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