1 files changed, 3 insertions, 2 deletions
diff --git a/src/de/lmu/ifi/dbs/elki/visualization/visualizers/optics/OPTICSPlotVisualizer.java b/src/de/lmu/ifi/dbs/elki/visualization/visualizers/optics/OPTICSPlotVisualizer.java
index da287252..d93c98cb 100644
--- a/src/de/lmu/ifi/dbs/elki/visualization/visualizers/optics/OPTICSPlotVisualizer.java
+++ b/src/de/lmu/ifi/dbs/elki/visualization/visualizers/optics/OPTICSPlotVisualizer.java
@@ -23,6 +23,8 @@ package de.lmu.ifi.dbs.elki.visualization.visualizers.optics;
  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+import java.util.Collection;
+
 import org.apache.batik.util.SVGConstants;
 import org.w3c.dom.Element;
 
@@ -32,7 +34,6 @@ import de.lmu.ifi.dbs.elki.logging.LoggingUtil;
 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.iterator.IterableIterator;
 import de.lmu.ifi.dbs.elki.visualization.VisualizationTask;
 import de.lmu.ifi.dbs.elki.visualization.css.CSSClassManager.CSSNamingConflict;
 import de.lmu.ifi.dbs.elki.visualization.opticsplot.OPTICSPlot;
@@ -110,7 +111,7 @@ public class OPTICSPlotVisualizer<D extends Distance<D>> extends AbstractOPTICSV
 
     @Override
     public void processNewResult(HierarchicalResult baseResult, Result result) {
-      IterableIterator<OPTICSProjector<?>> ops = ResultUtil.filteredResults(result, OPTICSProjector.class);
+      Collection<OPTICSProjector<?>> ops = ResultUtil.filterResults(result, OPTICSProjector.class);
       for(OPTICSProjector<?> p : ops) {
         // Add plots, attach visualizer
         final VisualizationTask task = new VisualizationTask(NAME, p, null, this);