QwtVectorFieldSample - Sample used in vector fields.

NAME  SYNOPSIS  Public Member Functions  Public Attributes  Detailed Description  Constructor & Destructor Documentation  QwtVectorFieldSample::QwtVectorFieldSample (double posX = 0.0, double posY= 0.0, double vectorX = 0.0, double vectorY = 0.0) [inline]  QwtVectorFieldSample::QwtVectorFieldSample (const QPointF & pos, doublevectorX = 0.0, double vectorY = 0.0) [inline]  Member Function Documentation  bool QwtVectorFieldSample::isNull () const [inline]  QPointF QwtVectorFieldSample::pos () const [inline]  Member Data Documentation  double QwtVectorFieldSample::vx  double QwtVectorFieldSample::vy  double QwtVectorFieldSample::x  double QwtVectorFieldSample::y  Author 

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NAME

QwtVectorFieldSample − Sample used in vector fields.

SYNOPSIS

#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.
QwtVectorFieldSample (const QPointF &pos, double vx=0.0, double vy=0.0)
Constructor.
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::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::QwtVectorFieldSample (const QPointF & pos, doublevectorX = 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

bool QwtVectorFieldSample::isNull () const [inline]

Returns

true, if vx and vy are 0

Definition at line 309 of file qwt_samples.h.

QPointF QwtVectorFieldSample::pos () const [inline]

Returns

x/y coordinates as QPointF

Definition at line 303 of file qwt_samples.h.

Member Data Documentation

double QwtVectorFieldSample::vx

x coordinate of the vector

Definition at line 263 of file qwt_samples.h.

double QwtVectorFieldSample::vy

y coordinate of the vector

Definition at line 266 of file qwt_samples.h.

double QwtVectorFieldSample::x

x coordinate of the position

Definition at line 257 of file qwt_samples.h.

double QwtVectorFieldSample::y

y coordinate of the position

Definition at line 260 of file qwt_samples.h.

Author

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