29 lines
748 B
C++
29 lines
748 B
C++
#ifndef IGL_FIND_ZERO_H
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#define IGL_FIND_ZERO_H
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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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// Find the first zero (whether implicit or explicitly stored) in the
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// rows/columns of a matrix.
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// Inputs:
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// A m by n sparse matrix
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// dim dimension along which to check for any (1 or 2)
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// Output:
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// I n-long vector (if dim == 1) {m means no zeros found}
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// or
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// I m-long vector (if dim == 2) {n means no zeros found}
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//
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template <typename AType, typename DerivedI>
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IGL_INLINE void find_zero(
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const Eigen::SparseMatrix<AType> & A,
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const int dim,
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Eigen::PlainObjectBase<DerivedI> & I);
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}
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#ifndef IGL_STATIC_LIBRARY
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# include "find_zero.cpp"
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#endif
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#endif
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