Examples of net.imglib2.transform.integer.MixedTransform

net.imglib2.transform.integer.MixedTransform
Mixed transform allows to express common integer view transformations such as translation, rotation, rotoinversion, and projection.
It transform a n-dimensional source vector to a m-dimensional target vector, and can be represented as a m+1 × n+1 homogeneous matrix. The mixed transform can be decomposed as follows:
1. project down (discard some components of the source vector)
2. component permutation
3. component inversion
4. project up (add zero components in the target vector)
5. translation
The project down and component permutation steps are implemented by the {@link #setComponentMapping(int[]) component mapping}. This is a lookup array that specifies for each target dimension from which source dimension it is taken. Note, that it is not allowed to set this array such that a source component is mapped to several target components!
@author Tobias Pietzsch


  // this is the constructor if you want it to be a variable
  public GenericShortType( final short value )
  {
    img = null;
    dataAccess = new ShortArray( 1 );
    setValue( value );
  }

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  }


  @Override
  public CellImg< T, ShortArray, DefaultCell< ShortArray > > createShortInstance( final long[] dimensions, final Fraction entitiesPerPixel )
  {
    return createInstance( new ShortArray( 1 ), dimensions, entitiesPerPixel );
  }

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  }


  @Override
  public NativeImg< T, ShortArray > createShortInstance( final long[] dimensions, final Fraction entitiesPerPixel )
  {
    return new PlanarImg< T, ShortArray >( new ShortArray( 1 ), dimensions, entitiesPerPixel );
  }

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        }


        if ( optimizable )
        {
//          System.out.println( "interval = " + Util.printInterval( interval ) );
          final Interval sliceInterval = t.transform( new BoundingBox( interval ) ).getInterval();
//          System.out.println( "transformed interval = " + Util.printInterval( sliceInterval ) );
          if ( iterableSource.supportsOptimizedCursor( sliceInterval ) )
          {
            // check for FlatIterationOrder
            boolean flat = FlatIterationOrder.class.isInstance( iterableSource.subIntervalIterationOrder( sliceInterval ) );

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      else
      {
        component[ e ] = e;
      }
    }
    final MixedTransform t = new MixedTransform( n, n );
    t.setComponentMapping( component );
    t.setComponentInversion( inv );
    return new MixedTransformView< T >( randomAccessible, t );
  }

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    final int[] component = new int[ n ];
    for ( int e = 0; e < n; ++e )
      component[ e ] = e;
    component[ fromAxis ] = toAxis;
    component[ toAxis ] = fromAxis;
    final MixedTransform t = new MixedTransform( n, n );
    t.setComponentMapping( component );
    return new MixedTransformView< T >( randomAccessible, t );
  }

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   *            resulting view.
   */
  public static < T > MixedTransformView< T > translate( final RandomAccessible< T > randomAccessible, final long... translation )
  {
    final int n = randomAccessible.numDimensions();
    final MixedTransform t = new MixedTransform( n, n );
    t.setInverseTranslation( translation );
    return new MixedTransformView< T >( randomAccessible, t );
  }

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   *            origin of resulting view.
   */
  public static < T > MixedTransformView< T > offset( final RandomAccessible< T > randomAccessible, final long... offset )
  {
    final int n = randomAccessible.numDimensions();
    final MixedTransform t = new MixedTransform( n, n );
    t.setTranslation( offset );
    return new MixedTransformView< T >( randomAccessible, t );
  }

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    final long[] offset = new long[ n ];
    interval.min( offset );
    interval.max( max );
    for ( int d = 0; d < n; ++d )
      max[ d ] -= offset[ d ];
    final MixedTransform t = new MixedTransform( n, n );
    t.setTranslation( offset );
    return interval( new MixedTransformView< T >( interval, t ), min, max );
  }

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   */
  public static < T > MixedTransformView< T > hyperSlice( final RandomAccessible< T > view, final int d, final long pos )
  {
    final int m = view.numDimensions();
    final int n = m - 1;
    final MixedTransform t = new MixedTransform( n, m );
    final long[] translation = new long[ m ];
    translation[ d ] = pos;
    final boolean[] zero = new boolean[ m ];
    final int[] component = new int[ m ];
    for ( int e = 0; e < m; ++e )
    {
      if ( e < d )
      {
        zero[ e ] = false;
        component[ e ] = e;
      }
      else if ( e > d )
      {
        zero[ e ] = false;
        component[ e ] = e - 1;
      }
      else
      {
        zero[ e ] = true;
        component[ e ] = 0;
      }
    }
    t.setTranslation( translation );
    t.setComponentZero( zero );
    t.setComponentMapping( component );
    return new MixedTransformView< T >( view, t );
  }

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