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add a generic mechanism to copy a special matrix to a dense matrix so that

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we don't need to add other specialization of MatrixBase::operator=, Matrix::=,
and Matrix::Matrix(...)
This commit is contained in:
Gael Guennebaud
2009-07-07 09:05:20 +02:00
parent 1aea45335f
commit 544888e342
6 changed files with 54 additions and 113 deletions
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28
Eigen/src/Sparse/SparseMatrixBase.h
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@@ -451,25 +451,19 @@ template<typename Derived> class SparseMatrixBase
// Derived& setRandom();
// Derived& setIdentity();
template<typename DenseDerived>
void evalToDense(MatrixBase<DenseDerived>& dst)
{
dst.resize(rows(),cols());
dst.setZero();
for (int j=0; j<outerSize(); ++j)
for (typename Derived::InnerIterator i(derived(),j); i; ++i)
res.coeffRef(i.row(),i.col()) = i.value();
}
Matrix<Scalar,RowsAtCompileTime,ColsAtCompileTime> toDense() const
{
Matrix<Scalar,RowsAtCompileTime,ColsAtCompileTime> res(rows(),cols());
res.setZero();
for (int j=0; j<outerSize(); ++j)
{
for (typename Derived::InnerIterator i(derived(),j); i; ++i)
{
if(IsRowMajor)
std::cerr << i.row() << "," << i.col() << " == " << j << "," << i.index() << "\n";
else
std::cerr << i.row() << "," << i.col() << " == " << i.index() << "," << j << "\n";
// if(IsRowMajor)
res.coeffRef(i.row(),i.col()) = i.value();
// else
// res.coeffRef(i.index(),j) = i.value();
}
}
return res;
return derived();
}
template<typename OtherDerived>