10 #ifndef EIGEN_REPLICATE_H
11 #define EIGEN_REPLICATE_H
31 template<
typename MatrixType,
int RowFactor,
int ColFactor>
32 struct traits<Replicate<MatrixType,RowFactor,ColFactor> >
35 typedef typename MatrixType::Scalar Scalar;
36 typedef typename traits<MatrixType>::StorageKind StorageKind;
37 typedef typename traits<MatrixType>::XprKind XprKind;
41 typedef typename nested<MatrixType,Factor>::type MatrixTypeNested;
42 typedef typename remove_reference<MatrixTypeNested>::type _MatrixTypeNested;
44 RowsAtCompileTime = RowFactor==
Dynamic || int(MatrixType::RowsAtCompileTime)==
Dynamic
46 : RowFactor * MatrixType::RowsAtCompileTime,
47 ColsAtCompileTime = ColFactor==
Dynamic || int(MatrixType::ColsAtCompileTime)==
Dynamic
49 : ColFactor * MatrixType::ColsAtCompileTime,
51 MaxRowsAtCompileTime = RowsAtCompileTime,
52 MaxColsAtCompileTime = ColsAtCompileTime,
53 IsRowMajor = MaxRowsAtCompileTime==1 && MaxColsAtCompileTime!=1 ? 1
54 : MaxColsAtCompileTime==1 && MaxRowsAtCompileTime!=1 ? 0
57 CoeffReadCost = _MatrixTypeNested::CoeffReadCost
62 template<
typename MatrixType,
int RowFactor,
int ColFactor>
class Replicate
63 :
public internal::dense_xpr_base< Replicate<MatrixType,RowFactor,ColFactor> >::type
65 typedef typename internal::traits<Replicate>::MatrixTypeNested MatrixTypeNested;
66 typedef typename internal::traits<Replicate>::_MatrixTypeNested _MatrixTypeNested;
69 typedef typename internal::dense_xpr_base<Replicate>::type Base;
72 template<
typename OriginalMatrixType>
73 inline explicit Replicate(
const OriginalMatrixType& matrix)
74 : m_matrix(matrix), m_rowFactor(RowFactor), m_colFactor(ColFactor)
76 EIGEN_STATIC_ASSERT((internal::is_same<
typename internal::remove_const<MatrixType>::type,OriginalMatrixType>::value),
77 THE_MATRIX_OR_EXPRESSION_THAT_YOU_PASSED_DOES_NOT_HAVE_THE_EXPECTED_TYPE)
81 template<
typename OriginalMatrixType>
82 inline Replicate(
const OriginalMatrixType& matrix, Index rowFactor, Index colFactor)
83 : m_matrix(matrix), m_rowFactor(rowFactor), m_colFactor(colFactor)
85 EIGEN_STATIC_ASSERT((internal::is_same<
typename internal::remove_const<MatrixType>::type,OriginalMatrixType>::value),
86 THE_MATRIX_OR_EXPRESSION_THAT_YOU_PASSED_DOES_NOT_HAVE_THE_EXPECTED_TYPE)
89 inline Index rows()
const {
return m_matrix.rows() * m_rowFactor.value(); }
90 inline Index cols()
const {
return m_matrix.cols() * m_colFactor.value(); }
92 inline Scalar coeff(Index row, Index col)
const
95 const Index actual_row = internal::traits<MatrixType>::RowsAtCompileTime==1 ? 0
97 : row%m_matrix.rows();
98 const Index actual_col = internal::traits<MatrixType>::ColsAtCompileTime==1 ? 0
100 : col%m_matrix.cols();
102 return m_matrix.coeff(actual_row, actual_col);
104 template<
int LoadMode>
105 inline PacketScalar packet(Index row, Index col)
const
107 const Index actual_row = internal::traits<MatrixType>::RowsAtCompileTime==1 ? 0
109 : row%m_matrix.rows();
110 const Index actual_col = internal::traits<MatrixType>::ColsAtCompileTime==1 ? 0
112 : col%m_matrix.cols();
114 return m_matrix.template packet<LoadMode>(actual_row, actual_col);
117 const _MatrixTypeNested& nestedExpression()
const
123 MatrixTypeNested m_matrix;
124 const internal::variable_if_dynamic<Index, RowFactor> m_rowFactor;
125 const internal::variable_if_dynamic<Index, ColFactor> m_colFactor;
136 template<
typename Derived>
137 template<
int RowFactor,
int ColFactor>
152 template<
typename Derived>
167 template<
typename ExpressionType,
int Direction>
177 #endif // EIGEN_REPLICATE_H