1 files changed, 90 insertions, 0 deletions
diff --git a/src/de/lmu/ifi/dbs/elki/visualization/style/marker/CircleMarkers.java b/src/de/lmu/ifi/dbs/elki/visualization/style/marker/CircleMarkers.java
new file mode 100644
index 00000000..b847d571
--- /dev/null
+++ b/src/de/lmu/ifi/dbs/elki/visualization/style/marker/CircleMarkers.java
@@ -0,0 +1,90 @@
+package de.lmu.ifi.dbs.elki.visualization.style.marker;
+
+/*
+ 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 org.apache.batik.util.SVGConstants;
+import org.w3c.dom.Element;
+
+import de.lmu.ifi.dbs.elki.visualization.colors.ColorLibrary;
+import de.lmu.ifi.dbs.elki.visualization.style.StyleLibrary;
+import de.lmu.ifi.dbs.elki.visualization.svg.SVGPlot;
+import de.lmu.ifi.dbs.elki.visualization.svg.SVGUtil;
+
+/**
+ * Simple marker library that just draws colored circles at the given
+ * coordinates.
+ * 
+ * @author Erich Schubert
+ * 
+ * @apiviz.composedOf ColorLibrary
+ */
+public class CircleMarkers implements MarkerLibrary {
+  /**
+   * Color library
+   */
+  private ColorLibrary colors;
+
+  /**
+   * Color of "uncolored" dots
+   */
+  private String dotcolor = "black";
+
+  /**
+   * Color of "greyed out" dots
+   */
+  private String greycolor = "gray";
+
+  /**
+   * Constructor
+   * 
+   * @param style Style library to use
+   */
+  public CircleMarkers(StyleLibrary style) {
+    super();
+    this.colors = style.getColorSet(StyleLibrary.MARKERPLOT);
+    this.dotcolor = style.getColor(StyleLibrary.MARKERPLOT);
+    this.greycolor = style.getColor(StyleLibrary.PLOTGREY);
+  }
+
+  /**
+   * Use a given marker on the document.
+   */
+  @Override
+  public Element useMarker(SVGPlot plot, Element parent, double x, double y, int stylenr, double size) {
+    Element marker = plot.svgCircle(x, y, size / 2);
+    final String col;
+    if(stylenr == -1) {
+      col = dotcolor;
+    }
+    else if(stylenr == -2) {
+      col = greycolor;
+    }
+    else {
+      col = colors.getColor(stylenr);
+    }
+    SVGUtil.setStyle(marker, SVGConstants.CSS_FILL_PROPERTY + ":" + col);
+    parent.appendChild(marker);
+    return marker;
+  }
+}
+\ No newline at end of file