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package de.lmu.ifi.dbs.elki.visualization.projections;
/*
This file is part of ELKI:
Environment for Developing KDD-Applications Supported by Index-Structures
Copyright (C) 2011
Ludwig-Maximilians-Universität München
Lehr- und Forschungseinheit für Datenbanksysteme
ELKI Development Team
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import de.lmu.ifi.dbs.elki.data.NumberVector;
import de.lmu.ifi.dbs.elki.math.linearalgebra.Vector;
import de.lmu.ifi.dbs.elki.visualization.scales.LinearScale;
import de.lmu.ifi.dbs.elki.visualization.style.StyleLibrary;
/**
* Base interface used for projections in the ELKI visualizers.
*
* There are specialized interfaces for 1D and 2D that only compute the
* projections in the required dimensions!
*
* @author Erich Schubert
*
* @apiviz.landmark
*
* @apiviz.composedOf LinearScale
* @apiviz.uses NumberVector
* @apiviz.uses Vector
*/
public interface Projection {
/**
* Scaling constant. Keep in sync with
* {@link de.lmu.ifi.dbs.elki.visualization.style.StyleLibrary#SCALE}.
*/
public static final double SCALE = StyleLibrary.SCALE;
/**
* Get the scale class for a particular dimension.
*
* @param d Dimension
* @return Scale class
*/
public LinearScale getScale(int d);
/**
* Project a vector from scaled space to rendering space.
*
* @param v vector in scaled space
* @return vector in rendering space
*/
public Vector projectScaledToRender(Vector v);
/**
* Project a vector from rendering space to scaled space.
*
* @param v vector in rendering space
* @return vector in scaled space
*/
public Vector projectRenderToScaled(Vector v);
/**
* Project a relative vector from scaled space to rendering space.
*
* @param v relative vector in scaled space
* @return relative vector in rendering space
*/
public Vector projectRelativeScaledToRender(Vector v);
/**
* Project a relative vector from rendering space to scaled space.
*
* @param v relative vector in rendering space
* @return relative vector in scaled space
*/
public Vector projectRelativeRenderToScaled(Vector v);
/**
* Project a data vector from data space to scaled space.
*
* @param data vector in data space
* @return vector in scaled space
*/
public Vector projectDataToScaledSpace(NumberVector<?, ?> data);
/**
* Project a data vector from data space to scaled space.
*
* @param data vector in data space
* @return vector in scaled space
*/
public Vector projectDataToScaledSpace(Vector data);
/**
* Project a relative data vector from data space to scaled space.
*
* @param data relative vector in data space
* @return relative vector in scaled space
*/
public Vector projectRelativeDataToScaledSpace(NumberVector<?, ?> data);
/**
* Project a relative data vector from data space to scaled space.
*
* @param data relative vector in data space
* @return relative vector in scaled space
*/
public Vector projectRelativeDataToScaledSpace(Vector data);
/**
* Project a data vector from data space to rendering space.
*
* @param data vector in data space
* @return vector in rendering space
*/
public Vector projectDataToRenderSpace(NumberVector<?, ?> data);
/**
* Project a data vector from data space to rendering space.
*
* @param data vector in data space
* @return vector in rendering space
*/
public Vector projectDataToRenderSpace(Vector data);
/**
* Project a vector from scaled space to data space.
*
* @param <NV> Vector type
* @param v vector in scaled space
* @param factory Object factory
* @return vector in data space
*/
public <NV extends NumberVector<NV, ?>> NV projectScaledToDataSpace(Vector v, NV factory);
/**
* Project a vector from rendering space to data space.
*
* @param <NV> Vector type
* @param v vector in rendering space
* @param prototype Object factory
* @return vector in data space
*/
public <NV extends NumberVector<NV, ?>> NV projectRenderToDataSpace(Vector v, NV prototype);
/**
* Project a relative data vector from data space to rendering space.
*
* @param data relative vector in data space
* @return relative vector in rendering space
*/
public Vector projectRelativeDataToRenderSpace(NumberVector<?, ?> data);
/**
* Project a relative data vector from data space to rendering space.
*
* @param data relative vector in data space
* @return relative vector in rendering space
*/
public Vector projectRelativeDataToRenderSpace(Vector data);
/**
* Project a relative vector from scaled space to data space.
*
* @param <NV> Vector type
* @param v relative vector in scaled space
* @param prototype Object factory
* @return relative vector in data space
*/
public <NV extends NumberVector<NV, ?>> NV projectRelativeScaledToDataSpace(Vector v, NV prototype);
/**
* Project a relative vector from rendering space to data space.
*
* @param <NV> Vector type
* @param v relative vector in rendering space
* @param prototype Object factory
* @return relative vector in data space
*/
public <NV extends NumberVector<NV, ?>> NV projectRelativeRenderToDataSpace(Vector v, NV prototype);
}
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