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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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