ch.unizh.ini.jaer.projects.opticalflow.chip
Class MotionData

java.lang.Object
  ch.unizh.ini.jaer.projects.opticalflow.chip.MotionData

public class MotionData
extends java.lang.Object

Packs data returned from optical flow sensor. Values are floats that which are normalized as follows: all values are returned in range 0-1 float. Motion signals are centered around 0.5f. Global outputs are not - they are just from corner of chip.

Author:

tobi

Field Summary

static int	ADC_RESOLUTION_BITS the resolution of the SiLabs_8051F320 ADC
static int	GLOBAL_X Bit definitions for what this structure holds.
static int	GLOBAL_Y Bit definitions for what this structure holds.
static int	OBJECT_SIZE The serialized size in bytes of a MotionData instance
static int	PHOTO Bit definitions for what this structure holds.
static int	UX Bit definitions for what this structure holds.
static int	UY Bit definitions for what this structure holds.

Constructor Summary

MotionData()
Creates a new instance of MotionData

Method Summary

int	getContents() returns the contents field, whose bits show what data is valid in this buffer
float	getGlobalX()
float	getGlobalY()
static int	getLength()
float	getMaxph()
float	getMaxus()
float	getMaxuy()
float	getMinph()
float	getMinux()
float	getMinuy()
float[][]	getPh()
int	getSequenceNumber() returns the sequence number of this data
long	getTimeCapturedMs() gets the system time that the data was captured
float[][]	getUx()
float[][]	getUy()
boolean	hasGlobalX()
boolean	hasGlobalY()
boolean	hasLocalX()
boolean	hasLocalY()
boolean	hasPhoto()
void	read(java.io.DataInput in) Implements the reader half of the Externalizable interface
void	setContents(int contents)
void	setGlobalX(float globalX)
void	setGlobalY(float globalY)
void	setMaxph(float maxph)
void	setMaxus(float maxus)
void	setMaxuy(float maxuy)
void	setMinph(float minph)
void	setMinux(float minux)
void	setMinuy(float minuy)
void	setPh(float[][] ph)
void	setSequenceNumber(int sequenceNumber)
void	setTimeCapturedMs(long timeCapturedMs)
void	setUx(float[][] ux)
void	setUy(float[][] uy)
java.lang.String	toString()
void	write(java.io.DataOutput out) Implements the Externalizable writer in conjuction with the reader.

Methods inherited from class java.lang.Object

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

Field Detail

GLOBAL_X

public static final int GLOBAL_X

Bit definitions for what this structure holds. User sets these bits to tell the hardware interface what data should be acquired for this buffer

See Also:

Constant Field Values

GLOBAL_Y

public static final int GLOBAL_Y

Bit definitions for what this structure holds. User sets these bits to tell the hardware interface what data should be acquired for this buffer

See Also:

Constant Field Values

PHOTO

public static final int PHOTO

Bit definitions for what this structure holds. User sets these bits to tell the hardware interface what data should be acquired for this buffer

See Also:

Constant Field Values

UX

public static final int UX

Bit definitions for what this structure holds. User sets these bits to tell the hardware interface what data should be acquired for this buffer

See Also:

Constant Field Values

UY

public static final int UY

Bit definitions for what this structure holds. User sets these bits to tell the hardware interface what data should be acquired for this buffer

See Also:

Constant Field Values

ADC_RESOLUTION_BITS

public static final int ADC_RESOLUTION_BITS

the resolution of the SiLabs_8051F320 ADC

See Also:

Constant Field Values

OBJECT_SIZE

public static int OBJECT_SIZE

The serialized size in bytes of a MotionData instance

Constructor Detail

MotionData

public MotionData()

Creates a new instance of MotionData

Method Detail

getLength

public static final int getLength()

Returns:

total number of independent data

getSequenceNumber

public final int getSequenceNumber()

returns the sequence number of this data

Returns:

the sequence number, starting at 0 with the first data captured by the reader

setSequenceNumber

public final void setSequenceNumber(int sequenceNumber)

getGlobalX

public final float getGlobalX()

setGlobalX

public final void setGlobalX(float globalX)

getGlobalY

public final float getGlobalY()

setGlobalY

public final void setGlobalY(float globalY)

getPh

public final float[][] getPh()

setPh

public final void setPh(float[][] ph)

getUx

public final float[][] getUx()

setUx

public final void setUx(float[][] ux)

getUy

public final float[][] getUy()

setUy

public final void setUy(float[][] uy)

getContents

public final int getContents()

returns the contents field, whose bits show what data is valid in this buffer

setContents

public final void setContents(int contents)

getMinph

public float getMinph()

setMinph

public void setMinph(float minph)

getMaxph

public float getMaxph()

setMaxph

public void setMaxph(float maxph)

getMinux

public float getMinux()

setMinux

public void setMinux(float minux)

getMaxus

public float getMaxus()

setMaxus

public void setMaxus(float maxus)

getMinuy

public float getMinuy()

setMinuy

public void setMinuy(float minuy)

getMaxuy

public float getMaxuy()

setMaxuy

public void setMaxuy(float maxuy)

hasGlobalX

public boolean hasGlobalX()

hasGlobalY

public boolean hasGlobalY()

hasPhoto

public boolean hasPhoto()

hasLocalX

public boolean hasLocalX()

hasLocalY

public boolean hasLocalY()

getTimeCapturedMs

public long getTimeCapturedMs()

gets the system time that the data was captured

Returns:

the time in ms as returned by System.currentTimeMillis()

setTimeCapturedMs

public void setTimeCapturedMs(long timeCapturedMs)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

write

public void write(java.io.DataOutput out)
           throws java.io.IOException

Implements the Externalizable writer in conjuction with the reader. Each MotionData object is written as follows:
out.writeInt(contents);
out.writeInt(sequenceNumber);
out.writeLong(timeCapturedMs);
write2DArray(out,ph);
write2DArray(out,ux);
write2DArray(out,uy);

Parameters:

out - the output

Throws:

java.io.IOException

read

public void read(java.io.DataInput in)
          throws java.io.IOException

Implements the reader half of the Externalizable interface

Parameters:

in - the ObjectInput interface

Throws:

java.io.IOException