com.emphysic.myriad.core.data.ops

Class SlidingWindowOperation

java.lang.Object

com.emphysic.myriad.core.data.ops.SlidingWindowOperation

All Implemented Interfaces:

DatasetOperation, ObjectMap, com.esotericsoftware.kryo.KryoSerializable

public class SlidingWindowOperation
extends java.lang.Object
implements DatasetOperation

SlidingWindowOperation - moves a "window" across a Dataset.

Constructor Summary

Constructors

Constructor and Description
SlidingWindowOperation() Creates a new SlidingWindowOperation with a 5x5 window and stepsize 5.
SlidingWindowOperation(int stepSize, int windowWidth) Creates a new SlidingWindowOperation.
SlidingWindowOperation(int stepSize, int windowSize, DatasetOperation op)
SlidingWindowOperation(int stepSize, int windowWidth, int windowHeight)
SlidingWindowOperation(int stepSize, int windowWidth, int windowHeight, DatasetOperation op) Creates a new SlidingWindowOperation.

Method Summary

Modifier and Type	Method and Description
java.util.Map<java.lang.String,java.lang.Object>	getObjectMap() Creates a map of the important fields for the instance, suitable for serialization.
DatasetOperation	getOp() Returns the DatasetOperation performed on each window.
long	getSerializationVersion() Returns the current version of the serialization format.
int	getStepSize() Returns the number of points moved between windows.
int	getVersion() Returns the current class version.
int	getWindowHeight() Returns the size of the square window in points.
int	getWindowWidth() Returns the size of the square window in points.
int	getXoffset() Returns the current horizontal offset of the sliding window.
int	getYoffset() Returns the current vertical offset of the sliding window.
void	initCurrentVersion(java.util.Map<java.lang.String,java.lang.Object> objectMap) Initializes an instance with a current-version object graph.
Dataset	run(Dataset input) Slides across the input Dataset.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.emphysic.myriad.core.data.util.ObjectMap

init, initPreviousVersion, initUnknownVersion, load, read, save, write

Constructor Detail

SlidingWindowOperation

public SlidingWindowOperation(int stepSize,
                              int windowWidth,
                              int windowHeight,
                              DatasetOperation op)

Creates a new SlidingWindowOperation.

Parameters:

stepSize - points to move between windows

windowWidth - width of window

windowHeight - height of window

op - for each window in the Dataset, perform this operation on the contents

SlidingWindowOperation

public SlidingWindowOperation(int stepSize,
                              int windowSize,
                              DatasetOperation op)

SlidingWindowOperation

public SlidingWindowOperation(int stepSize,
                              int windowWidth,
                              int windowHeight)

SlidingWindowOperation

public SlidingWindowOperation(int stepSize,
                              int windowWidth)

Creates a new SlidingWindowOperation. No operations performed on the windows.

Parameters:

stepSize - points to move between windows

windowWidth - use a window of windowWidth x windowWidth points

SlidingWindowOperation

public SlidingWindowOperation()

Creates a new SlidingWindowOperation with a 5x5 window and stepsize 5. No operations performed on the windows.

Method Detail

run

public Dataset run(Dataset input)

Slides across the input Dataset. If the instance's op is not null, returns the results of performing the operation on the window, otherwise returns the window itself.

Specified by:

run in interface DatasetOperation

Parameters:

input - Dataset on which to operate

Returns:

Dataset of window contents, or null if slide is complete or input was null.

getXoffset

public int getXoffset()

Returns the current horizontal offset of the sliding window.

Returns:

current offset

getYoffset

public int getYoffset()

Returns the current vertical offset of the sliding window.

Returns:

current offset

getStepSize

public int getStepSize()

Returns the number of points moved between windows.

Returns:

step size

getWindowWidth

public int getWindowWidth()

Returns the size of the square window in points.

Returns:

window size

getWindowHeight

public int getWindowHeight()

Returns the size of the square window in points.

Returns:

window size

getOp

public DatasetOperation getOp()

Returns the DatasetOperation performed on each window.

Returns:

DatasetOperation or null if not set

getSerializationVersion

public long getSerializationVersion()

Description copied from interface: ObjectMap

Returns the current version of the serialization format. Increments when the serialization format changes, i.e. backwards compatibility is broken.

Specified by:

getSerializationVersion in interface ObjectMap

Returns:

serialization version

getVersion

public int getVersion()

Description copied from interface: ObjectMap

Returns the current class version. Class version increments when the class changes but doesn't necessarily break compatibility with serialization.

Specified by:

getVersion in interface ObjectMap

Returns:

class version

getObjectMap

public java.util.Map<java.lang.String,java.lang.Object> getObjectMap()

Description copied from interface: ObjectMap

Creates a map of the important fields for the instance, suitable for serialization.

Specified by:

getObjectMap in interface ObjectMap

Returns:

"object map" of the instance

initCurrentVersion

public void initCurrentVersion(java.util.Map<java.lang.String,java.lang.Object> objectMap)

Description copied from interface: ObjectMap

Initializes an instance with a current-version object graph.

Specified by:

initCurrentVersion in interface ObjectMap

Parameters:

objectMap - object graph for initialization