TransferWidget Class Reference

#include <TransferWidget.hpp>

List of all members.

Signals
void	transferChanged ()
Public Member Functions
	TransferWidget (QWidget *parent)
void	redrawScene ()
float *	getTransferValues ()
float *	getTransferControlValues ()
int	getNumPoints ()
void	clear ()
void	setNewRGBXY (float _red, float _green, float _blue, float _x, float _y)
void	resizeEvent (QResizeEvent *event)
void	removePoint (TransferPoint *_pnt)
Static Public Member Functions
static TransferWidget	getTransferWidget ()

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Detailed Description

The transfer widget in which the transfer funtion can be set.

Author:

Christian Hirsch

Clemens Roegner

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Constructor & Destructor Documentation

TransferWidget::TransferWidget

(

QWidget *

parent = 0 )

Constructor. Creates a new class, which represents the transfer function.

Parameters:

parent

Pointer to the parent QWidget element.

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Member Function Documentation

void TransferWidget::clear

(

)

Removes the current transfer function values.

int TransferWidget::getNumPoints

(

)

Retuns the number of current points.

Returns:

Number of current points.

float * TransferWidget::getTransferControlValues

(

)

Returns a float pointer to the transfer function control values, which are used to store in an file. (Format: RGBXY)

Returns:

Pointer to float values of the control points.

float * TransferWidget::getTransferValues

(

)

Calculates the values for the transfer function and returns the pointer to the float values. 4096 RGBA float values are stored.

Returns:

Pointer to the float values.

void TransferWidget::redrawScene

(

)

Redraws the Scene. Redraws the scene with the current set transfer function. Under the points you can see the color-flow, which will be applied to the volume data.

void TransferWidget::removePoint

(

TransferPoint *

_pnt )

Removes a transfer control point. This function removes a control point of the transfer function.

Parameters:

_pnt	Pointer to the pnt whicht should be removed.

void TransferWidget::resizeEvent

(

QResizeEvent *

event )

Handles the resize event. When the transfer widget resizes, all control point positions should be updated and the transfer widget should be redrawn.

Parameters:

event

Pointer to the calling event.

void TransferWidget::setNewRGBXY	(	float	_red,
		float	_green,
		float	_blue,
		float	_x,
		float	_y
	)

Creates a new control point for the transfer function.

Parameters:

_red	The red value in range 0.0 - 1.0
_green	The green value in range 0.0 - 1.0
_blue	The blue value in range 0.0 - 1.0
_x	The relative x position of the new control point in range 0.0 - 1.0
_y	The relative y position of the new control point in range 0.0 - 1.0

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

• src/TransferWidget.hpp
• src/TransferWidget.cpp