Ceylan::Maths::Linear::Matrix2 Class Reference

#include <CeylanMatrix2.h>

Inheritance diagram for Ceylan::Maths::Linear::Matrix2:

Collaboration diagram for Ceylan::Maths::Linear::Matrix2:

Public Types
enum	TextOutputFormat { rawText, html }
	Defines what text output formats for TextDisplayable instances are available. More...
Public Member Functions
	Matrix2 (Real x0=0, Real x1=0, Real y0=0, Real y1=0)
	Constructs a new 2x2 matrix with specified elements.
	Matrix2 (const Matrix2 &source)
	Copy constructor.
virtual	~Matrix2 () throw ()
	Basic virtual destructor.
virtual void	setTo (Real x0=0, Real x1=0, Real y0=0, Real y1=0)
	Reassigns all matrix elements.
virtual void	setColumn (MatrixIndex columnNumber, const Vector2 &newColumn)
	Reassigns specified column of this matrix.
virtual void	setAllElementsTo (Real commonValue)
	Sets this matrix so that all its elements equal commonValue.
virtual Real	getElementAt (MatrixIndex abscissa, MatrixIndex ordinate) const
	Returns indexed element.
virtual void	setElementAt (MatrixIndex abscissa, MatrixIndex ordinate, Real newValue)
	Sets indexed element to specified value.
virtual void	setToIdentity ()
	Sets this matrix to the identity matrix.
virtual void	setToDiagonal (Real diagonalTerm)
	Sets this matrix to the a diagonal matrix whose diagonal term is diagonalTerm.
virtual void	transpose ()
	Tranposes this matrix.
virtual Real	trace () const
	Computes this matrix's trace.
virtual Real	determinant () const
	Computes this matrix's determinant.
virtual const std::string	toString (VerbosityLevels level=high) const
	Returns a user-friendly description of the state of this object.
virtual void	nullify ()
	Sets this matrix to the null matrix (all elements zeroed).
Static Public Member Functions
static Matrix2	Cofactor (const Matrix2 &m)
	Returns the cofactor matrix.
static Matrix2	Adjoint (const Matrix2 &m)
	Returns the adjoint matrix.
static Matrix2	CreateFromRotation (AngleInDegrees angle)
	Returns the matrix corresponding to the specified rotation.
template<typename T >
static Matrix2	CreateFrom (T endomorphism)
	Returns the matrix corresponding to specified endomorphism.
static const std::string	ToString (std::list< TextDisplayable * > displayables, Ceylan::VerbosityLevels level=Ceylan::high)
	Returns a user-friendly description of this list of pointers to text displayable instances.
static TextOutputFormat	GetOutputFormat ()
	Returns the current overall text format to be used by TextDisplayable instances.
static void	SetOutputFormat (TextOutputFormat newOutputFormat)
	Sets the current overall text format to be used by TextDisplayable instances.
Static Public Attributes
static const MatrixIndex	Dimensions = 2
	Tells what is the dimension for this Matrix.
Protected Attributes
Real	_mat [Dimensions][Dimensions]
	The nine coordinates of this matrix.
Static Protected Attributes
static TextOutputFormat	_OutputFormat = rawText
	The text format to be used currently by TextDisplayable instances.
Friends
class	Bipoint
	Must access to each other's coordinates.
class	Vector2
	Must access to each other's coordinates.
CEYLAN_DLL friend bool	operator== (const Matrix2 &m1, const Matrix2 &m2)
	Tells whether the two matrices have the same elements.
CEYLAN_DLL friend bool	operator!= (const Matrix2 &m1, const Matrix2 &m2)
	Tells whether the two matrices are different.
CEYLAN_DLL friend Matrix2	operator+ (const Matrix2 &m1, const Matrix2 &m2)
	Adds two matrices: result = m1 + m2.
CEYLAN_DLL friend Matrix2	operator- (const Matrix2 &m1, const Matrix2 &m2)
	Substracts two matrices: result = m1 - m2.
CEYLAN_DLL friend Matrix2	operator* (const Matrix2 &m1, const Matrix2 &m2)
	Multiplies two matrices: result = m1 * m2.
CEYLAN_DLL friend Matrix2	operator* (Real lambda, const Matrix2 &m)
	Multiplies a matrix by a scalar: result = lambda * m.
CEYLAN_DLL friend Matrix2	operator! (const Matrix2 &m)
	Returns the inverse (reciproqual) of specified matrix, if possible.
CEYLAN_DLL friend Matrix2	operator~ (const Matrix2 &m)
	Returns the transposed matrix corresponding to this matrix.
CEYLAN_DLL friend Vector2	operator* (const Matrix2 &m, const Vector2 &v)
	Multiplies a matrix by a vector: result = m * v.

Detailed Description

Definition at line 78 of file CeylanMatrix2.h.

Member Enumeration Documentation

enum Ceylan::TextDisplayable::TextOutputFormat [inherited]

Defines what text output formats for TextDisplayable instances are available.

Enumerator:

rawText
html

Definition at line 124 of file CeylanTextDisplayable.h.

Constructor & Destructor Documentation

Matrix2::Matrix2	(	Real	x0 = `0`,
		Real	x1 = `0`,
		Real	y0 = `0`,
		Real	y1 = `0`
	)			`[explicit]`

Constructs a new 2x2 matrix with specified elements.

Note:: If no argument is specified, constructs the null matrix.

Definition at line 66 of file CeylanMatrix2.cc.

References _mat.

Matrix2::Matrix2 ( const Matrix2 & source )

Copy constructor.

Note:: Cannot be 'explicit', as it would prevent the multiply operator Matrix2 m = m1 * m2. to return a Matrix2 on the stack.

Definition at line 78 of file CeylanMatrix2.cc.

References _mat, and Dimensions.

Matrix2::~Matrix2 ( ) throw () [virtual]

Basic virtual destructor.

Definition at line 90 of file CeylanMatrix2.cc.

Member Function Documentation

Matrix2 Matrix2::Adjoint ( const Matrix2 & m ) [static]

Returns the adjoint matrix.

Definition at line 313 of file CeylanMatrix2.cc.

References Cofactor(), and transpose().

Matrix2 Matrix2::Cofactor ( const Matrix2 & m ) [static]

Returns the cofactor matrix.

Definition at line 297 of file CeylanMatrix2.cc.

References _mat.

Referenced by Adjoint().

template<typename T >

static Matrix2 Ceylan::Maths::Linear::Matrix2::CreateFrom ( T endomorphism ) [inline, static]

Returns the matrix corresponding to specified endomorphism.

Parameters:

endomorphism

can be a functor (ex: Endomorphism2DFunctor) or a simple function: Vector2 -> Vector.

Note:: C++ does not allow virtual template method.

Definition at line 365 of file CeylanMatrix2.h.

References setColumn(), and Ceylan::Maths::Linear::Vector2::setTo().

Referenced by CreateFromRotation().

Matrix2 Matrix2::CreateFromRotation ( AngleInDegrees angle ) [static]

Returns the matrix corresponding to the specified rotation.

Parameters:

angle

in degrees

Definition at line 326 of file CeylanMatrix2.cc.

References CreateFrom().

Referenced by Ceylan::Maths::Linear::HomogeneousMatrix3::HomogeneousMatrix3().

Real Matrix2::determinant ( ) const [virtual]

Computes this matrix's determinant.

Implements Ceylan::Maths::Linear::Matrix.

Definition at line 224 of file CeylanMatrix2.cc.

References _mat.

Referenced by Ceylan::Maths::Linear::operator!().

Real Matrix2::getElementAt	(	MatrixIndex	abscissa,
		MatrixIndex	ordinate
	)			const `[virtual]`

Returns indexed element.

Index ranges from 0 to Dimensions-1 for both dimensions.

Exceptions:

MathsException

if index is out of bounds and if in debug mode.

Implements Ceylan::Maths::Linear::Matrix.

Definition at line 130 of file CeylanMatrix2.cc.

References _mat, and Dimensions.

Referenced by Ceylan::Maths::Linear::HomogeneousMatrix3::setRotationMatrix().

TextDisplayable::TextOutputFormat TextDisplayable::GetOutputFormat ( ) [static, inherited]

Returns the current overall text format to be used by TextDisplayable instances.

Definition at line 63 of file CeylanTextDisplayable.cc.

References Ceylan::TextDisplayable::_OutputFormat.

Referenced by Ceylan::formatStringList(), Ceylan::formatStringMap(), Ceylan::XML::XMLMarkup::toString(), Ceylan::Maths::Linear::Vector3::toString(), Ceylan::Maths::Linear::Vector2::toString(), Ceylan::Maths::Linear::Tripoint::toString(), Ceylan::Module::toString(), Ceylan::Maths::Linear::Matrix3::toString(), toString(), Ceylan::Maths::Linear::HomogeneousMatrix3::toString(), and Ceylan::Maths::Linear::Bipoint::toString().

void Matrix::nullify ( ) [virtual, inherited]

Sets this matrix to the null matrix (all elements zeroed).

Definition at line 53 of file CeylanMatrix.cc.

References Ceylan::Maths::Linear::Matrix::setAllElementsTo().

void Matrix2::setAllElementsTo ( Real commonValue ) [virtual]

Sets this matrix so that all its elements equal commonValue.

Implements Ceylan::Maths::Linear::Matrix.

Definition at line 119 of file CeylanMatrix2.cc.

References _mat, and Dimensions.

void Matrix2::setColumn	(	MatrixIndex	columnNumber,
		const Vector2 &	newColumn
	)			`[virtual]`

Reassigns specified column of this matrix.

Note:: Column numbers range from 0 to 2 (included).

Definition at line 109 of file CeylanMatrix2.cc.

References _mat, Ceylan::Maths::Linear::Vector2::_vec, and Dimensions.

Referenced by CreateFrom().

void Matrix2::setElementAt	(	MatrixIndex	abscissa,
		MatrixIndex	ordinate,
		Real	newValue
	)			`[virtual]`

Sets indexed element to specified value.

Index ranges from 0 to Dimensions-1 for both dimensions.

Exceptions:

MathsException

if index is out of bounds and if in debug mode.

Implements Ceylan::Maths::Linear::Matrix.

Definition at line 146 of file CeylanMatrix2.cc.

References _mat, and Dimensions.

void TextDisplayable::SetOutputFormat ( TextOutputFormat newOutputFormat ) [static, inherited]

Sets the current overall text format to be used by TextDisplayable instances.

Parameters:

newOutputFormat

the new output format.

Definition at line 72 of file CeylanTextDisplayable.cc.

References Ceylan::TextDisplayable::_OutputFormat.

Referenced by Ceylan::Log::LogHolder::LogHolder().

void Matrix2::setTo	(	Real	x0 = `0`,
		Real	x1 = `0`,
		Real	y0 = `0`,
		Real	y1 = `0`
	)			`[virtual]`

Reassigns all matrix elements.

Definition at line 97 of file CeylanMatrix2.cc.

References _mat.

void Matrix2::setToDiagonal ( Real diagonalTerm ) [virtual]

Sets this matrix to the a diagonal matrix whose diagonal term is diagonalTerm.

Implements Ceylan::Maths::Linear::Matrix.

Definition at line 171 of file CeylanMatrix2.cc.

References _mat, and Dimensions.

Referenced by setToIdentity().

void Matrix2::setToIdentity ( ) [virtual]

Sets this matrix to the identity matrix.

Reimplemented from Ceylan::Maths::Linear::Matrix.

Definition at line 163 of file CeylanMatrix2.cc.

References setToDiagonal().

const std::string TextDisplayable::ToString	(	std::list< TextDisplayable * >	displayables,
		Ceylan::VerbosityLevels	level = `Ceylan::high`
	)			`[static, inherited]`