Package net.imglib2.img.array

Class ArrayImg<T extends NativeType<T>,​A extends DataAccess>

    • Field Detail

      • steps

        final int[] steps

      • dim

        final int[] dim

    • Constructor Detail

      • ArrayImg

        public ArrayImg​(A data,
                long[] dim,
                Fraction entitiesPerPixel)

      • ArrayImg

        @Deprecated
public ArrayImg​(java.lang.Object data,
                long[] dim,
                Fraction entitiesPerPixel)
        Deprecated.
        Deprecated constructor for binary compatibility when A was not bounded by DataAccess
        Parameters:
        data - - will be cast to DataAccess type A
        dim -
        entitiesPerPixel -

    • Method Detail

      • update

        public A update​(java.lang.Object o)
        Description copied from interface: NativeImg
        called by type with cursor.
        Specified by:
        update in interface NativeImg<T extends NativeType<T>,​A extends DataAccess>
        Parameters:
        o - cursor
        Returns:
        native array which is referred to by the updater

      • randomAccess

        public ArrayRandomAccess<T> 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<T extends NativeType<T>>
        Returns:
        random access sampler

      • randomAccess

        public ArrayRandomAccess<T> 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<T extends NativeType<T>>
        Overrides:
        randomAccess in class AbstractImg<T extends NativeType<T>>
        Parameters:
        interval - in which interval you intend to use the random access.
        Returns:
        random access sampler

      • factory

        public ArrayImgFactory<T> factory()
        Description copied from interface: Img
        Get a ImgFactory that creates Imgs of the same kind as this one. This is useful to create Imgs for temporary storage in generic methods where the specific Img type is unknown. Note, that the factory can be used even if all references to this Img have been invalidated.
        Specified by:
        factory in interface Img<T extends NativeType<T>>
        Returns:
        a factory for Imgs of the same kind as this one.

      • copy

        public ArrayImg<T,​?> copy()
        Specified by:
        copy in interface Img<T extends NativeType<T>>
        Returns:
        - A copy of the current Img instance, all pixels are duplicated

      • size

        private long size​(Interval interval,
                  int length)

      • offset

        private long offset​(Interval interval)

      • fastCursorAvailable

        private int fastCursorAvailable​(Interval interval)
        If method returns -1 no fast cursor is available, else the amount of dims (starting from zero) which can be iterated fast are returned.