RenderWindow Class Reference

#include <renderwindow.h>

Inherits QWindow.

Public Types
enum	RenderType { RENDER_SLICE = 0, RENDER_VOLUME }
enum	ProjectionType { ORTHOGONAL = 0, PERSPECTIVE }
enum	VolumeCompositionMode { FRONT_TO_BACK = true, BACK_TO_FRONT = false }
enum	VolumeRenderMode { COMPOSITION = 0, AVERAGING, MAXIMUM_INTENSITY_PROJECTION }

Public Slots
void	onMessageLogged (QOpenGLDebugMessage message)
void	onTimeout ()
void	updateSlice (int _value)
void	setSliceDirection (int _dir)
void	setRenderType (int _renderType)
void	setIsPerspectiveProjection (bool _perspectiveProjection)
void	setRenderShaded (bool _renderShaded)
void	setVolumeStepSize (double _stepSize)
void	setVolumeRenderMode (int _volumeRenderMode)
void	setVolumeCompositionMode (bool _compositingMode)
void	setRenderCannyEdges (bool _showCannyEdges)
void	setRenderJunctions (bool _showJunctions)
void	setRenderXJunctions (bool _showXJunctions)
void	setUseBlurredTF (bool _useBlurredTF)
void	calculateDepthEnergy ()

Signals
void	depthOrderChanged (float)

Public Member Functions
	RenderWindow (QScreen *screen=0)
	~RenderWindow ()
void	initialize ()
void	update ()
void	render ()
void	updateAndRender ()
void	resize (int width, int height)
void	setVolumeData (const std::string &strFilename)
void	setTransferfunction (const vector< TransferWidget::TransferFeature > &features)
void	initializeMatrices ()
void	initializeSettings ()

Protected Member Functions
void	mousePressEvent (QMouseEvent *event)
void	mouseMoveEvent (QMouseEvent *event)
void	mouseReleaseEvent (QMouseEvent *event)
void	wheelEvent (QWheelEvent *event)

Detailed Description

Main rendering window. The main rendering window, which is on the one hand used to do all the OpenGL rendering and on the other hand to show additional stuff.

See Also

QWindow

Author

Christian Hirsch

Clemens Roegner

Member Enumeration Documentation

enum RenderWindow::ProjectionType

Projection types.

Enumerator
ORTHOGONAL	Use orthogonal projection for 3D rendering.
PERSPECTIVE	Use perspective projection for 3D rendering.

enum RenderWindow::RenderType

Render types.

Enumerator
RENDER_SLICE	Render single slices of the volume.
RENDER_VOLUME	Do 3D volume rendering.

enum RenderWindow::VolumeCompositionMode

Volume rendering composition modes.

Enumerator
FRONT_TO_BACK	Use front to back composition.
BACK_TO_FRONT	Use back to front composition.

enum RenderWindow::VolumeRenderMode

Volume rendering modes.

Enumerator
COMPOSITION	Use composition of volume intensities.
AVERAGING	Use averaging of volume intensities.
MAXIMUM_INTENSITY_PROJECTION	Use maximum intensity projection.

Constructor & Destructor Documentation

RenderWindow::RenderWindow

(

QScreen *

screen = 0)

Constructor. Creates a new instance of the RenderWindow class.

Parameters

screen

The screen used to display.

RenderWindow::~RenderWindow

(

)

Destructor.

Member Function Documentation

void RenderWindow::calculateDepthEnergy ( )

slot

Calculate the depth order (energy value).

void RenderWindow::depthOrderChanged ( float  )

signal

Is emitted when depth order (energy value) has changed.

void RenderWindow::initialize

(

)

Initialization method. Initializes all the necessary objects, settings etc. that are used for the (OpenGL) rendering.

void RenderWindow::initializeMatrices

(

)

Initializes the matrices for OpenGL (viewing, projection, model matrix).

void RenderWindow::initializeSettings

(

)

Initializes the settings for the whole volume rendering.

void RenderWindow::mouseMoveEvent ( QMouseEvent *  event)

protected

Sets variables needed for rotation.

Parameters

event

Event which calls this function.

void RenderWindow::mousePressEvent ( QMouseEvent *  event)

protected

Saves the current mouse position, for handling rotation.

Parameters

event

Event which calls this funtion.

void RenderWindow::mouseReleaseEvent ( QMouseEvent *  event)

protected

Documents when a mouse button has been released.

Parameters

event

Event which calls this funtion.

void RenderWindow::onMessageLogged ( QOpenGLDebugMessage  message)

slot

Log OpenGL messages.

Parameters

message

QOpenGLDebugMessage that should be logged.

void RenderWindow::onTimeout ( )

slot

If timer is used, this slot should be triggered.

void RenderWindow::render

(

)

Renders the image. Renders the image to the screen.

void RenderWindow::resize	(	int	width,
		int	height
	)

Resize the window. This method needs to be called when the window size changes (framebuffers/textures need to be reallocated etc.)

Parameters

width	New width of the window.
height	new height of the window.

void RenderWindow::setIsPerspectiveProjection ( bool  _perspectiveProjection)

slot

Sets the projection type.

Parameters

_perspectiveProjection

True if perspective projection to use.

See Also

ProjectionType

void RenderWindow::setRenderCannyEdges ( bool  _showCannyEdges)

slot

Sets the rendering of the canny edges

Parameters

_showCannyEdges

True if canny edges to render.

void RenderWindow::setRenderJunctions ( bool  _showJunctions)

slot

Sets the rendering of the junctions.

Parameters

_showJunctions

True if junctions to render.

void RenderWindow::setRenderShaded ( bool  _renderShaded)

slot

Sets the shading mode.

Parameters

_renderShaded

True if shaded rendering should be used.

void RenderWindow::setRenderType ( int  _renderType)

slot

Sets a new render type.

Parameters

_renderType

The new render type to be used.

See Also

RenderType

void RenderWindow::setRenderXJunctions ( bool  _showXJunctions)

slot

Sets the rendering of the X-junctions.

Parameters

_showXJunctions

True if X junctions to render.

void RenderWindow::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 RenderWindow::setTransferfunction

(

const vector< TransferWidget::TransferFeature > &

features)

Sets the transfer function. Creates a new texture which stores the interpolated transferfunction values with the given control points.

Parameters

features

The control points of the transferfunction.

void RenderWindow::setUseBlurredTF ( bool  _useBlurredTF)

slot

Sets the use of gaussian transferfunction.

Parameters

_useBlurredTF

True if gaussian (blurred) transferfunctions to use.

void RenderWindow::setVolumeCompositionMode ( bool  _compositingMode)

slot

Sets the new volume composition mode.

Parameters

_compositingMode

The new volume composition mode.

See Also

VolumeCompositionMode

void RenderWindow::setVolumeData

(

const std::string &

strFilename)

Sets volume data. Loads new volume data from an given path.

Parameters

strFilename

Path to the new volume data file.

void RenderWindow::setVolumeRenderMode ( int  _volumeRenderMode)

slot

Sets the new volume render mode.

Parameters

_volumeRenderMode

The new volume render mode.

See Also

VolumeRenderMode

void RenderWindow::setVolumeStepSize ( double  _stepSize)

slot

Sets the new step size for scanning 3D volume.

Parameters

_stepSize

The step size to use for scanning the volume.

void RenderWindow::update

(

)

Updates the settings. Updates the settings, should be called when viewing, lightning etc. has changed.

void RenderWindow::updateAndRender

(

)

Updates the settings and renders the image.

See Also

update

render

void RenderWindow::updateSlice ( int  _value)

slot

Renders a slice.

Parameters

_value

Number of slice, which should be rendered.

void RenderWindow::wheelEvent ( QWheelEvent *  event)

protected

Is used to handle zooming.

Parameters

event

Event which calls this funtion.

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

• C:/Development/workspace/Vis2/src/renderwindow.h
• C:/Development/workspace/Vis2/src/renderwindow.cpp