VolVis::Gui::Histogram2d Class Reference

#include <Histogram2d.h>

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Detailed Description

This widget renders the 2d histogram (density values, gradient magnitude values). Data is calculated in the class VolumeData.

Public Member Functions
void	bindVolumeData (VolumeRendering::VolumeData *volume)
	Histogram2d (QWidget *parent, QGLWidget *share)
void	updateHistogram ()
	~Histogram2d ()
Protected Member Functions
void	paintGL ()
void	resizeGL (int width, int height)

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Constructor & Destructor Documentation

VolVis::Gui::Histogram2d::Histogram2d	(	QWidget *	parent,
		QGLWidget *	share
	)

Constructor. Defines the OpenGL Widget.

Parameters:

	parent	parent widget
	share	Render widget with which texture objects should be shared.

VolVis::Gui::Histogram2d::~Histogram2d

(

)

Destructor. Frees texture objects.

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Member Function Documentation

void VolVis::Gui::Histogram2d::bindVolumeData

(

VolumeRendering::VolumeData *

volume

)

Binds the volume data from which the 2d histogram data is aquired.

Parameters:

volume

volume data which contains the 2d histogram data

void VolVis::Gui::Histogram2d::paintGL

(

)

[protected]

This method is called by the slot updateGL() from the base class QGLWidget. This is needed for the openGL callback. It renders the histogram texture to the screen.

void VolVis::Gui::Histogram2d::resizeGL	(	int	width,
		int	height
	)			[protected]

This method is called when the size of the widget is changed.

Parameters:

	width	new width of the widget
	height	new height of the widget

void VolVis::Gui::Histogram2d::updateHistogram

(

)

Fetches the data from the volume and creates a new texture.

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

• Histogram2d.h

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