Examples of 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

Examples of net.imglib2.transform.integer.MixedTransform

      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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Examples of net.imglib2.transform.integer.MixedTransform

    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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Examples of net.imglib2.transform.integer.MixedTransform

   *            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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Examples of net.imglib2.transform.integer.MixedTransform

   *            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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Examples of net.imglib2.transform.integer.MixedTransform

    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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Examples of net.imglib2.transform.integer.MixedTransform

   */
  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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Examples of net.imglib2.transform.integer.MixedTransform

   */
  public static < T > MixedTransformView< T > addDimension( final RandomAccessible< T > randomAccessible )
  {
    final int m = randomAccessible.numDimensions();
    final int n = m + 1;
    final MixedTransform t = new MixedTransform( n, m );
    return new MixedTransformView< T >( randomAccessible, t );
  }

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Examples of net.imglib2.transform.integer.MixedTransform

  public static < T > MixedTransformView< T > invertAxis( final RandomAccessible< T > randomAccessible, final int d )
  {
    final int n = randomAccessible.numDimensions();
    final boolean[] inv = new boolean[ n ];
    inv[ d ] = true;
    final MixedTransform t = new MixedTransform( n, n );
    t.setComponentInversion( inv );
    return new MixedTransformView< T >( randomAccessible, t );
  }

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Examples of net.imglib2.transform.integer.MixedTransform

    }
    else
    {
      this.source = source;
      final int sourceDim = this.source.numDimensions();
      this.transformToSource = new MixedTransform( n, sourceDim );
      this.transformToSource.set( transformToSource );
    }


    fullViewRandomAccessible = null;
  }

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Examples of net.imglib2.transform.integer.MixedTransform

    {
      System.out.println( "incompatible dimensions" );
      return false;
    }


    final MixedTransform t1t2 = t1.concatenate( t2 );


    final Matrix mt1 = new Matrix( t1.getMatrix() );
    final Matrix mt2 = new Matrix( t2.getMatrix() );
    final Matrix mt1t2 = new Matrix( t1t2.getMatrix() );


    if ( mt1.times( mt2 ).minus( mt1t2 ).normF() > 0.1 )
    {
      System.out.println( "=======================" );
      System.out.println( "t1: " + t1.numSourceDimensions() + " -> " + t1.numTargetDimensions() + " (n -> m)" );
      System.out.println( "t2: " + t2.numSourceDimensions() + " -> " + t2.numTargetDimensions() + " (n -> m)" );
      System.out.println( "t1t2: " + t1t2.numSourceDimensions() + " -> " + t1t2.numTargetDimensions() + " (n -> m)" );


      System.out.print( "t1 = " );
      mt1.print( 1, 0 );
      System.out.print( "t2 = " );
      mt2.print( 1, 0 );

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