Enumerations

Enumerations
enum	{   Lower = 0x1, Upper = 0x2, UnitDiag = 0x4, ZeroDiag = 0x8,   UnitLower = UnitDiag|Lower, UnitUpper = UnitDiag|Upper, StrictlyLower = ZeroDiag|Lower, StrictlyUpper = ZeroDiag|Upper,   SelfAdjoint = 0x10 }
enum	{ Unaligned = 0, Aligned = 1 }
enum	{ ColMajor = 0, RowMajor = 0x1, AutoAlign = 0, DontAlign = 0x2 }
enum	{ OnTheLeft = 1, OnTheRight = 2 }
enum	AccessorLevels { ReadOnlyAccessors, WriteAccessors, DirectAccessors, DirectWriteAccessors }
enum	CornerType { TopLeft, TopRight, BottomLeft, BottomRight }
enum	DecompositionOptions {   Pivoting = 0x01, NoPivoting = 0x02, ComputeFullU = 0x04, ComputeThinU = 0x08,   ComputeFullV = 0x10, ComputeThinV = 0x20, EigenvaluesOnly = 0x40, ComputeEigenvectors = 0x80,   EigVecMask = EigenvaluesOnly | ComputeEigenvectors, Ax_lBx = 0x100, ABx_lx = 0x200, BAx_lx = 0x400,   GenEigMask = Ax_lBx | ABx_lx | BAx_lx }
enum	DirectionType { Vertical, Horizontal, BothDirections }
enum	QRPreconditioners { NoQRPreconditioner, HouseholderQRPreconditioner, ColPivHouseholderQRPreconditioner, FullPivHouseholderQRPreconditioner }
enum	TransformTraits { Isometry = 0x1, Affine = 0x2, AffineCompact = 0x10 | Affine, Projective = 0x20 }

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Detailed Description

Various enumerations used in Eigen. Many of these are used as template parameters.

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Enumeration Type Documentation

anonymous enum

Enum containing possible values for the Mode parameter of MatrixBase::selfadjointView() and MatrixBase::triangularView().

Enumerator:

Lower	View matrix as a lower triangular matrix.
Upper	View matrix as an upper triangular matrix.
UnitDiag	Matrix has ones on the diagonal; to be used in combination with Lower or Upper.
ZeroDiag	Matrix has zeros on the diagonal; to be used in combination with Lower or Upper.
UnitLower	View matrix as a lower triangular matrix with ones on the diagonal.
UnitUpper	View matrix as an upper triangular matrix with ones on the diagonal.
StrictlyLower	View matrix as a lower triangular matrix with zeros on the diagonal.
StrictlyUpper	View matrix as an upper triangular matrix with zeros on the diagonal.
SelfAdjoint	Used in BandMatrix and SelfAdjointView to indicate that the matrix is self-adjoint.

Definition at line 173 of file Constants.h.

anonymous enum

Enum for indicating whether an object is aligned or not.

Enumerator:

Unaligned	Object is not correctly aligned for vectorization.
Aligned	Object is aligned for vectorization.

Definition at line 196 of file Constants.h.

anonymous enum

Enum containing possible values for the _Options template parameter of Matrix, Array and BandMatrix.

Enumerator:

ColMajor	Storage order is column major (see Storage orders).
RowMajor	Storage order is row major (see Storage orders).
AutoAlign
DontAlign

Definition at line 263 of file Constants.h.

anonymous enum

Enum for specifying whether to apply or solve on the left or right.

Enumerator:

OnTheLeft	Apply transformation on the left.
OnTheRight	Apply transformation on the right.

Definition at line 276 of file Constants.h.

enum AccessorLevels

Used as template parameter in DenseCoeffBase and MapBase to indicate which accessors should be provided.

Enumerator:

ReadOnlyAccessors	Read-only access via a member function.
WriteAccessors	Read/write access via member functions.
DirectAccessors	Direct read-only access to the coefficients.
DirectWriteAccessors	Direct read/write access to the coefficients.

Definition at line 314 of file Constants.h.

enum CornerType

Enum used by DenseBase::corner() in Eigen2 compatibility mode.

Enumerator:

TopLeft
TopRight
BottomLeft
BottomRight

Definition at line 209 of file Constants.h.

enum DecompositionOptions

Enum with options to give to various decompositions.

Enumerator:

Pivoting
NoPivoting
ComputeFullU	Used in JacobiSVD to indicate that the square matrix U is to be computed.
ComputeThinU	Used in JacobiSVD to indicate that the thin matrix U is to be computed.
ComputeFullV	Used in JacobiSVD to indicate that the square matrix V is to be computed.
ComputeThinV	Used in JacobiSVD to indicate that the thin matrix V is to be computed.
EigenvaluesOnly	Used in SelfAdjointEigenSolver and GeneralizedSelfAdjointEigenSolver to specify that only the eigenvalues are to be computed and not the eigenvectors.
ComputeEigenvectors	Used in SelfAdjointEigenSolver and GeneralizedSelfAdjointEigenSolver to specify that both the eigenvalues and the eigenvectors are to be computed.
EigVecMask
Ax_lBx	Used in GeneralizedSelfAdjointEigenSolver to indicate that it should solve the generalized eigenproblem .
ABx_lx	Used in GeneralizedSelfAdjointEigenSolver to indicate that it should solve the generalized eigenproblem .
BAx_lx	Used in GeneralizedSelfAdjointEigenSolver to indicate that it should solve the generalized eigenproblem .
GenEigMask

Definition at line 327 of file Constants.h.

enum DirectionType

Enum containing possible values for the Direction parameter of Reverse, PartialReduxExpr and VectorwiseOp.

Enumerator:

Vertical	For Reverse, all columns are reversed; for PartialReduxExpr and VectorwiseOp, act on columns.
Horizontal	For Reverse, all rows are reversed; for PartialReduxExpr and VectorwiseOp, act on rows.
BothDirections	For Reverse, both rows and columns are reversed; not used for PartialReduxExpr and VectorwiseOp.

Definition at line 214 of file Constants.h.

enum QRPreconditioners

Possible values for the QRPreconditioner template parameter of JacobiSVD.

Enumerator:

NoQRPreconditioner	Do not specify what is to be done if the SVD of a non-square matrix is asked for.
HouseholderQRPreconditioner	Use a QR decomposition without pivoting as the first step.
ColPivHouseholderQRPreconditioner	Use a QR decomposition with column pivoting as the first step.
FullPivHouseholderQRPreconditioner	Use a QR decomposition with full pivoting as the first step.

Definition at line 363 of file Constants.h.

enum TransformTraits

Enum used to specify how a particular transformation is stored in a matrix.

See also:

Transform, Hyperplane::transform().

Enumerator:

Isometry	Transformation is an isometry.
Affine	Transformation is an affine transformation stored as a (Dim+1)^2 matrix whose last row is assumed to be [0 ... 0 1].
AffineCompact	Transformation is an affine transformation stored as a (Dim) x (Dim+1) matrix.
Projective	Transformation is a general projective transformation stored as a (Dim+1)^2 matrix.

Definition at line 392 of file Constants.h.