Import Upstream version 0.7.0

1 files changed, 102 insertions, 0 deletions

diff --git a/elki/src/main/java/de/lmu/ifi/dbs/elki/data/synthetic/bymodel/GeneratorStatic.java b/elki/src/main/java/de/lmu/ifi/dbs/elki/data/synthetic/bymodel/GeneratorStatic.java
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+++ b/elki/src/main/java/de/lmu/ifi/dbs/elki/data/synthetic/bymodel/GeneratorStatic.java
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+package de.lmu.ifi.dbs.elki.data.synthetic.bymodel;
+
+/*
+ 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.Collections;
+import java.util.List;
+
+import de.lmu.ifi.dbs.elki.data.model.ClusterModel;
+import de.lmu.ifi.dbs.elki.data.model.Model;
+import de.lmu.ifi.dbs.elki.math.linearalgebra.Vector;
+
+/**
+ * Class for static clusters, that is an implementation of GeneratorInterface
+ * that will return only a given set of points.
+ * 
+ * @author Erich Schubert
+ */
+public class GeneratorStatic implements GeneratorInterface {
+  /**
+   * Cluster name
+   */
+  public String name;
+
+  /**
+   * Cluster points
+   */
+  public List<Vector> points;
+
+  /**
+   * Construct generator using given name and points
+   * 
+   * @param name Cluster name
+   * @param points Cluster points
+   */
+  public GeneratorStatic(String name, List<Vector> points) {
+    super();
+    this.name = name;
+    this.points = points;
+  }
+
+  /**
+   * "Generate" new cluster points. Static generators always return their
+   * predefined set of points.
+   * 
+   * @param count parameter is ignored.
+   */
+  @Override
+  public List<Vector> generate(int count) {
+    return Collections.unmodifiableList(points);
+  }
+
+  @Override
+  public double getDensity(Vector p) {
+    for(Vector my : points) {
+      if(my.equals(p)) {
+        return Double.POSITIVE_INFINITY;
+      }
+    }
+    return 0.0;
+  }
+
+  @Override
+  public int getDim() {
+    return points.get(0).getDimensionality();
+  }
+
+  @Override
+  public String getName() {
+    return name;
+  }
+
+  @Override
+  public int getSize() {
+    return points.size();
+  }
+
+  @Override
+  public Model makeModel() {
+    return ClusterModel.CLUSTER;
+  }
+}
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