qwtdoublepoint(3)
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
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code.