GLWidget Class Reference

#include <GLWidget.hpp>

List of all members.

Public Slots
void	updateSlice (int _value)
void	setSliceDirection (int _dir)
void	setRenderMode (int _mode)
void	setVolumeRenderMode (int _mode)
void	setLight (int _state)
void	setStepSize (double _stepSize)
void	setCompositingMode (bool _f2b)
void	setProjection (int _proj)
void	setXPlane (int _xPlane)
void	setYPlane (int _yPlane)
void	setZPlane (int _zPlane)
void	resetSettings ()
Signals
void	rangeChanged (int _min, int _max)
Public Member Functions
	GLWidget (QWidget *parent=0)
virtual	~GLWidget ()
void	loadData (const std::string &strFilename)
void	saveScreenshot ()
void	setTransferValues (float *_values)
Protected Member Functions
void	initializeGL ()
void	resizeGL (int width, int height)
void	paintGL ()
void	mousePressEvent (QMouseEvent *event)
void	mouseMoveEvent (QMouseEvent *event)

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Detailed Description

Class which represents the OpenGL rendering window. In this Class all needed functions for handling the volume and slice rendering are implemented.

Author:

Christian Hirsch

Clemens Roegner

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Constructor & Destructor Documentation

GLWidget::GLWidget

(

QWidget *

parent = 0 )

Constructor. This constructor creates a new OpenGL render window.

Parameters:

parent

Parent QWidget element.

GLWidget::~GLWidget

(

)

[virtual]

Destructor. Releases all the needed (graphics) memory.

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Member Function Documentation

void GLWidget::initializeGL

(

)

[protected]

Initializes all data needed for rendering (including devil + glut).

void GLWidget::loadData

(

const std::string &

strFilename )

Loads new volume data.

Parameters:

_path

String to the path of the volume data.

void GLWidget::mouseMoveEvent

(

QMouseEvent *

event )

[protected]

Sets variables needed for rotation.

Parameters:

event

Event which calls this function.

void GLWidget::mousePressEvent

(

QMouseEvent *

event )

[protected]

Saves the current mouse position, for handling rotation.

Parameters:

event

Event which calls this funtion.

void GLWidget::paintGL

(

)

[protected]

Render function. Renders either the slices or the full volume data.

void GLWidget::rangeChanged	(	int	_min,
		int	_max
	)		[signal]

Signal which is emitted, when the slice range changes.

Parameters:

_min	The new minimum value.
_max	The new maximum value.

void GLWidget::resetSettings

(

)

[slot]

Resets the settings to standard volume rendering (compositing - front to back, with perspective projection and without shading.

void GLWidget::resizeGL	(	int	width,
		int	height
	)		[protected]

Initializes the OpenGL render window when the window is resized.

Parameters:

width	The new width of the render window.
height	The new height of the render window.

void GLWidget::saveScreenshot

(

)

This function saves a screenhot in the programs folder. The file name is created automatically.

void GLWidget::setCompositingMode

(

bool

_f2b )

[slot]

Sets the mode for compositing rendering.

Parameters:

_f2b	If true, then front to back rendering is used, otherwise back to front is used.

void GLWidget::setLight

(

int

_state )

[slot]

Sets the shader mode.

Parameters:

_state

If Qt::Checked then shading is applyed, otherwise shading isn't applyed.

void GLWidget::setProjection

(

int

_proj )

[slot]

Stets the projection mode.

Parameters:

_proj

If Qt::checked, perpective projection is used, otherwise orthogonal projection is used.

void GLWidget::setRenderMode

(

int

_mode )

[slot]

Sets the render mode (slice/volume rendering).

Parameters:

_mode

The new mode which should be used. 0 = slice, 1 = volume

void GLWidget::setSliceDirection

(

int

_dir )

[slot]

Sets the new slice direction.

Parameters:

_dir	The new direction which should be rendered. 0 = x, 1 = y, 2 = z

void GLWidget::setStepSize

(

double

_stepSize )

[slot]

Sets the new step size.

Parameters:

_stepSize

The new step size which is used.

void GLWidget::setTransferValues

(

float *

_values )

Sets the new transfer values and updates the 1D texture.

Parameters:

_value

Pointer to the location of the transfer values.

void GLWidget::setVolumeRenderMode

(

int

_mode )

[slot]

Sets the new volume render mode.

Parameters:

_mode

The new mode which should be used. 0 = compositing, 1 = MIP, 2 = averaging

void GLWidget::setXPlane

(

int

_xPlane )

[slot]

Sets the position of the x-plane.

Parameters:

_xPlane

Position of the x plane. If positive, then the plane will be on the left side, otherwise on the right side.

void GLWidget::setYPlane

(

int

_yPlane )

[slot]

Sets the position of the y-plane.

Parameters:

_yPlane

Position of the y plane. If positive, then the plane will be on the bottom, otherwise on the top.

void GLWidget::setZPlane

(

int

_zPlane )

[slot]

Sets the position of the z-plane.

Parameters:

_zPlane

Position of the z plane. If positive, then the plane will be on the bottom, otherwise on the top.

void GLWidget::updateSlice

(

int

_value )

[slot]

Renders a slice.

Parameters:

_value

Number of slice, which should be rendered.

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

• src/GLWidget.hpp
• src/GLWidget.cpp