WTransferFunctionHistogram Class Reference

Display a semi-transparent line graph as the histogram of the current data set. More...

#include <WTransferFunctionHistogram.h>

Inheritance diagram for WTransferFunctionHistogram:

Collaboration diagram for WTransferFunctionHistogram:

Public Types
typedef QGraphicsItem	BaseClass
	type of the base class More...

Public Member Functions
	WTransferFunctionHistogram (WTransferFunctionWidget *parent=0x0)
	Default constructor. More...
virtual	~WTransferFunctionHistogram ()
	Default destructor. More...
QRectF	boundingRect () const
	Get the bounding rect of the histogram. More...
virtual void	paint (QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *)
	Paint a semi-transparent histogram on top of the transfer function but below the input handles. More...
const std::vector< double > &	getData () const
	Get histogram data. More...
std::vector< double > &	getData ()
	Get histogram data. More...

Private Attributes
std::vector< double >	m_data
	the histogram data More...

Detailed Description

Display a semi-transparent line graph as the histogram of the current data set.

Definition at line 36 of file WTransferFunctionHistogram.h.

Member Typedef Documentation

BaseClass

typedef QGraphicsItem WTransferFunctionHistogram::BaseClass

type of the base class

Definition at line 40 of file WTransferFunctionHistogram.h.

Constructor & Destructor Documentation

WTransferFunctionHistogram()

WTransferFunctionHistogram::WTransferFunctionHistogram ( WTransferFunctionWidget *  parent = 0x0 )

explicit

Default constructor.

Parameters

parent

the parent widget

Definition at line 38 of file WTransferFunctionHistogram.cpp.

~WTransferFunctionHistogram()

WTransferFunctionHistogram::~WTransferFunctionHistogram ( )

virtual

Default destructor.

Definition at line 44 of file WTransferFunctionHistogram.cpp.

Member Function Documentation

boundingRect()

QRectF WTransferFunctionHistogram::boundingRect

(

)

const

Get the bounding rect of the histogram.

Returns

the bounding rectangle

Definition at line 48 of file WTransferFunctionHistogram.cpp.

getData() [1/2]

std::vector< double > & WTransferFunctionHistogram::getData

(

)

Get histogram data.

Returns

histogram data as double vector.

Definition at line 116 of file WTransferFunctionHistogram.cpp.

References m_data.

getData() [2/2]

const std::vector< double > & WTransferFunctionHistogram::getData

(

)

const

Get histogram data.

Returns

histogram data as double vector.

Definition at line 111 of file WTransferFunctionHistogram.cpp.

References m_data.

Referenced by WTransferFunctionWidget::setHistogram(), and WTransferFunctionWidget::updateTransferFunction().

Here is the caller graph for this function:

paint()

void WTransferFunctionHistogram::paint ( QPainter *  painter, const QStyleOptionGraphicsItem *  option, QWidget *    )

virtual

Paint a semi-transparent histogram on top of the transfer function but below the input handles.

Parameters

painter	Painter that does the low-level painting of the histogram item
option	Style of the graphics histogram graphics item (currently not used in the function)

Definition at line 53 of file WTransferFunctionHistogram.cpp.

References m_data.

Member Data Documentation

m_data

std::vector< double > WTransferFunctionHistogram::m_data

private

the histogram data

Definition at line 86 of file WTransferFunctionHistogram.h.

Referenced by getData(), and paint().

---

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

• WTransferFunctionHistogram.h
• WTransferFunctionHistogram.cpp