java.lang.Object
- gov.nih.mipav.view.renderer.WildMagic.Render.MultiDimensionalTransfer.ClassificationWidget

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

CircleClassificationWidget, SquareClassificationWidget, TriangleClassificationWidget
```
public abstract class ClassificationWidget
extends java.lang.Object
implements java.io.Serializable
```
This is the base class for the Multi-histogram widgets. The multi-histogram widgets are objects rendered in 2D in the Multi-histogram panel. The user can manipulate the widgets shape, size, color in the 2D histogram panel. This class encapsulates the rendering and user-interaction with the widgets. Based on how the widgets are rendered, they determine how the volume is renderer when the multi-histogram rendering is enabled. The parameters that define the widget are passed to the Volume Renderer GLSL program through the ClassificationWidgetState class, that is accessed through this class.

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type	Field	Description
`protected static int`	`BOTTOM_EDGE`	Bottom bounding edge of the canvas in world coordinates.
`protected static int`	`LEFT_EDGE`	Left bounding edge of the canvas in world coordinates.
`protected int`	`m_iHeight`	Canvas width and height
`protected int`	`m_iWidth`	Canvas width and height
`protected WildMagic.LibGraphics.SceneGraph.TriMesh`	`m_kLowerSphere`	The lower-sphere control point of the widget, controls the shape/size of the widget
`protected WildMagic.LibGraphics.SceneGraph.TriMesh`	`m_kMiddleSphere`	The middle-sphere control point of the widget, controls the color transfer function inside the widget.
`protected WildMagic.LibFoundation.Mathematics.Vector2f`	`m_kMouseOffset`	Mouse offset used for dragging the widget.
`protected WildMagic.LibGraphics.SceneGraph.Polyline`	`m_kOutline`	Polyline outlines the widget in red when selected, or blue when non selected.
`protected WildMagic.LibGraphics.SceneGraph.Spatial`	`m_kPicked`	Currently picked, or active part of this widget, may be the mesh or one of the control-point spheres.
`protected WildMagic.LibFoundation.Mathematics.Vector2f`	`m_kTMax`	Maximum texture coordinates for the 2D histogram.
`protected WildMagic.LibFoundation.Mathematics.Vector2f`	`m_kTMin`	Minimum texture coordinates for the 2D histogram.
`protected WildMagic.LibGraphics.SceneGraph.TriMesh`	`m_kUpperSphere`	The upper-sphere control point of the widget, controls the shape/size of the widget
`protected WildMagic.LibGraphics.SceneGraph.Node`	`m_kWidget`	The top-level node containing the widget graphic data structures (triangle meshes and transformations)
`protected ClassificationWidgetEffect`	`m_kWidgetEfect`	The shader effect used to render the inside color transfer function of the widget, based on the position of the widget and the position of the middle (green) sphere control-point.
`protected WildMagic.LibGraphics.SceneGraph.TriMesh`	`m_kWidgetMesh`	The TriMesh representing the shape of the widget.
`protected ClassificationWidgetState`	`m_kWidgetState`	Shader effect state, for reading from disk:
`protected static int`	`RIGHT_EDGE`	Right bounding edge of the canvas in world coordinates.
`private static long`	`serialVersionUID`
`protected static float`	`SPHERE_RADIUS`	Radius of the sphere control points of the widget in world coordinates.
`protected static int`	`TOP_EDGE`	Top bounding edge of the canvas in world coordinates.

Constructor Summary

Constructors
Constructor	Description
`ClassificationWidget()`	Default Constructor
`ClassificationWidget(ClassificationWidget kWidget)`	Copy Constructor.
`ClassificationWidget(WildMagic.LibFoundation.Mathematics.Vector2f kTMin, WildMagic.LibFoundation.Mathematics.Vector2f kTMax, int iWidth, int iHeight)`	Create a new ClassificationWidget.

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`protected float`	`calcObjX(float val)`	Calculate the world X coordinates from input MouseEvent coordinates.
`protected float`	`calcObjY(float val)`	Calculate the world Y coordinates from input MouseEvent coordinates.
`protected float`	`calcScreenX(float val)`	Calculate the screen X coordinates from input world coordinates.
`protected float`	`calcScreenY(float val)`	Calculate the screen Y coordinates from input world coordinates.
`protected float`	`calcTCoordX(float val)`	Calculate the X Texture Coordinates from world coordinates.
`protected float`	`calcTCoordY(float val)`	Calculate the Y Texture Coordinates from world coordinates.
`void`	`clearPicked()`	Clears the current picked widget.
`void`	`dispose()`	Dispose local memory.
`protected WildMagic.LibFoundation.Mathematics.Vector2f`	`getCenter()`	Calculate and return the current center of the widget in world coordinates.
`WildMagic.LibFoundation.Mathematics.ColorRGBA`	`getColor()`	Returns the widget current color from the widget shader.
`int`	`getLUTIndex()`	Returns the index of the color look-up table color map.
`ClassificationWidgetState`	`getSavedWidgetState()`	Returns the widget state read from file, so it can initialize a new shader effect.
`ClassificationWidgetState`	`getState()`	Returns the current state of the widget shader effect.
`int`	`getType()`	Returns the type of widget (Circle, Triangle, Square).
`WildMagic.LibGraphics.SceneGraph.Node`	`getWidget()`	Returns the Widget scene graph Node.
`abstract boolean`	`Pick(WildMagic.LibGraphics.Rendering.Renderer kRenderer, int iX, int iY)`	Abstract picking.
`boolean`	`Pick(WildMagic.LibGraphics.Rendering.Renderer kRenderer, int iX, int iY, boolean bPicked)`	Picking.
`abstract void`	`processMouseDrag(int iX0ld, int iYOld, int iButton, int iX, int iY)`
`private void`	`readObject(java.io.ObjectInputStream in)`	Read this object from disk:
`void`	`setAlpha(float fAlpha)`	Sets the alpha value of the widget.
`void`	`setBoundary(float fAlpha)`	Sets the contribution of the 2nd derivative on the volume rendering for this widget.
`void`	`setColor(WildMagic.LibFoundation.Mathematics.ColorRGBA kColor)`	Sets the color of the color transfer function for this widget.
`void`	`setLUT(WildMagic.LibGraphics.Rendering.Texture kMap, int index, boolean bReverse)`	Set the color look-up table for the widget.
`void`	`setPicked(boolean bPicked)`	Clears or sets the current picked object, sets the outline color to red when picked, blue when not selected.
`void`	`setState(ClassificationWidgetState state)`	Sets the ClassificationWidgetState of the widget.
`abstract void`	`setTexture(WildMagic.LibGraphics.Rendering.Texture kTexture)`	Sets the histogram Texture map for the widget shader effect.
`abstract void`	`updateDisplay()`	Updates the ShaderEffect parameters for this widget.
`private void`	`writeObject(java.io.ObjectOutputStream out)`	Stream this object to disk.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - serialVersionUID
```
private static final long serialVersionUID
```
    See Also:
    
    Constant Field Values
  - m_kTMin
```
protected WildMagic.LibFoundation.Mathematics.Vector2f m_kTMin
```
    Minimum texture coordinates for the 2D histogram. The 2D Histogram is truncated based on a minimum threshold value, so the entire histogram may not be used depending on the data.
  - m_kTMax
```
protected WildMagic.LibFoundation.Mathematics.Vector2f m_kTMax
```
    Maximum texture coordinates for the 2D histogram. The 2D Histogram is truncated based on a minimum threshold value, so the entire histogram may not be used depending on the data.
  - m_iWidth
```
protected int m_iWidth
```
    Canvas width and height
  - m_iHeight
```
protected int m_iHeight
```
    Canvas width and height
  - m_kPicked
```
protected WildMagic.LibGraphics.SceneGraph.Spatial m_kPicked
```
    Currently picked, or active part of this widget, may be the mesh or one of the control-point spheres. When null no part of this widget is currently active.
  - m_kWidget
```
protected WildMagic.LibGraphics.SceneGraph.Node m_kWidget
```
    The top-level node containing the widget graphic data structures (triangle meshes and transformations)
  - m_kOutline
```
protected WildMagic.LibGraphics.SceneGraph.Polyline m_kOutline
```
    Polyline outlines the widget in red when selected, or blue when non selected.
  - m_kWidgetMesh
```
protected WildMagic.LibGraphics.SceneGraph.TriMesh m_kWidgetMesh
```
    The TriMesh representing the shape of the widget.
  - m_kWidgetEfect
```
protected ClassificationWidgetEffect m_kWidgetEfect
```
    The shader effect used to render the inside color transfer function of the widget, based on the position of the widget and the position of the middle (green) sphere control-point.
  - m_kUpperSphere
```
protected WildMagic.LibGraphics.SceneGraph.TriMesh m_kUpperSphere
```
    The upper-sphere control point of the widget, controls the shape/size of the widget
  - m_kMiddleSphere
```
protected WildMagic.LibGraphics.SceneGraph.TriMesh m_kMiddleSphere
```
    The middle-sphere control point of the widget, controls the color transfer function inside the widget.
  - m_kLowerSphere
```
protected WildMagic.LibGraphics.SceneGraph.TriMesh m_kLowerSphere
```
    The lower-sphere control point of the widget, controls the shape/size of the widget
  - LEFT_EDGE
```
protected static int LEFT_EDGE
```
    Left bounding edge of the canvas in world coordinates.
  - RIGHT_EDGE
```
protected static int RIGHT_EDGE
```
    Right bounding edge of the canvas in world coordinates.
  - BOTTOM_EDGE
```
protected static int BOTTOM_EDGE
```
    Bottom bounding edge of the canvas in world coordinates.
  - TOP_EDGE
```
protected static int TOP_EDGE
```
    Top bounding edge of the canvas in world coordinates.
  - SPHERE_RADIUS
```
protected static float SPHERE_RADIUS
```
    Radius of the sphere control points of the widget in world coordinates.
  - m_kMouseOffset
```
protected WildMagic.LibFoundation.Mathematics.Vector2f m_kMouseOffset
```
    Mouse offset used for dragging the widget. Stored in screen (MouseEvent) coordinates
  - m_kWidgetState
```
protected ClassificationWidgetState m_kWidgetState
```
    Shader effect state, for reading from disk:
- Constructor Detail
  - ClassificationWidget
```
public ClassificationWidget()
```
    Default Constructor
  - ClassificationWidget
```
public ClassificationWidget(ClassificationWidget kWidget)
```
    Copy Constructor. Copies the input ClassificationWidget
    
    Parameters:
    
    kWidget -
  - ClassificationWidget
```
public ClassificationWidget(WildMagic.LibFoundation.Mathematics.Vector2f kTMin,
                            WildMagic.LibFoundation.Mathematics.Vector2f kTMax,
                            int iWidth,
                            int iHeight)
```
    Create a new ClassificationWidget.
    
    Parameters:
    
    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)
- Method Detail
  - clearPicked
```
public void clearPicked()
```
    Clears the current picked widget.
  - dispose
```
public void dispose()
```
    Dispose local memory.
  - getColor
```
public WildMagic.LibFoundation.Mathematics.ColorRGBA getColor()
```
    Returns the widget current color from the widget shader.
    
    Returns:
    
    widget shader effect, constant color from the shader color transfer function.
  - getLUTIndex
```
public int getLUTIndex()
```
    Returns the index of the color look-up table color map.
    
    Returns:
    
    the index of the color look-up table color map.
  - getSavedWidgetState
```
public ClassificationWidgetState getSavedWidgetState()
```
    Returns the widget state read from file, so it can initialize a new shader effect.
    
    Returns:
  - getState
```
public ClassificationWidgetState getState()
```
    Returns the current state of the widget shader effect.
    
    Returns:
    
    the current state of the widget shader effect.
  - getType
```
public int getType()
```
    Returns the type of widget (Circle, Triangle, Square).
    
    Returns:
    
    the type of widget (Circle, Triangle, Square).
  - getWidget
```
public WildMagic.LibGraphics.SceneGraph.Node getWidget()
```
    Returns the Widget scene graph Node.
    
    Returns:
    
    the Widget scene graph Node.
  - Pick
```
public abstract boolean Pick(WildMagic.LibGraphics.Rendering.Renderer kRenderer,
                             int iX,
                             int iY)
```
    Abstract picking. Returns true if this widget, or one of it's control points was picked.
    
    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.
  - Pick
```
public boolean Pick(WildMagic.LibGraphics.Rendering.Renderer kRenderer,
                    int iX,
                    int iY,
                    boolean bPicked)
```
    Picking. Returns true if this widget, or one of it's control points was picked.
    
    Parameters:
    
    iX - current mouse x position (MouseEvent coordinates).
    
    iY - current mouse y position (MouseEvent coordinates).
    
    bPicked - input parameter from the derived classes, when true the derived class widget shape was picked.
    
    Returns:
    
    true if this widget or one of it's control points was picked.
  - processMouseDrag
```
public abstract void processMouseDrag(int iX0ld,
                                      int iYOld,
                                      int iButton,
                                      int iX,
                                      int iY)
```
    Parameters:
    
    iX0ld - old mouse x-position in MouseEvent coordinates.
    
    iYOld - old mouse y-position in MouseEvent coordinates.
    
    iButton - old mouse button.
    
    e - current MouseEvent
  - setAlpha
```
public void setAlpha(float fAlpha)
```
    Sets the alpha value of the widget.
    
    Parameters:
    
    fAlpha -
  - setBoundary
```
public void setBoundary(float fAlpha)
```
    Sets the contribution of the 2nd derivative on the volume rendering for this widget.
    
    Parameters:
    
    fAlpha - the contribution of the 2nd derivative on the volume rendering for this widget.
  - setColor
```
public void setColor(WildMagic.LibFoundation.Mathematics.ColorRGBA kColor)
```
    Sets the color of the color transfer function for this widget.
    
    Parameters:
    
    kColor - the color of the color transfer function for this widget.
  - setLUT
```
public void setLUT(WildMagic.LibGraphics.Rendering.Texture kMap,
                   int index,
                   boolean bReverse)
```
    Set the color look-up table for the widget.
    
    Parameters:
    
    kMap - Texture map look-up table.
    
    index - index of the look-up table.
    
    bReverse - inverts the table when true.
  - 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.
    
    Parameters:
    
    bPicked - when true the widget is selected.
  - setState
```
public void setState(ClassificationWidgetState state)
```
    Sets the ClassificationWidgetState of the widget.
    
    Parameters:
    
    state -
  - setTexture
```
public abstract void setTexture(WildMagic.LibGraphics.Rendering.Texture kTexture)
```
    Sets the histogram Texture map for the widget shader effect.
    
    Parameters:
    
    kTexture -
  - updateDisplay
```
public abstract void updateDisplay()
```
    Updates the ShaderEffect parameters for this widget.
  - calcObjX
```
protected float calcObjX(float val)
```
    Calculate the world X coordinates from input MouseEvent coordinates.
    
    Parameters:
    
    val - input MouseEvent Coordinates.
    
    Returns:
    
    corresponding x-position in world coordinates.
  - calcObjY
```
protected float calcObjY(float val)
```
    Calculate the world Y coordinates from input MouseEvent coordinates.
    
    Parameters:
    
    val - input MouseEvent Coordinates.
    
    Returns:
    
    corresponding y-position in world coordinates.
  - calcScreenX
```
protected float calcScreenX(float val)
```
    Calculate the screen X coordinates from input world coordinates.
    
    Parameters:
    
    val - input world Coordinates.
    
    Returns:
    
    corresponding x-position in MouseEvent coordinates.
  - calcScreenY
```
protected float calcScreenY(float val)
```
    Calculate the screen Y coordinates from input world coordinates.
    
    Parameters:
    
    val - input world Coordinates.
    
    Returns:
    
    corresponding y-position in MouseEvent coordinates.
  - calcTCoordX
```
protected float calcTCoordX(float val)
```
    Calculate the X Texture Coordinates from world coordinates. The texture coordinates are scaled, based on the minimum and maximum texture coordinates of the 2D histogram texture.
    
    Parameters:
    
    val - input world Coordinates.
    
    Returns:
    
    corresponding x Texture coordinates.
  - calcTCoordY
```
protected float calcTCoordY(float val)
```
    Calculate the Y Texture Coordinates from world coordinates. The texture coordinates are scaled, based on the minimum and maximum texture coordinates of the 2D histogram texture.
    
    Parameters:
    
    val - input world Coordinates.
    
    Returns:
    
    corresponding y Texture coordinates.
  - getCenter
```
protected WildMagic.LibFoundation.Mathematics.Vector2f getCenter()
```
    Calculate and return the current center of the widget in world coordinates.
    
    Returns:
    
    the current center of the widget in world coordinates.
  - readObject
```
private void readObject(java.io.ObjectInputStream in)
                 throws java.io.IOException,
                        java.lang.ClassNotFoundException
```
    Read this object from disk:
    
    Parameters:
    
    in -
    
    Throws:
    
    java.io.IOException
    
    java.lang.ClassNotFoundException
  - writeObject
```
private void writeObject(java.io.ObjectOutputStream out)
                  throws java.io.IOException
```
    Stream this object to disk.
    
    Parameters:
    
    out -
    
    Throws:
    
    java.io.IOException

Class ClassificationWidget

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

serialVersionUID

m_kTMin

m_kTMax

m_iWidth

m_iHeight

m_kPicked

m_kWidget

m_kOutline

m_kWidgetMesh

m_kWidgetEfect

m_kUpperSphere

m_kMiddleSphere

m_kLowerSphere

LEFT_EDGE

RIGHT_EDGE

BOTTOM_EDGE

TOP_EDGE

SPHERE_RADIUS

m_kMouseOffset

m_kWidgetState

Constructor Detail

ClassificationWidget

ClassificationWidget

ClassificationWidget

Method Detail

clearPicked

dispose

getColor

getLUTIndex

getSavedWidgetState

getState

getType

getWidget

Pick

Pick

processMouseDrag

setAlpha

setBoundary

setColor

setLUT

setPicked

setState

setTexture

updateDisplay

calcObjX

calcObjY

calcScreenX

calcScreenY

calcTCoordX

calcTCoordY

getCenter

readObject

writeObject