1 files changed, 91 insertions, 0 deletions
diff --git a/src/de/lmu/ifi/dbs/elki/visualization/visualizers/optics/AbstractOPTICSVisualization.java b/src/de/lmu/ifi/dbs/elki/visualization/visualizers/optics/AbstractOPTICSVisualization.java
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+++ b/src/de/lmu/ifi/dbs/elki/visualization/visualizers/optics/AbstractOPTICSVisualization.java
@@ -0,0 +1,91 @@
+package de.lmu.ifi.dbs.elki.visualization.visualizers.optics;
+
+/*
+ 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 java.util.List;
+
+import org.apache.batik.util.SVGConstants;
+
+import de.lmu.ifi.dbs.elki.distance.distancevalue.Distance;
+import de.lmu.ifi.dbs.elki.result.optics.ClusterOrderEntry;
+import de.lmu.ifi.dbs.elki.visualization.VisualizationTask;
+import de.lmu.ifi.dbs.elki.visualization.projector.OPTICSProjector;
+import de.lmu.ifi.dbs.elki.visualization.style.StyleLibrary;
+import de.lmu.ifi.dbs.elki.visualization.svg.SVGUtil;
+import de.lmu.ifi.dbs.elki.visualization.visualizers.AbstractVisualization;
+
+/**
+ * Abstract base class for OPTICS visualizer
+ * 
+ * @author Erich Schubert
+ *
+ * @param <D>
+ */
+public abstract class AbstractOPTICSVisualization<D extends Distance<D>> extends AbstractVisualization {
+  /**
+   * The plot
+   */
+  final protected OPTICSProjector<D> optics;
+  
+  /**
+   * Width of plot (in display units)
+   */
+  protected double plotwidth;
+  
+  /**
+   * Height of plot (in display units)
+   */
+  protected double plotheight;
+
+  /**
+   * Constructor.
+   *
+   * @param task Visualization task.
+   */
+  public AbstractOPTICSVisualization(VisualizationTask task) {
+    super(task);
+    this.optics = task.getResult();
+  }
+
+  /**
+   * Produce a new layer element.
+   */
+  protected void makeLayerElement() {
+    plotwidth = StyleLibrary.SCALE;
+    plotheight = StyleLibrary.SCALE / optics.getOPTICSPlot(context).getRatio();
+    final double margin = context.getStyleLibrary().getSize(StyleLibrary.MARGIN);
+    layer = SVGUtil.svgElement(svgp.getDocument(), SVGConstants.SVG_G_TAG);
+    final String transform = SVGUtil.makeMarginTransform(task.getWidth(), task.getHeight(), plotwidth, plotheight, margin / 2);
+    SVGUtil.setAtt(layer, SVGConstants.SVG_TRANSFORM_ATTRIBUTE, transform);
+  }
+  
+  /**
+   * Access the raw cluster order
+   * 
+   * @return Cluster order
+   */
+  protected List<ClusterOrderEntry<D>> getClusterOrder() {
+    return optics.getResult().getClusterOrder();
+  }
+}
+\ No newline at end of file