QwtDoublePoint

Langue: en

Version: 276515 (debian - 07/07/09)

Section: 3 (Bibliothèques de fonctions)

Sommaire

NAME

QwtDoublePoint -

SYNOPSIS


Detailed Description

The QwtDoublePoint class defines a point in double coordinates

Definition at line 22 of file qwt_double_rect.h.

Public Member Functions


QwtDoublePoint ()

QwtDoublePoint (double x, double y)

QwtDoublePoint (const QPoint &)

bool isNull () const

double x () const

double y () const

void setX (double x)

void setY (double y)

double & rx ()

double & ry ()

bool operator== (const QwtDoublePoint &) const

bool operator!= (const QwtDoublePoint &) const

const QwtDoublePoint operator- () const

const QwtDoublePoint operator+ (const QwtDoublePoint &) const

const QwtDoublePoint operator- (const QwtDoublePoint &) const

const QwtDoublePoint operator * (double) const

const QwtDoublePoint operator/ (double) const

QwtDoublePoint & operator+= (const QwtDoublePoint &)

QwtDoublePoint & operator-= (const QwtDoublePoint &)

QwtDoublePoint & operator *= (double)

QwtDoublePoint & operator/= (double)

Constructor & Destructor Documentation

QwtDoublePoint::QwtDoublePoint ()

Constructs a point with coordinates (0.0, 0.0) (isNull() returns TRUE).

Definition at line 14 of file qwt_double_rect.cpp.

Referenced by operator *(), operator+(), operator-(), and operator/().

QwtDoublePoint::QwtDoublePoint (double x, double y)

Constructs a point with x value xpos and y value ypos.

Definition at line 22 of file qwt_double_rect.cpp.

QwtDoublePoint::QwtDoublePoint (const QPoint &)

Copy constructor.

Definition at line 29 of file qwt_double_rect.cpp.

Member Function Documentation

bool QwtDoublePoint::isNull () const

Returns TRUE if both the x value and the y value are 0; otherwise returns FALSE. Definition at line 181 of file qwt_double_rect.h.

const QwtDoublePoint QwtDoublePoint::operator * (double) const

Returns the point formed by multiplying both components by c.

Definition at line 81 of file qwt_double_rect.cpp.

References QwtDoublePoint().

QwtDoublePoint & QwtDoublePoint::operator *= (double)

Multiplies this point's x and y by c, and returns a reference to this point.

Definition at line 113 of file qwt_double_rect.cpp.

bool QwtDoublePoint::operator!= (const QwtDoublePoint &) const

Returns TRUE if point and other are not equal; otherwise returns FALSE.

Definition at line 42 of file qwt_double_rect.cpp.

References operator==().

const QwtDoublePoint QwtDoublePoint::operator+ (const QwtDoublePoint & other) const

Returns the point formed by adding both components by the components of other. Each component is added separately. Definition at line 62 of file qwt_double_rect.cpp.

References d_x, d_y, and QwtDoublePoint().

QwtDoublePoint & QwtDoublePoint::operator+= (const QwtDoublePoint &)

Adds point other to this point and returns a reference to this point.

Definition at line 95 of file qwt_double_rect.cpp.

References d_x, and d_y.

const QwtDoublePoint QwtDoublePoint::operator- (const QwtDoublePoint & other) const

Returns the point formed by subtracting both components by the components of other. Each component is subtracted separately. Definition at line 73 of file qwt_double_rect.cpp.

References d_x, d_y, and QwtDoublePoint().

const QwtDoublePoint QwtDoublePoint::operator- () const

Returns the point formed by changing the sign of both components, equivalent to QDoublePoint(-x(), -y()); Definition at line 52 of file qwt_double_rect.cpp.

References QwtDoublePoint().

QwtDoublePoint & QwtDoublePoint::operator-= (const QwtDoublePoint &)

Subtracts point other from this point and returns a reference to this point.

Definition at line 104 of file qwt_double_rect.cpp.

References d_x, and d_y.

const QwtDoublePoint QwtDoublePoint::operator/ (double) const

Returns the point formed by dividing both components by c.

Definition at line 88 of file qwt_double_rect.cpp.

References QwtDoublePoint().

QwtDoublePoint & QwtDoublePoint::operator/= (double)

Divides both x and y by c, and returns a reference to this point.

Definition at line 122 of file qwt_double_rect.cpp.

bool QwtDoublePoint::operator== (const QwtDoublePoint &) const

Returns TRUE if point and other are equal; otherwise returns FALSE.

Definition at line 36 of file qwt_double_rect.cpp.

References d_x, and d_y.

Referenced by operator!=().

double & QwtDoublePoint::rx ()

Returns a reference to the x coordinate of the point.

Definition at line 211 of file qwt_double_rect.h.

double & QwtDoublePoint::ry ()

Returns a reference to the y coordinate of the point.

Definition at line 217 of file qwt_double_rect.h.

void QwtDoublePoint::setX (double x)

Sets the x coordinate of the point to x.

Definition at line 199 of file qwt_double_rect.h.

void QwtDoublePoint::setY (double y)

Sets the y coordinate of the point to x.

Definition at line 205 of file qwt_double_rect.h.

double QwtDoublePoint::x () const

Returns the x coordinate of the point.

Definition at line 187 of file qwt_double_rect.h.

Referenced by QwtDoubleRect::contains(), QwtPlotPicker::cursorLabel(), QwtDoubleRect::moveCenter(), and QwtPlotPicker::transform().

double QwtDoublePoint::y () const

Returns the y coordinate of the point.

Definition at line 193 of file qwt_double_rect.h.

Referenced by QwtDoubleRect::contains(), QwtPlotPicker::cursorLabel(), QwtDoubleRect::moveCenter(), and QwtPlotPicker::transform().

Author

Generated automatically by Doxygen for Qwt User's Guide from the source code.