ch.unizh.ini.jaer.projects.gesture
Class XYCenterOutFilter

java.lang.Object
  net.sf.jaer.eventprocessing.EventFilter
      net.sf.jaer.eventprocessing.EventFilter2D
          ch.unizh.ini.jaer.projects.gesture.XYCenterOutFilter

All Implemented Interfaces:

java.util.Observer, FrameAnnotater

public class XYCenterOutFilter
extends EventFilter2D
implements FrameAnnotater, java.util.Observer

An AE filter that filters for a range of x,y,type address. These values are persistent and can be used to filter out borders of the input or particular types of input events.

Author:

tobi

Field Summary

byte	type
short	x
short	y

Fields inherited from class net.sf.jaer.eventprocessing.EventFilter2D

enclosedFilter, out

Fields inherited from class net.sf.jaer.eventprocessing.EventFilter

annotationEnabled, chip, enclosedFilterChain, filterEnabled, log, perf, propertyTooltipMap, support

Constructor Summary

XYCenterOutFilter(AEChip chip)

Method Summary

void	annotate(float[][][] frame) annotate the RGB frame somehow by color pixels in the rendered pixel frame data.
void	annotate(javax.media.opengl.GLAutoDrawable drawable) Each annotator enters annotate with graphics context current, in coordinates with pixel 0,0 in LL corner (note opposite from Java2D) and pixel spacing 1 unit after the scaling transform (which is already active).
void	annotate(java.awt.Graphics2D g) each annotator is called by the relevant class (e.g.
EventPacket	filterPacket(EventPacket in) filters in to out.
int	getEndType()
int	getEndX()
int	getEndY()
java.lang.Object	getFilterState() should return the filter state in some useful form
int	getStartType()
int	getStartX()
int	getStartY()
void	initFilter() this should allocate and initialize memory: it may be called when the chip e.g.
boolean	isGeneratingFilter()
boolean	isTypeEnabled()
boolean	isXEnabled()
boolean	isYEnabled()
void	resetFilter() should reset the filter to initial state
void	setEndType(int endType)
void	setEndX(int endX)
void	setEndY(int endY)
void	setStartType(int startType)
void	setStartX(int startX)
void	setStartY(int startY)
void	setTypeEnabled(boolean typeEnabled)
void	setXEnabled(boolean xEnabled)
void	setYEnabled(boolean yEnabled)
void	update(java.util.Observable o, java.lang.Object arg)

Methods inherited from class net.sf.jaer.eventprocessing.EventFilter2D

checkOutputPacketEventType, checkOutputPacketEventType, getEnclosedFilter, resetOut, setEnclosedFilter, setFilterEnabled

Methods inherited from class net.sf.jaer.eventprocessing.EventFilter

getChip, getDescription, getEnclosedFilterChain, getEnclosingFilter, getPrefs, getPropertyChangeSupport, getPropertyTooltip, isAnnotationEnabled, isEnclosed, isFilterEnabled, prefsEnabledKey, setAnnotationEnabled, setChip, setEnclosed, setEnclosedFilter, setEnclosedFilterChain, setEnclosingFilter, setPreferredEnabledState, setPrefs, setPropertyTooltip

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sf.jaer.graphics.FrameAnnotater

isAnnotationEnabled, setAnnotationEnabled

Field Detail

x

public short x

y

public short y

type

public byte type

Constructor Detail

XYCenterOutFilter

public XYCenterOutFilter(AEChip chip)

Method Detail

isGeneratingFilter

public boolean isGeneratingFilter()

filterPacket

public EventPacket filterPacket(EventPacket in)

filters in to out. if filtering is enabled, the number of out may be less than the number put in

Specified by:

filterPacket in class EventFilter2D

Parameters:

in - input events can be null or empty.

Returns:

the processed events, may be fewer in number. filtering may occur in place in the in packet.

getFilterState

public java.lang.Object getFilterState()

Description copied from class: EventFilter

should return the filter state in some useful form

Specified by:

getFilterState in class EventFilter

resetFilter

public void resetFilter()

Description copied from class: EventFilter

should reset the filter to initial state

Specified by:

resetFilter in class EventFilter

initFilter

public void initFilter()

Description copied from class: EventFilter

this should allocate and initialize memory: it may be called when the chip e.g. size parameters are changed after creation of the filter

Specified by:

initFilter in class EventFilter

getStartX

public int getStartX()

setStartX

public void setStartX(int startX)

getEndX

public int getEndX()

setEndX

public void setEndX(int endX)

isXEnabled

public boolean isXEnabled()

setXEnabled

public void setXEnabled(boolean xEnabled)

getStartY

public int getStartY()

setStartY

public void setStartY(int startY)

getEndY

public int getEndY()

setEndY

public void setEndY(int endY)

isYEnabled

public boolean isYEnabled()

setYEnabled

public void setYEnabled(boolean yEnabled)

getStartType

public int getStartType()

setStartType

public void setStartType(int startType)

getEndType

public int getEndType()

setEndType

public void setEndType(int endType)

isTypeEnabled

public boolean isTypeEnabled()

setTypeEnabled

public void setTypeEnabled(boolean typeEnabled)

annotate

public void annotate(float[][][] frame)

Description copied from interface: FrameAnnotater

annotate the RGB frame somehow by color pixels in the rendered pixel frame data.

Specified by:

annotate in interface FrameAnnotater

Parameters:

frame - the RGB pixel information. First dimension is Y, second is X, third is RGB

annotate

public void annotate(java.awt.Graphics2D g)

Description copied from interface: FrameAnnotater

each annotator is called by the relevant class (e.g. EyeTracker) and enters annotate with graphics context current, in coordinates with pixel 0,0 in UL corner and pixel spacing 1 unit before scaling transform (which is already active).

Specified by:

annotate in interface FrameAnnotater

Parameters:

g - the Graphics2D context

annotate

public void annotate(javax.media.opengl.GLAutoDrawable drawable)

Description copied from interface: FrameAnnotater

Each annotator enters annotate with graphics context current, in coordinates with pixel 0,0 in LL corner (note opposite from Java2D) and pixel spacing 1 unit after the scaling transform (which is already active). The FrameAnnotater then can use JOGL calls to render to the screen by getting the GL context, e.g. the following code, used in the context of an AEChip object, draws a golden lines from LL to UR of the pixel array.

        GL gl = drawable.getGL();
        gl.glBegin(GL.GL_LINES);
        gl.glColor3f(.5f, .5f, 0);
        gl.glVertex2f(0, 0);
        gl.glVertex2f(getSizeX() - 1, getSizeY() - 1);
        gl.glEnd();
 

Specified by:

annotate in interface FrameAnnotater

Parameters:

drawable - the OpenGL drawable components, e.g., GLCanvas

update

public void update(java.util.Observable o,
                   java.lang.Object arg)

Specified by:

update in interface java.util.Observer