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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) 2012
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;
/**
* Interface for projections that have a specialization to only compute the first component.
*
* @author Erich Schubert
*
* @apiviz.landmark
*/
public interface Projection1D extends Projection {
/**
* Project a data vector from data space to rendering space.
*
* @param data vector in data space
* @return vector in rendering space
*/
public double fastProjectDataToRenderSpace(Vector data);
/**
* Project a data vector from data space to rendering space.
*
* @param data vector in data space
* @return vector in rendering space
*/
public double fastProjectDataToRenderSpace(NumberVector<?, ?> data);
/**
* Project a vector from scaled space to rendering space.
*
* @param v vector in scaled space
* @return vector in rendering space
*/
public double fastProjectScaledToRender(Vector v);
/**
* Project a data vector from data space to rendering space.
*
* @param data vector in data space
* @return vector in rendering space
*/
public double fastProjectRelativeDataToRenderSpace(Vector data);
/**
* Project a data vector from data space to rendering space.
*
* @param data vector in data space
* @return vector in rendering space
*/
public double fastProjectRelativeDataToRenderSpace(NumberVector<?, ?> data);
/**
* Project a vector from scaled space to rendering space.
*
* @param v vector in scaled space
* @return vector in rendering space
*/
public double fastProjectRelativeScaledToRender(Vector v);
}
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