Package gov.nih.mipav.view.renderer.WildMagic.Render.MultiDimensionalTransfer

Class SquareClassificationWidget

java.lang.Object

gov.nih.mipav.view.renderer.WildMagic.Render.MultiDimensionalTransfer.ClassificationWidget

gov.nih.mipav.view.renderer.WildMagic.Render.MultiDimensionalTransfer.SquareClassificationWidget

All Implemented Interfaces:

Serializable

public class SquareClassificationWidget
extends ClassificationWidget

This class implements a 2D Square-shaped ClassficiationWidget. The code implements the rendering of the widget in the 2D Multi-histogram panel, as well as the user mouse-interaction with the widget. The parameters that define the widget are then passed to the Volume Renderer GLSL shader program and determine how the Volume is displayed. *

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private float	m_fCenterX	Current parameterized coordinates for the center control point in X (used to maintain relative position when resizing the widget).
private float	m_fCenterY	Current parameterized coordinates for the center control point in Y (used to maintain relative position when resizing the widget).
private static final long	serialVersionUID

Fields inherited from class gov.nih.mipav.view.renderer.WildMagic.Render.MultiDimensionalTransfer.ClassificationWidget

BOTTOM_EDGE, LEFT_EDGE, m_iHeight, m_iWidth, m_kLowerSphere, m_kMiddleSphere, m_kMouseOffset, m_kOutline, m_kPicked, m_kTMax, m_kTMin, m_kUpperSphere, m_kWidget, m_kWidgetEfect, m_kWidgetMesh, m_kWidgetState, RIGHT_EDGE, SPHERE_RADIUS, TOP_EDGE

Constructor Summary

Constructors

Constructor	Description
SquareClassificationWidget(int iX, int iY, WildMagic.LibFoundation.Mathematics.Vector2f kTMin, WildMagic.LibFoundation.Mathematics.Vector2f kTMax, WildMagic.LibGraphics.Rendering.Texture kTexture, int iWidth, int iHeight)

Method Summary

Modifier and Type	Method	Description
protected void	CreateSquare(int iX, int iY, WildMagic.LibGraphics.Rendering.Texture kTexture)	Creates the square widget and control points:
boolean	Pick(WildMagic.LibGraphics.Rendering.Renderer kRenderer, int iX, int iY)	Abstract picking.
void	processMouseDrag(int iX0ld, int iYOld, int iButton, int iX, int iY)
private void	readObject(ObjectInputStream in)	Read this object from disk:
protected void	ScaleRectangle(int iX, int iY, boolean bLower)	Scale the rectangle, based on the control points
void	setPicked(boolean bPicked)	Clears or sets the current picked object, sets the outline color to red when picked, blue when not selected.
void	setTexture(WildMagic.LibGraphics.Rendering.Texture kTexture)	Sets the histogram Texture map for the widget shader effect.
private void	ShiftMid(int iX, int iY)	Moves the mid-line control-point.
protected void	ShiftSquare(int iX, int iY)	Translate the square in the 2D Histogram panel.
void	updateDisplay()	Updates the ShaderEffect parameters for this widget.
private void	writeObject(ObjectOutputStream out)	Stream this object to disk.

Methods inherited from class gov.nih.mipav.view.renderer.WildMagic.Render.MultiDimensionalTransfer.ClassificationWidget

calcObjX, calcObjY, calcScreenX, calcScreenY, calcTCoordX, calcTCoordY, clearPicked, dispose, getCenter, getColor, getLUTIndex, getSavedWidgetState, getState, getType, getWidget, Pick, setAlpha, setBoundary, setColor, setLUT, setState

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

serialVersionUID

private static final long serialVersionUID

See Also:

• Constant Field Values

m_fCenterX

private float m_fCenterX

Current parameterized coordinates for the center control point in X (used to maintain relative position when resizing the widget).

m_fCenterY

private float m_fCenterY

Current parameterized coordinates for the center control point in Y (used to maintain relative position when resizing the widget).

Constructor Details

SquareClassificationWidget

public SquareClassificationWidget(int iX,
 int iY,
 WildMagic.LibFoundation.Mathematics.Vector2f kTMin,
 WildMagic.LibFoundation.Mathematics.Vector2f kTMax,
 WildMagic.LibGraphics.Rendering.Texture kTexture,
 int iWidth,
 int iHeight)

Parameters:

iX - location in MouseEvent Coordinates.

iY - location in MouseEvent Coordinates.

kTMin - minimum texture coordinates for the 2D histogram, used for the image background. (Defaults 0-1)

kTMax - maximum texture coordinates for the 2D histogram, used for the image background. (Defaults 0-1)

iWidth - canvas width (default 256)

iHeight - canvas height (default 256)

kTexName - 2D Histogram texture name.

Method Details

Pick

public boolean Pick(WildMagic.LibGraphics.Rendering.Renderer kRenderer,
 int iX,
 int iY)

Description copied from class: ClassificationWidget

Abstract picking. Returns true if this widget, or one of it's control points was picked.

Specified by:

Pick in class ClassificationWidget

Parameters:

iX - current mouse x position (MouseEvent coordinates).

iY - current mouse y position (MouseEvent coordinates).

Returns:

true if this widget or one of it's control points was picked.

processMouseDrag

public void processMouseDrag(int iX0ld,
 int iYOld,
 int iButton,
 int iX,
 int iY)

Specified by:

processMouseDrag in class ClassificationWidget

Parameters:

iX0ld - old mouse x-position in MouseEvent coordinates.

iYOld - old mouse y-position in MouseEvent coordinates.

iButton - old mouse button.

setPicked

public void setPicked(boolean bPicked)

Clears or sets the current picked object, sets the outline color to red when picked, blue when not selected.

Overrides:

setPicked in class ClassificationWidget

Parameters:

bPicked - when true the widget is selected.

setTexture

public void setTexture(WildMagic.LibGraphics.Rendering.Texture kTexture)

Description copied from class: ClassificationWidget

Sets the histogram Texture map for the widget shader effect.

Specified by:

setTexture in class ClassificationWidget

Parameters:

kTexture -

updateDisplay

public void updateDisplay()

Description copied from class: ClassificationWidget

Updates the ShaderEffect parameters for this widget.

Specified by:

updateDisplay in class ClassificationWidget

CreateSquare

protected void CreateSquare(int iX,
 int iY,
 WildMagic.LibGraphics.Rendering.Texture kTexture)

Creates the square widget and control points:

Parameters:

iX - mouse x-position in MouseEvent coordinates.

iY - mouse y-position in MouseEvent coordinates.

kTexName - 2D Histogram texture name.

ScaleRectangle

protected void ScaleRectangle(int iX,
 int iY,
 boolean bLower)

Scale the rectangle, based on the control points

Parameters:

bLower - when true the lower control point is being dragged, false when the upper control-point is dragged.

e - MouseEvent position

ShiftSquare

protected void ShiftSquare(int iX,
 int iY)

Translate the square in the 2D Histogram panel.

Parameters:

e - MouseEvent

readObject

private void readObject(ObjectInputStream in)
                 throws IOException,
ClassNotFoundException

Read this object from disk:

Parameters:

in -

Throws:

IOException

ClassNotFoundException

ShiftMid

private void ShiftMid(int iX,
 int iY)

Moves the mid-line control-point. Repositions the mid-line of the transfer function inside this widget.

Parameters:

e - MouseEvent

writeObject

private void writeObject(ObjectOutputStream out)
                  throws IOException

Stream this object to disk.

Parameters:

out -

Throws:

IOException