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CombinedSpace.java
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CombinedSpace.java
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/*
* #%L
* ImgLib2: a general-purpose, multidimensional image processing library.
* %%
* Copyright (C) 2009 - 2013 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"
* 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.
*
* The views and conclusions contained in the software and documentation are
* those of the authors and should not be interpreted as representing official
* policies, either expressed or implied, of any organization.
* #L%
*/
package net.imglib2.meta;
import java.util.ArrayList;
import net.imglib2.EuclideanSpace;
/**
* A {@code CombinedSpace} is a {@link EuclideanSpace} (specifically a
* {@link TypedSpace}) which is a union of other {@link TypedSpace}s. Common
* axes are merged as appropriate by matching the {@link AxisType}s of each
* {@link TypedAxis}.
* <p>
* For example, combining three spaces with dimensions (X, Y, Z, CHANNEL),
* (X, Y, CHANNEL, TIME) and (X, Z, LIFETIME, TIME) will result in a coordinate
* space with dimensions (X, Y, Z, CHANNEL, TIME, LIFETIME).
* </p>
*
* @author Curtis Rueden
*/
public class CombinedSpace<A extends TypedAxis, S extends TypedSpace<A>>
extends ArrayList<S> implements TypedSpace<A>
{
/** List of axis types for the combined space. */
private final ArrayList<AxisType> axisTypes = new ArrayList<AxisType>();
// -- CombinedSpace methods --
/** Recomputes the combined space based on its current constituents. */
public void update() {
axisTypes.clear();
for (final TypedSpace<A> space : this) {
for (int d = 0; d < space.numDimensions(); d++) {
final AxisType axisType = space.axis(d).type();
if (!axisTypes.contains(axisType)) {
// new axis; add to the list
axisTypes.add(axisType);
}
}
}
}
// -- TypedSpace methods --
@Override
public int dimensionIndex(final AxisType axis) {
return axisTypes.indexOf(axis);
}
// -- AnnotatedSpace methods --
@Override
public A axis(final int d) {
final AxisType type = axisTypes.get(d);
// find the first axis of a constituent space that matches the type
for (final TypedSpace<A> space : this) {
final int id = space.dimensionIndex(type);
if (id < 0) continue;
return space.axis(id);
}
throw new IllegalStateException("No compatible constituent space");
}
@Override
public void axes(final A[] axes) {
for (int i = 0; i < axes.length; i++)
axes[i] = axis(i);
}
@Override
public void setAxis(final A axis, final int d) {
final AxisType type = axisTypes.get(d);
// assign the axis to all constituent spaces of matching type
for (final TypedSpace<A> space : this) {
final int id = space.dimensionIndex(type);
if (id < 0) continue;
space.setAxis(axis, id);
}
}
// -- EuclideanSpace methods --
@Override
public int numDimensions() {
return axisTypes.size();
}
}