QwtVectorFieldSample(3)        Qwt User's Guide        QwtVectorFieldSample(3)

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, 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
   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.


Author
       Generated automatically by Doxygen for Qwt User's Guide from the source
       code.

Version 6.2.0                   Sun Jul 18 2021        QwtVectorFieldSample(3)