1 files changed, 2 insertions, 2 deletions
diff --git a/src/de/lmu/ifi/dbs/elki/visualization/visualizers/AbstractVisFactory.java b/src/de/lmu/ifi/dbs/elki/visualization/visualizers/AbstractVisFactory.java
index 40ae5cdf..565cf784 100644
--- a/src/de/lmu/ifi/dbs/elki/visualization/visualizers/AbstractVisFactory.java
+++ b/src/de/lmu/ifi/dbs/elki/visualization/visualizers/AbstractVisFactory.java
@@ -32,6 +32,7 @@ import de.lmu.ifi.dbs.elki.visualization.visualizers.thumbs.ThumbnailVisualizati
  * @author Remigius Wojdanowski
  * 
  * @apiviz.uses ThumbnailVisualization oneway - - «create»
+ * @apiviz.excludeSubtypes
  */
 public abstract class AbstractVisFactory implements VisFactory {
   /**
@@ -49,8 +50,7 @@ public abstract class AbstractVisFactory implements VisFactory {
   @Override
   public Visualization makeVisualizationOrThumbnail(VisualizationTask task) {
     // Is this a thumbnail request?
-    Boolean isthumb = task.get(VisualizationTask.THUMBNAIL, Boolean.class);
-    if (isthumb != null && isthumb.booleanValue() && allowThumbnails(task)) {
+    if (task.thumbnail && allowThumbnails(task)) {
       return new ThumbnailVisualization(this, task, thumbmask);
     }
     return makeVisualization(task);