Package net.imglib2.view

Class RandomAccessiblePair<A,B>

java.lang.Object

net.imglib2.view.RandomAccessiblePair<A,B>

All Implemented Interfaces:

EuclideanSpace, RandomAccessible<Pair<A,B>>, Typed<Pair<A,B>>

public class RandomAccessiblePair<A,B>
extends java.lang.Object
implements RandomAccessible<Pair<A,B>>

A RandomAccessible over two independent RandomAccessibles whose type is the Pair of corresponding values at the same coordinates in either of the two sources.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	RandomAccessiblePair.RandomAccess

Field Summary

Fields

Modifier and Type	Field	Description
protected RandomAccessible<A>	sourceA
protected RandomAccessible<B>	sourceB

Constructor Summary

Constructors

Constructor	Description
RandomAccessiblePair(RandomAccessible<A> sourceA, RandomAccessible<B> sourceB)

Method Summary

Modifier and Type	Method	Description
Pair<A,B>	getType()	Get an instance of T.
int	numDimensions()	Gets the space's number of dimensions.
RandomAccessiblePair.RandomAccess	randomAccess()	Create a random access sampler for integer coordinates.
RandomAccessiblePair.RandomAccess	randomAccess(Interval interval)	Create a random access sampler for integer coordinates.

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.imglib2.RandomAccessible

getAt, getAt, getAt

Field Detail

sourceA

protected final RandomAccessible<A> sourceA

sourceB

protected final RandomAccessible<B> sourceB

Constructor Detail

RandomAccessiblePair

public RandomAccessiblePair(RandomAccessible<A> sourceA,
                            RandomAccessible<B> sourceB)

Method Detail

numDimensions

public int numDimensions()

Description copied from interface: EuclideanSpace

Gets the space's number of dimensions.

Specified by:

numDimensions in interface EuclideanSpace

randomAccess

public RandomAccessiblePair.RandomAccess randomAccess()

Description copied from interface: RandomAccessible

Create a random access sampler for integer coordinates.

The returned random access covers as much of the domain as possible.

Please note: RandomAccessibleIntervals have a finite domain (their Interval), so RandomAccessible.randomAccess() is only guaranteed to cover this finite domain. This may lead to unexpected results when using Views. In the following code

 RandomAccessible<T> extended = Views.extendBorder( img )
 RandomAccessibleInterval<T> cropped = Views.interval( extended, img );
 RandomAccess<T> a1 = extended.randomAccess();
 RandomAccess<T> a2 = cropped.randomAccess();
 

The access a1 on the extended image is valid everywhere. However, somewhat counter-intuitively, the access a2 on the extended and cropped image is only valid on the interval img to which the extended image was cropped. The access is only required to cover this interval, because it is the domain of the cropped image. Views attempts to provide the fastest possible access that meets this requirement, and will therefore strip the extension. To deal with this, if you know that you need to access pixels outside the domain of the RandomAccessibleInterval, and you know that the RandomAccessibleInterval is actually defined beyond its interval boundaries, then use the RandomAccessible.randomAccess(Interval) variant and specify which interval you actually want to access. In the above example,

 RandomAccess<T> a2 = cropped.randomAccess( Intervals.expand( img, 10 ) );
 

will provide the extended access as expected.

Specified by:

randomAccess in interface RandomAccessible<A>

Returns:

random access sampler

randomAccess

public RandomAccessiblePair.RandomAccess randomAccess(Interval interval)

Description copied from interface: RandomAccessible

Create a random access sampler for integer coordinates.

The returned random access is intended to be used in the specified interval only. Thus, the RandomAccessible may provide optimized versions. If the interval is completely contained in the domain, the random access is guaranteed to provide the same values as that obtained by RandomAccessible.randomAccess() within the interval.

Specified by:

randomAccess in interface RandomAccessible<A>

Parameters:

interval - in which interval you intend to use the random access.

Returns:

random access sampler

getType

public Pair<A,B> getType()

Description copied from interface: Typed

Get an instance of T.

It should not be assumed that the returned T instance is an independent copy. In particular, repeated calls to getType() may return the same instance.

Specified by:

getType in interface Typed<A>

Returns:

an instance of T