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

Class CircleClassificationWidget

java.lang.Object

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

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

All Implemented Interfaces:

Serializable

public class CircleClassificationWidget
extends ClassificationWidget

Creates the circle widget for the multi-histogram interface. The circle consists of two control points. One controls the radius and eccentricity of the circle/ellipse. The second control point centers the maximum color value within the circle/ellipse.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private float	m_fCenterScale	Distance scale used to position the center sphere control-point out from the center of the circle/ellipse.
private float	m_fRadiusX	The radius of the circle in the x-direction.
private float	m_fRadiusY	The radius of the circle in the y-direction.
private WildMagic.LibFoundation.Mathematics.Vector2f	m_kCenterDir	Direction used to position the center sphere control-point out from the center of the circle/ellipse.
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
CircleClassificationWidget(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	CreateCircle(int iX, int iY, WildMagic.LibGraphics.Rendering.Texture kTexture)	Creates the circle widget and control point:
protected WildMagic.LibFoundation.Mathematics.Vector2f	getCenter()	Calculate and return the current center of the widget in world coordinates.
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 a new CircleClassificationWidget from the input stream.
private void	scaleCircle(WildMagic.LibFoundation.Mathematics.Vector2f kCurrentCenter, float diffX, float diffY)	Scale the circle based on the current center and the difference between the current center and the mouse position.
protected void	ScaleCircle(int iX, int iY)	scale the circle based on the mouse position.
void	setPicked(WildMagic.LibGraphics.Rendering.Renderer kRenderer, 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	shiftCircle(WildMagic.LibFoundation.Mathematics.Vector2f kCurrentCenter, float fDiffX, float fDiffY)	Translate the circle based on the current center and the difference between the current center and the mouse position.
protected void	ShiftCircle(int iX, int iY)	Translate the circle in the 2D Histogram panel.
private void	ShiftMid(int iX, int iY)	Moves the mid-line control-point.
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, getColor, getLUTIndex, getSavedWidgetState, getState, getType, getWidget, Pick, setAlpha, setBoundary, setColor, setLUT, setPicked, 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_kCenterDir

private WildMagic.LibFoundation.Mathematics.Vector2f m_kCenterDir

Direction used to position the center sphere control-point out from the center of the circle/ellipse.

m_fCenterScale

private float m_fCenterScale

Distance scale used to position the center sphere control-point out from the center of the circle/ellipse.

m_fRadiusX

private float m_fRadiusX

The radius of the circle in the x-direction.

m_fRadiusY

private float m_fRadiusY

The radius of the circle in the y-direction.

Constructor Details

CircleClassificationWidget

public CircleClassificationWidget(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)

kTexture - 2D Histogram Texture.

iWidth - canvas width (default 256)

iHeight - canvas height (default 256)

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(WildMagic.LibGraphics.Rendering.Renderer kRenderer,
 boolean bPicked)

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

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

CreateCircle

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

Creates the circle widget and control point:

Parameters:

iX - mouse x-position in MouseEvent coordinates.

iY - mouse y-position in MouseEvent coordinates.

kTexName - 2D Histogram texture name.

getCenter

protected WildMagic.LibFoundation.Mathematics.Vector2f getCenter()

Description copied from class: ClassificationWidget

Calculate and return the current center of the widget in world coordinates.

Overrides:

getCenter in class ClassificationWidget

Returns:

the current center of the widget in world coordinates.

ScaleCircle

protected void ScaleCircle(int iX,
 int iY)

scale the circle based on the mouse position.

Parameters:

e -

ShiftCircle

protected void ShiftCircle(int iX,
 int iY)

Translate the circle in the 2D Histogram panel.

Parameters:

e - MouseEvent

readObject

private void readObject(ObjectInputStream in)
                 throws IOException,
ClassNotFoundException

Read a new CircleClassificationWidget from the input stream.

Parameters:

in - input stream

Throws:

IOException

ClassNotFoundException

scaleCircle

private void scaleCircle(WildMagic.LibFoundation.Mathematics.Vector2f kCurrentCenter,
 float diffX,
 float diffY)

Scale the circle based on the current center and the difference between the current center and the mouse position.

Parameters:

kCurrentCenter - circle current center.

diffX - difference between center and mouse position.

diffY - difference between center and mouse position.

shiftCircle

private void shiftCircle(WildMagic.LibFoundation.Mathematics.Vector2f kCurrentCenter,
 float fDiffX,
 float fDiffY)

Translate the circle based on the current center and the difference between the current center and the mouse position.

Parameters:

kCurrentCenter -

fDiffX -

fDiffY -

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 - output stream.

Throws:

IOException