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package de.lmu.ifi.dbs.elki.data.uncertain;
/*
This file is part of ELKI:
Environment for Developing KDD-Applications Supported by Index-Structures
Copyright (C) 2015
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 java.util.Random;
import de.lmu.ifi.dbs.elki.data.DoubleVector;
import de.lmu.ifi.dbs.elki.data.FeatureVector;
import de.lmu.ifi.dbs.elki.data.spatial.SpatialComparable;
/**
* Interface for uncertain objects.
*
* Uncertain objects <em>must</em> provide a bounding box in this model, and
* have an option to randomly sample from the data.
*
* TODO: Eventually allow float precision, too.
*
* @author Erich Schubert
* @since 0.7.0
*
* @apiviz.has DoubleVector oneway - «contains/produces»
*/
public interface UncertainObject extends SpatialComparable, FeatureVector<Double> {
/**
* Draw a random sampled instance.
*
* @param rand Random generator
* @return Sampled object.
*/
DoubleVector drawSample(Random rand);
/**
* Get the center of mass of the uncertain object.
*
* @return Center of mass.
*/
DoubleVector getCenterOfMass();
}
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