Contents

• Public Functions
• Related Non-Members
• Detailed Description

Detailed Description

The QGenericMatrix class is a template class that represents a NxM transformation matrix with N columns and M rows.

The QGenericMatrix template has three parameters:

Member Function Documentation

QGenericMatrix::QGenericMatrix()

Constructs a NxM identity matrix.

QGenericMatrix::QGenericMatrix(const QGenericMatrix <N, M, T> & other)

Constructs a copy of other.

QGenericMatrix::QGenericMatrix(const T * values)

Constructs a matrix from the given N * M floating-point values. The contents of the array values is assumed to be in row-major order.

See also copyDataTo().

const T * QGenericMatrix::constData() const

Returns a constant pointer to the raw data of this matrix.

See also data().

void QGenericMatrix::copyDataTo(T * values) const

Retrieves the N * M items in this matrix and copies them to values in row-major order.

T * QGenericMatrix::data()

Returns a pointer to the raw data of this matrix.

See also constData().

const T * QGenericMatrix::data() const

Returns a constant pointer to the raw data of this matrix.

See also constData().

void QGenericMatrix::fill(T value)

Fills all elements of this matrix with value.

bool QGenericMatrix::isIdentity() const

Returns true if this matrix is the identity; false otherwise.

See also setToIdentity().

void QGenericMatrix::setToIdentity()

Sets this matrix to the identity.

See also isIdentity().

QGenericMatrix <M, N, T> QGenericMatrix::transposed() const

Returns this matrix, transposed about its diagonal.

bool QGenericMatrix::operator!=(const QGenericMatrix <N, M, T> & other) const

Returns true if this matrix is not identical to other; false otherwise.

const T & QGenericMatrix::operator()(int row, int column) const

Returns a constant reference to the element at position (row, column) in this matrix.

T & QGenericMatrix::operator()(int row, int column)

Returns a reference to the element at position (row, column) in this matrix so that the element can be assigned to.

QGenericMatrix <N, M, T> & QGenericMatrix::operator*=(T factor)

Multiplies all elements of this matrix by factor.

QGenericMatrix <N, M, T> & QGenericMatrix::operator+=(const QGenericMatrix <N, M, T> & other)

Adds the contents of other to this matrix.

QGenericMatrix <N, M, T> & QGenericMatrix::operator-=(const QGenericMatrix <N, M, T> & other)

Subtracts the contents of other from this matrix.

QGenericMatrix <N, M, T> & QGenericMatrix::operator/=(T divisor)

Divides all elements of this matrix by divisor.

bool QGenericMatrix::operator==(const QGenericMatrix <N, M, T> & other) const

Returns true if this matrix is identical to other; false otherwise.

Related Non-Members

typedef QMatrix2x2

The QMatrix2x2 type defines a convenient instantiation of the QGenericMatrix template for 2 columns, 2 rows, and qreal as the element type.

typedef QMatrix2x3

The QMatrix2x3 type defines a convenient instantiation of the QGenericMatrix template for 2 columns, 3 rows, and qreal as the element type.

typedef QMatrix2x4

The QMatrix2x4 type defines a convenient instantiation of the QGenericMatrix template for 2 columns, 4 rows, and qreal as the element type.

typedef QMatrix3x2

The QMatrix3x2 type defines a convenient instantiation of the QGenericMatrix template for 3 columns, 2 rows, and qreal as the element type.

typedef QMatrix3x3

The QMatrix3x3 type defines a convenient instantiation of the QGenericMatrix template for 3 columns, 3 rows, and qreal as the element type.

typedef QMatrix3x4

The QMatrix3x4 type defines a convenient instantiation of the QGenericMatrix template for 3 columns, 4 rows, and qreal as the element type.

typedef QMatrix4x2

The QMatrix4x2 type defines a convenient instantiation of the QGenericMatrix template for 4 columns, 2 rows, and qreal as the element type.

typedef QMatrix4x3

The QMatrix4x3 type defines a convenient instantiation of the QGenericMatrix template for 4 columns, 3 rows, and qreal as the element type.

QGenericMatrix <M1, M2, T> operator*(const QGenericMatrix <N, M2, T> & m1, const QGenericMatrix <M1, N, T> & m2)

Returns the product of the NxM2 matrix m1 and the M1xN matrix m2 to produce a M1xM2 matrix result.

QGenericMatrix <N, M, T> operator*(T factor, const QGenericMatrix <N, M, T> & matrix)

Returns the result of multiplying all elements of matrix by factor.

QGenericMatrix <N, M, T> operator*(const QGenericMatrix <N, M, T> & matrix, T factor)

Returns the result of multiplying all elements of matrix by factor.

QGenericMatrix <N, M, T> operator+(const QGenericMatrix <N, M, T> & m1, const QGenericMatrix <N, M, T> & m2)

Returns the sum of m1 and m2.

QGenericMatrix <N, M, T> operator-(const QGenericMatrix <N, M, T> & m1, const QGenericMatrix <N, M, T> & m2)

Returns the difference of m1 and m2.

QGenericMatrix <N, M, T> operator-(const QGenericMatrix <N, M, T> & matrix)

This is an overloaded function.

Returns the negation of matrix.

QGenericMatrix <N, M, T> operator/(const QGenericMatrix <N, M, T> & matrix, T divisor)

Returns the result of dividing all elements of matrix by divisor.

QDataStream & operator<<(QDataStream & stream, const QGenericMatrix <N, M, T> & matrix)

Writes the given matrix to the given stream and returns a reference to the stream.

See also Serializing Qt Data Types.

QDataStream & operator>>(QDataStream & stream, QGenericMatrix <N, M, T> & matrix)

Reads a NxM matrix from the given stream into the given matrix and returns a reference to the stream.

See also Serializing Qt Data Types.