PlotMM::DoublePoint Class Reference

List of all members.

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Detailed Description

Class defining a point in double coordinates.

Public Member Functions
	DoublePoint ()
	DoublePoint (double x, double y)
	DoublePoint (const Gdk::Point &)
bool	is_null () const
double	get_x () const
double	get_y () const
void	set_x (double x)
void	set_y (double y)
bool	operator== (const DoublePoint &) const
bool	operator!= (const DoublePoint &) const
const DoublePoint	operator- () const
const DoublePoint	operator+ (const DoublePoint &) const
const DoublePoint	operator- (const DoublePoint &) const
const DoublePoint	operator * (double) const
const DoublePoint	operator/ (double) const
DoublePoint &	operator+= (const DoublePoint &)
DoublePoint &	operator-= (const DoublePoint &)
DoublePoint &	operator *= (double)
DoublePoint &	operator/= (double)

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Constructor & Destructor Documentation

DoublePoint::DoublePoint (   )

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

DoublePoint::DoublePoint (  double  x, double  y )

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

DoublePoint::DoublePoint (  const Gdk::Point &   )

Copy constructor.

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Member Function Documentation

double PlotMM::DoublePoint::get_x (   )  const

Returns the x coordinate of the point.

double PlotMM::DoublePoint::get_y (   )  const

Returns the y coordinate of the point.

bool PlotMM::DoublePoint::is_null (   )  const

Returns TRUE if both the x value and the y value are 0; otherwise returns false.

const DoublePoint DoublePoint::operator * (  double   )  const

Returns the point formed by multiplying both components by c.

DoublePoint & DoublePoint::operator *= (  double   )

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

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

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

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

Returns the point formed by adding both components by the components of other. Each component is added separately.

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

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

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

Returns the point formed by subtracting both components by the components of other. Each component is subtracted separately.

const DoublePoint DoublePoint::operator- (   )  const

Returns the point formed by changing the sign of both components, equivalent to QDoublePoint(-x(), -y());

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

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

const DoublePoint DoublePoint::operator/ (  double   )  const

Returns the point formed by dividing both components by c.

DoublePoint & DoublePoint::operator/= (  double   )

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

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

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

void PlotMM::DoublePoint::set_x (  double  x  )

Sets the x coordinate of the point to x.

void PlotMM::DoublePoint::set_y (  double  y  )

Sets the y coordinate of the point to x.

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