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A multidimensional, type-agnostic image processing library.
/*
* #%L
* ImgLib2: a general-purpose, multidimensional image processing library.
* %%
* Copyright (C) 2009 - 2018 Tobias Pietzsch, Stephan Preibisch, Stephan Saalfeld,
* John Bogovic, Albert Cardona, Barry DeZonia, Christian Dietz, Jan Funke,
* Aivar Grislis, Jonathan Hale, Grant Harris, Stefan Helfrich, Mark Hiner,
* Martin Horn, Steffen Jaensch, Lee Kamentsky, Larry Lindsey, Melissa Linkert,
* Mark Longair, Brian Northan, Nick Perry, Curtis Rueden, Johannes Schindelin,
* Jean-Yves Tinevez and Michael Zinsmaier.
* %%
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
* #L%
*/
package net.imglib2.position.transform;
import net.imglib2.Localizable;
import net.imglib2.Positionable;
import net.imglib2.RealLocalizable;
import net.imglib2.RealPositionable;
/**
* A {@link RealPositionable} that drives a {@link Positionable} to its round
* discrete coordinates:
*
* {@code f = r < 0 ? (long)( r - 0.5 ) : (long)( r + 0.5 )}
*
* @author Stephan Saalfeld
*/
public class Round< LocalizablePositionable extends Localizable & Positionable > extends AbstractPositionableTransform< LocalizablePositionable >
{
public Round( final LocalizablePositionable target )
{
super( target );
}
public Round( final RealLocalizable origin, final LocalizablePositionable target )
{
super( target );
origin.localize( position );
for ( int d = 0; d < n; ++d )
discrete[ d ] = round( position[ d ] );
target.setPosition( discrete );
}
public static final long round( final double r )
{
return r < 0 ? ( long ) ( r - 0.5 ) : ( long ) ( r + 0.5 );
}
public static final long round( final float r )
{
return r < 0 ? ( long ) ( r - 0.5f ) : ( long ) ( r + 0.5f );
}
public static final void round( final double[] r, final long[] f )
{
for ( int d = 0; d < r.length; ++d )
f[ d ] = round( r[ d ] );
}
public static final void round( final float[] r, final long[] f )
{
for ( int d = 0; d < r.length; ++d )
f[ d ] = round( r[ d ] );
}
public static final void round( final RealLocalizable r, final long[] f )
{
for ( int d = 0; d < f.length; ++d )
f[ d ] = round( r.getDoublePosition( d ) );
}
/* RealPositionable */
@Override
public void move( final float distance, final int d )
{
final double realPosition = position[ d ] + distance;
final long roundPosition = round( realPosition );
position[ d ] = realPosition;
final long roundDistance = roundPosition - target.getIntPosition( d );
if ( roundDistance == 0 )
return;
target.move( roundDistance, d );
}
@Override
public void move( final double distance, final int d )
{
final double realPosition = position[ d ] + distance;
final long roundPosition = round( realPosition );
position[ d ] = realPosition;
final long roundDistance = roundPosition - target.getIntPosition( d );
if ( roundDistance == 0 )
return;
target.move( roundDistance, d );
}
@Override
public void move( final RealLocalizable localizable )
{
for ( int d = 0; d < n; ++d )
{
final double realPosition = position[ d ] + localizable.getDoublePosition( d );
final long floorPosition = round( realPosition );
position[ d ] = realPosition;
discrete[ d ] = floorPosition - target.getLongPosition( d );
}
target.move( discrete );
}
@Override
public void move( final float[] distance )
{
for ( int d = 0; d < n; ++d )
{
final double realPosition = position[ d ] + distance[ d ];
final long floorPosition = round( realPosition );
position[ d ] = realPosition;
discrete[ d ] = floorPosition - target.getLongPosition( d );
}
target.move( discrete );
}
@Override
public void move( final double[] distance )
{
for ( int d = 0; d < n; ++d )
{
final double realPosition = position[ d ] + distance[ d ];
final long floorPosition = round( realPosition );
position[ d ] = realPosition;
discrete[ d ] = floorPosition - target.getLongPosition( d );
}
target.move( discrete );
}
@Override
public void setPosition( final RealLocalizable localizable )
{
for ( int d = 0; d < n; ++d )
{
position[ d ] = localizable.getDoublePosition( d );
discrete[ d ] = round( position[ d ] );
}
target.setPosition( discrete );
}
@Override
public void setPosition( final float[] pos )
{
for ( int d = 0; d < n; ++d )
{
final float realPosition = pos[ d ];
position[ d ] = realPosition;
discrete[ d ] = round( realPosition );
}
target.setPosition( discrete );
}
@Override
public void setPosition( final double[] pos )
{
for ( int d = 0; d < n; ++d )
{
final double realPosition = pos[ d ];
position[ d ] = realPosition;
discrete[ d ] = round( realPosition );
}
target.setPosition( discrete );
}
@Override
public void setPosition( final float position, final int d )
{
this.position[ d ] = position;
target.setPosition( round( position ), d );
}
@Override
public void setPosition( final double position, final int d )
{
this.position[ d ] = position;
target.setPosition( round( position ), d );
}
}