Qwt User's Guide  6.2.0
QwtVectorFieldThinArrow Class Reference

#include <qwt_vectorfield_symbol.h>

Inheritance diagram for QwtVectorFieldThinArrow:

Public Member Functions

 QwtVectorFieldThinArrow (qreal headWidth=6.0)
 Constructor. More...
 
virtual ~QwtVectorFieldThinArrow () override
 Destructor.
 
virtual void setLength (qreal length) override
 
virtual qreal length () const override
 
virtual void paint (QPainter *) const override
 Draw the symbol/arrow.
 
- Public Member Functions inherited from QwtVectorFieldSymbol
 QwtVectorFieldSymbol ()
 Constructor.
 
virtual ~QwtVectorFieldSymbol ()
 Destructor.
 

Detailed Description

Arrow implementation that only used lines, with optionally a filled arrow or only lines.

Definition at line 81 of file qwt_vectorfield_symbol.h.

Constructor & Destructor Documentation

◆ QwtVectorFieldThinArrow()

QwtVectorFieldThinArrow::QwtVectorFieldThinArrow ( qreal  headWidth = 6.0)

Constructor.

The length is initialized by headWidth + 4

Parameters
headWidthWidth of the triangular head
See also
setLength()

Definition at line 128 of file qwt_vectorfield_symbol.cpp.

Member Function Documentation

◆ length()

qreal QwtVectorFieldThinArrow::length ( ) const
overridevirtual
Returns
length of the symbol/arrow
See also
setLength()

Implements QwtVectorFieldSymbol.

Definition at line 152 of file qwt_vectorfield_symbol.cpp.

◆ setLength()

void QwtVectorFieldThinArrow::setLength ( qreal  length)
overridevirtual

Set the length of the symbol/arrow

See also
length()

Implements QwtVectorFieldSymbol.

Definition at line 139 of file qwt_vectorfield_symbol.cpp.