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extend PermutationMatrix and Transpositions to support arbitrary interger types and to support the Map/Wrapper model via base and derived classes

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This commit is contained in:
Gael Guennebaud
2011-01-26 16:33:23 +01:00
parent 84448b058c
commit 15ef62ca43
6 changed files with 656 additions and 272 deletions
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11
test/permutationmatrices.cpp
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@@ -51,8 +51,10 @@ template<typename MatrixType> void permutationmatrices(const MatrixType& m)
Options = MatrixType::Options };
typedef PermutationMatrix<Rows> LeftPermutationType;
typedef Matrix<int, Rows, 1> LeftPermutationVectorType;
typedef Map<LeftPermutationType> MapLeftPerm;
typedef PermutationMatrix<Cols> RightPermutationType;
typedef Matrix<int, Cols, 1> RightPermutationVectorType;
typedef Map<RightPermutationType> MapRightPerm;
Index rows = m.rows();
Index cols = m.cols();
@@ -76,13 +78,20 @@ template<typename MatrixType> void permutationmatrices(const MatrixType& m)
VERIFY_IS_APPROX(m_permuted, lm*m_original*rm);
VERIFY_IS_APPROX(lp.inverse()*m_permuted*rp.inverse(), m_original);
VERIFY_IS_APPROX(lv.asPermutation().inverse()*m_permuted*rv.asPermutation().inverse(), m_original);
VERIFY_IS_APPROX(MapLeftPerm(lv.data(),lv.size()).inverse()*m_permuted*MapRightPerm(rv.data(),rv.size()).inverse(), m_original);
VERIFY((lp*lp.inverse()).toDenseMatrix().isIdentity());
VERIFY((lv.asPermutation()*lv.asPermutation().inverse()).toDenseMatrix().isIdentity());
VERIFY((MapLeftPerm(lv.data(),lv.size())*MapLeftPerm(lv.data(),lv.size()).inverse()).toDenseMatrix().isIdentity());
LeftPermutationVectorType lv2;
randomPermutationVector(lv2, rows);
LeftPermutationType lp2(lv2);
Matrix<Scalar,Rows,Rows> lm2(lp2);
VERIFY_IS_APPROX((lp*lp2).toDenseMatrix().template cast<Scalar>(), lm*lm2);
VERIFY_IS_APPROX((lv.asPermutation()*lv2.asPermutation()).toDenseMatrix().template cast<Scalar>(), lm*lm2);
VERIFY_IS_APPROX((MapLeftPerm(lv.data(),lv.size())*MapLeftPerm(lv2.data(),lv2.size())).toDenseMatrix().template cast<Scalar>(), lm*lm2);
LeftPermutationType identityp;
identityp.setIdentity(rows);
@@ -123,7 +132,7 @@ template<typename MatrixType> void permutationmatrices(const MatrixType& m)
rm = rp;
rm.col(i).swap(rm.col(j));
VERIFY_IS_APPROX(rm, rp2.toDenseMatrix().template cast<Scalar>());
}
}
}
void test_permutationmatrices()