/*
* #%L
* ImgLib2: a general-purpose, multidimensional image processing library.
* %%
* Copyright (C) 2009 - 2014 Stephan Preibisch, Tobias Pietzsch, Barry DeZonia,
* Stephan Saalfeld, Albert Cardona, Curtis Rueden, Christian Dietz, Jean-Yves
* Tinevez, Johannes Schindelin, Lee Kamentsky, Larry Lindsey, Grant Harris,
* Mark Hiner, Aivar Grislis, Martin Horn, Nick Perry, Michael Zinsmaier,
* Steffen Jaensch, Jan Funke, Mark Longair, and Dimiter Prodanov.
* %%
* 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"
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*/
package net.imglib2.display.projector.volatiles;
import net.imglib2.Cursor;
import net.imglib2.FinalInterval;
import net.imglib2.IterableInterval;
import net.imglib2.RandomAccess;
import net.imglib2.RandomAccessible;
import net.imglib2.RandomAccessibleInterval;
import net.imglib2.Volatile;
import net.imglib2.converter.Converter;
import net.imglib2.display.projector.IterableIntervalProjector2D;
import net.imglib2.view.Views;
/**
* {@link XYRandomAccessibleProjector} for {@link Volatile} input. After each
* {@link #map()} call, the projector has a {@link #isValid() state} that
* signalizes whether all projected pixels were valid.
*
* @author Stephan Saalfeld <saalfeld@mpi-cbg.de>
*/
public class Volatile2DRandomAccessibleProjector< T, A extends Volatile< T >, B > extends IterableIntervalProjector2D< A, B >
{
protected boolean valid = false;
public Volatile2DRandomAccessibleProjector( final int dimX, final int dimY, final RandomAccessible< A > source, final RandomAccessibleInterval< B > target, final Converter< ? super A, B > converter )
{
super( dimX, dimY, source, Views.iterable( target ), converter );
}
/**
* @return true if all mapped pixels were {@link Volatile#isValid() valid}.
*/
public boolean isValid()
{
return valid;
}
/**
* projects data from the source to the target and applies the former
* specified {@link Converter} e.g. for normalization.
*/
@Override
public void map()
{
// fix interval for all dimensions
for ( int d = 0; d < position.length; ++d )
min[ d ] = max[ d ] = position[ d ];
min[ X ] = target.min( X );
min[ Y ] = target.min( Y );
max[ X ] = target.max( X );
max[ Y ] = target.max( Y );
final IterableInterval< A > srcIterable = Views.iterable( Views.interval( source, new FinalInterval( min, max ) ) );
final Cursor< B > targetCursor = target.localizingCursor();
if ( target.iterationOrder().equals( srcIterable.iterationOrder() ) )
{
// use cursors
final Cursor< A > sourceCursor = srcIterable.cursor();
while ( targetCursor.hasNext() )
{
converter.convert( sourceCursor.next(), targetCursor.next() );
}
}
else
{
// use localizing cursor
final RandomAccess< A > sourceRandomAccess = source.randomAccess();
while ( targetCursor.hasNext() )
{
final B b = targetCursor.next();
sourceRandomAccess.setPosition( targetCursor.getLongPosition( X ), X );
sourceRandomAccess.setPosition( targetCursor.getLongPosition( Y ), Y );
converter.convert( sourceRandomAccess.get(), b );
}
}
}
}