QwtVectorFieldSample Class Reference

Sample used in vector fields. More...

#include <qwt_samples.h>

Public Member Functions
	QwtVectorFieldSample (double x=0.0, double y=0.0, double vx=0.0, double vy=0.0)
	Constructor. More...
	QwtVectorFieldSample (const QPointF &pos, double vx=0.0, double vy=0.0)
	Constructor. More...
QPointF	pos () const
bool	isNull () const

Public Attributes
double	x
	x coordinate of the position
double	y
	y coordinate of the position
double	vx
	x coordinate of the vector
double	vy
	y coordinate of the vector

Detailed Description

Sample used in vector fields.

A vector field sample is a position and a vector - usually representing some direction and magnitude - attached to this position.

See also

QwtVectorFieldData

Definition at line 243 of file qwt_samples.h.

Constructor & Destructor Documentation

QwtVectorFieldSample() [1/2]

QwtVectorFieldSample::QwtVectorFieldSample ( double  posX = 0.0, double  posY = 0.0, double  vectorX = 0.0, double  vectorY = 0.0  )

inline

Constructor.

Parameters

posX	x coordinate of the position
posY	y coordinate of the position
vectorX	x coordinate of the vector
vectorY	y coordinate of the vector

Definition at line 277 of file qwt_samples.h.

QwtVectorFieldSample() [2/2]

QwtVectorFieldSample::QwtVectorFieldSample ( const QPointF &  pos, double  vectorX = 0.0, double  vectorY = 0.0  )

inline

Constructor.

Parameters

pos	Position
vectorX	x coordinate of the vector
vectorY	y coordinate of the vector

Definition at line 293 of file qwt_samples.h.

Member Function Documentation

isNull()

bool QwtVectorFieldSample::isNull ( ) const

inline

Returns

true, if vx and vy are 0

Definition at line 309 of file qwt_samples.h.

pos()

QPointF QwtVectorFieldSample::pos ( ) const

inline

Returns

x/y coordinates as QPointF

Definition at line 303 of file qwt_samples.h.