package de.lmu.ifi.dbs.elki.visualization.projector; /* 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 . */ import java.util.ArrayList; import de.lmu.ifi.dbs.elki.data.NumberVector; import de.lmu.ifi.dbs.elki.data.type.TypeUtil; import de.lmu.ifi.dbs.elki.database.relation.Relation; import de.lmu.ifi.dbs.elki.database.relation.RelationUtil; import de.lmu.ifi.dbs.elki.result.HierarchicalResult; import de.lmu.ifi.dbs.elki.result.Result; import de.lmu.ifi.dbs.elki.result.ResultUtil; import de.lmu.ifi.dbs.elki.utilities.optionhandling.AbstractParameterizer; import de.lmu.ifi.dbs.elki.utilities.optionhandling.constraints.GreaterEqualConstraint; import de.lmu.ifi.dbs.elki.utilities.optionhandling.parameterization.Parameterization; import de.lmu.ifi.dbs.elki.utilities.optionhandling.parameters.IntParameter; /** * Produce one-dimensional projections. * * @author Erich Schubert * * @apiviz.has HistogramProjector */ public class HistogramFactory implements ProjectorFactory { /** * Maximum dimensionality. */ private int maxdim = ScatterPlotFactory.MAX_DIMENSIONS_DEFAULT; /** * Constructor. * * @param maxdim Maximum dimensionality */ public HistogramFactory(int maxdim) { super(); this.maxdim = maxdim; } @Override public void processNewResult(HierarchicalResult baseResult, Result newResult) { ArrayList> rels = ResultUtil.filterResults(newResult, Relation.class); for(Relation rel : rels) { if(TypeUtil.NUMBER_VECTOR_FIELD.isAssignableFromType(rel.getDataTypeInformation())) { @SuppressWarnings("unchecked") Relation> vrel = (Relation>) rel; final int dim = RelationUtil.dimensionality(vrel); HistogramProjector> proj = new HistogramProjector>(vrel, Math.min(dim, maxdim)); baseResult.getHierarchy().add(vrel, proj); } } } /** * Parameterization class. * * @author Erich Schubert * * @apiviz.exclude */ public static class Parameterizer extends AbstractParameterizer { /** * Stores the maximum number of dimensions to show. */ private int maxdim = ScatterPlotFactory.MAX_DIMENSIONS_DEFAULT; @Override protected void makeOptions(Parameterization config) { super.makeOptions(config); IntParameter maxdimP = new IntParameter(ScatterPlotFactory.Parameterizer.MAXDIM_ID, ScatterPlotFactory.MAX_DIMENSIONS_DEFAULT); maxdimP.addConstraint(new GreaterEqualConstraint(1)); if(config.grab(maxdimP)) { maxdim = maxdimP.intValue(); } } @Override protected HistogramFactory makeInstance() { return new HistogramFactory(maxdim); } } }