QwtVectorFieldArrow Class Reference

Arrow implementation that draws a filled arrow with outline, using a triangular head of constant width. More...

#include <qwt_vectorfield_symbol.h>

Inheritance diagram for QwtVectorFieldArrow:

Classes
class	PrivateData

Public Member Functions
	QwtVectorFieldArrow (qreal headWidth=6.0, qreal tailWidth=1.0)
	Constructor with head and tail width parameters.
virtual	~QwtVectorFieldArrow () override
	Destructor.
virtual void	setLength (qreal length) override
	Set the length of the arrow.
virtual qreal	length () const override
	Return the length of the arrow.
virtual void	paint (QPainter *) const override
	Draw the arrow.
Public Member Functions inherited from QwtVectorFieldSymbol
	QwtVectorFieldSymbol ()
	Constructor.
virtual	~QwtVectorFieldSymbol ()
	Destructor.

Detailed Description

Arrow implementation that draws a filled arrow with outline, using a triangular head of constant width.

Constructor & Destructor Documentation

QwtVectorFieldArrow()

QwtVectorFieldArrow::QwtVectorFieldArrow	(	qreal	headWidth = 6.0,
		qreal	tailWidth = 1.0
	)

Constructor with head and tail width parameters.

Constructor

The length is initialized by headWidth + 4

Parameters

headWidth	Width of the triangular head
tailWidth	Width of the arrow tail

See also

setLength()

~QwtVectorFieldArrow()

QwtVectorFieldArrow::~QwtVectorFieldArrow ( )

overridevirtual

Destructor.

Destructor

.

Member Function Documentation

length()

qreal QwtVectorFieldArrow::length ( ) const

overridevirtual

Return the length of the arrow.

Implements QwtVectorFieldSymbol.

paint()

void QwtVectorFieldArrow::paint ( QPainter *  painter ) const

overridevirtual

Draw the arrow.

Draw the arrow using QPainter.

Implements QwtVectorFieldSymbol.

setLength()

void QwtVectorFieldArrow::setLength ( qreal  length )

overridevirtual

Set the length of the arrow.

Implements QwtVectorFieldSymbol.

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The documentation for this class was generated from the following files:

• /home/runner/work/QWT/QWT/src/plot/qwt_vectorfield_symbol.h
• /home/runner/work/QWT/QWT/src/plot/qwt_vectorfield_symbol.cpp