A MatrixCharacter is a set containing a value for each of the matrix characteristics except element type, which is part of the templatized declaration of a Matrix_, Vector_, or RowVector_ handle. More...

Inheritance diagram for SimTK::MatrixCharacter:

Classes
class	LapackFull
	Predefined MatrixCharacter for an ordinary Lapack-style full matrix of a particular dimension m x n (nrows X ncols). More...

class	Mask
	This class collects masks of each characteristic type for representing sets of accceptable characteristics. More...

class	RowVector
	Predefined MatrixCharacter for an ordinary row vector of a particular size. More...

class	Vector
	Predefined MatrixCharacter for an ordinary column vector of a particular size. More...

Public Member Functions
	MatrixCharacter ()
	Default constructor sets lengths to zero and the other characteristics to "none specified". More...

MatrixCharacter &	setToNone ()
	Restore this MatrixCharacter to its default-constructed state of "none". More...

int	nrow () const
	These are dimensions of the logical matrix and have nothing to do with how much storage may be used to hold the elements. More...

int	ncol () const

std::pair< int, int >	getSize () const

ptrdiff_t	nelt () const

int	getLowerBandwidth () const

int	getUpperBandwidth () const

std::pair< int, int >	getBandwidth () const

const MatrixStructure &	getStructure () const

const MatrixStorage &	getStorage () const

const MatrixOutline &	getOutline () const

const MatrixCondition &	getCondition () const

MatrixStructure &	updStructure ()

MatrixStorage &	updStorage ()

MatrixOutline &	updOutline ()

MatrixCondition &	updCondition ()

MatrixCharacter &	setStructure (const MatrixStructure &sa)

MatrixCharacter &	setStorage (const MatrixStorage &sa)

MatrixCharacter &	setOutline (const MatrixOutline &oa)

MatrixCharacter &	setCondition (const MatrixCondition &ca)

MatrixCharacter &	setActualSize (int m, int n)
	Set the actual size and update the outline to match. More...

MatrixCharacter &	setActualNumRows (int m)

MatrixCharacter &	setActualNumCols (int n)

MatrixCharacter &	setBandwidth (int lb, int ub)

MatrixCharacter &	setLowerBandwidth (int lb)

MatrixCharacter &	setUpperBandwidth (int ub)

Protected Member Functions
	MatrixCharacter (int m, int n, int lb, int ub, MatrixStructure structure, MatrixStorage storage, MatrixCondition condition)

Protected Attributes
int	nr
	actual number of rows More...

int	nc
	actual number of columns More...

int	lband
	actual lower bandwidth, if banded More...

int	uband
	actual upper bandwidth, if banded More...

MatrixStructure	structure

MatrixStorage	storage

MatrixOutline	outline

MatrixCondition	condition

Related Functions
(Note that these are not member functions.)
std::ostream &	operator<< (std::ostream &o, const MatrixCharacter &)
	Output a textual description of a MatrixCharacter; handy for debugging. More...

Detailed Description

A MatrixCharacter is a set containing a value for each of the matrix characteristics except element type, which is part of the templatized declaration of a Matrix_, Vector_, or RowVector_ handle.

MatrixCharacters are used both as the handle "commitment", setting restrictions on what kinds of matrices a handle can reference, and as the "facts on the ground" current character of the matrix being referenced. The current character must always satisfy the character commitment.

Matrix characteristics are specifications of particular aspects of matrices:

Element type
Size
Structure
Storage format
Outline
Conditioning

Collectively, the set of values for the above properties is called a matrix character. A matrix character can be used to describe an existing matrix, or a character mask can be used to describe the range of characteristics that a matrix handle may support. The character mask describing the acceptable matrices for a matrix handle is called the handle's character commitment or just the handle commitment. The character describing an existing matrix is called the actual character of that matrix. Thus there are always two sets of characteristics associated with a matrix: the handle's commitment, and the actual character of the matrix to which the handle currently refers. The actual character must always satisfy the character commitment.

When a handle presents a view into another handle's data, it is the characteristics of the matrix as seen through the view that must satisfy the handle's character commitment. So for example, a view showing one column of a full matrix satisfies a "column" outline commitment.

Element type for a matrix handle is always determined at compile time via the template argument used in the declaration. For example, a matrix handle declared Matrix_<Vec3> can only hold matrices whose elements are Vec3s. Also, recall that Matrix is an abbreviation for Matrix_<Real> so that declaration commits the matrix handle to Real-element matrices. Element type is the only matrix characteristic for which no matrix handle can remain uncommitted. However, different handles can provide views of the same data through which that data is seen to contain different element types.

Each matrix characteristic other than sizes is represented by a class defining one or more enumerated types, where individual characteristics are assigned a single bit. Then an appropriate mask type (an unsigned integral type) is defined which can represent a set of allowable characteristics. The actual character of a matrix is represented via enumeration values; the character commitment is represented by the compatible masks. The operation of determining whether a particular actual character satisfies a handle commitment can then be performed very quickly via bitwise logical operations.

Constructor & Destructor Documentation

SimTK::MatrixCharacter::MatrixCharacter ( )

inline

Default constructor sets lengths to zero and the other characteristics to "none specified".

SimTK::MatrixCharacter::MatrixCharacter	(	int	m,
		int	n,
		int	lb,
		int	ub,
		MatrixStructure	structure,
		MatrixStorage	storage,
		MatrixCondition	condition
	)

inlineprotected

Member Function Documentation

MatrixCharacter& SimTK::MatrixCharacter::setToNone ( )

inline

Restore this MatrixCharacter to its default-constructed state of "none".

int SimTK::MatrixCharacter::nrow ( ) const

inline

These are dimensions of the logical matrix and have nothing to do with how much storage may be used to hold the elements.

int SimTK::MatrixCharacter::ncol ( ) const

inline

std::pair<int,int> SimTK::MatrixCharacter::getSize ( ) const

inline

ptrdiff_t SimTK::MatrixCharacter::nelt ( ) const

inline

int SimTK::MatrixCharacter::getLowerBandwidth ( ) const

inline

int SimTK::MatrixCharacter::getUpperBandwidth ( ) const

inline

std::pair<int,int> SimTK::MatrixCharacter::getBandwidth ( ) const

inline

const MatrixStructure& SimTK::MatrixCharacter::getStructure ( ) const

inline

const MatrixStorage& SimTK::MatrixCharacter::getStorage ( ) const

inline

const MatrixOutline& SimTK::MatrixCharacter::getOutline ( ) const

inline

const MatrixCondition& SimTK::MatrixCharacter::getCondition ( ) const

inline

MatrixStructure& SimTK::MatrixCharacter::updStructure ( )

inline

MatrixStorage& SimTK::MatrixCharacter::updStorage ( )

inline

MatrixOutline& SimTK::MatrixCharacter::updOutline ( )

inline

MatrixCondition& SimTK::MatrixCharacter::updCondition ( )

inline

MatrixCharacter& SimTK::MatrixCharacter::setStructure ( const MatrixStructure & sa )

inline

MatrixCharacter& SimTK::MatrixCharacter::setStorage ( const MatrixStorage & sa )

inline

MatrixCharacter& SimTK::MatrixCharacter::setOutline ( const MatrixOutline & oa )

inline

MatrixCharacter& SimTK::MatrixCharacter::setCondition ( const MatrixCondition & ca )

inline

MatrixCharacter& SimTK::MatrixCharacter::setActualSize	(	int	m,
		int	n
	)

inline

Set the actual size and update the outline to match.

MatrixCharacter& SimTK::MatrixCharacter::setActualNumRows ( int m )

inline

MatrixCharacter& SimTK::MatrixCharacter::setActualNumCols ( int n )

inline

MatrixCharacter& SimTK::MatrixCharacter::setBandwidth	(	int	lb,
		int	ub
	)

inline

MatrixCharacter& SimTK::MatrixCharacter::setLowerBandwidth ( int lb )

inline

MatrixCharacter& SimTK::MatrixCharacter::setUpperBandwidth ( int ub )

inline

Friends And Related Function Documentation

std::ostream & operator<<	(	std::ostream &	o,
		const MatrixCharacter &
	)

Member Data Documentation

int SimTK::MatrixCharacter::nr

protected

actual number of rows

int SimTK::MatrixCharacter::nc

protected

actual number of columns

int SimTK::MatrixCharacter::lband

protected

actual lower bandwidth, if banded

int SimTK::MatrixCharacter::uband

protected

actual upper bandwidth, if banded

MatrixStructure SimTK::MatrixCharacter::structure

protected

MatrixStorage SimTK::MatrixCharacter::storage

protected

MatrixOutline SimTK::MatrixCharacter::outline

protected

MatrixCondition SimTK::MatrixCharacter::condition

protected

The documentation for this class was generated from the following file:

MatrixCharacteristics.h

Classes

Public Member Functions

Protected Member Functions

Protected Attributes

Related Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation