public class AffineRandomAccessible<T,R extends AffineGet> extends RealTransformRandomAccessible<T,R>
RandomAccessible whose samples are generated by rasterizing a
RealRandomAccessible transformed by an affine
transformation. Changing the affine transformation will
affect the AffineRandomAccessible but not any existing
RandomAccess on it because each RandomAccess internally
works with a copy of the transform. Make sure that you request a new
RandomAccess after modifying the transformation.| Modifier and Type | Class and Description |
|---|---|
class |
AffineRandomAccessible.AffineRandomAccess
RealRandomAccess that generates its samples from a source
RealRandomAccessible at coordinates transformed by a
RealTransform. |
RealTransformRandomAccessible.RealTransformRandomAccessRealTransformRealRandomAccessible.RealTransformRealRandomAccesssource, transformToSource| Constructor and Description |
|---|
AffineRandomAccessible(RealRandomAccessible<T> source,
R transformToSource) |
| Modifier and Type | Method and Description |
|---|---|
AffineRandomAccessible.AffineRandomAccess |
randomAccess()
Create a random access sampler for integer coordinates.
|
AffineRandomAccessible.AffineRandomAccess |
randomAccess(Interval interval)
To be overridden for
RealTransform that can estimate the
boundaries of a transferred RealInterval. |
getSource, getTransformToSource, numDimensions, realRandomAccess, realRandomAccessclone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitgetAt, getAt, getAtnumDimensionsgetAt, getAt, getAtpublic AffineRandomAccessible(RealRandomAccessible<T> source, R transformToSource)
public AffineRandomAccessible.AffineRandomAccess randomAccess()
RandomAccessibleThe 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.
randomAccess in interface RandomAccessible<T>randomAccess in class RealTransformRandomAccessible<T,R extends AffineGet>public AffineRandomAccessible.AffineRandomAccess randomAccess(Interval interval)
RealTransform that can estimate the
boundaries of a transferred RealInterval.randomAccess in interface RandomAccessible<T>randomAccess in class RealTransformRandomAccessible<T,R extends AffineGet>interval - in which interval you intend to use the random access.Copyright © 2015–2022 ImgLib2. All rights reserved.