Index: applications/viewer/jmapviewer/src/org/openstreetmap/gui/jmapviewer/JMapViewer.java
===================================================================
--- applications/viewer/jmapviewer/src/org/openstreetmap/gui/jmapviewer/JMapViewer.java	(revision 26529)
+++ applications/viewer/jmapviewer/src/org/openstreetmap/gui/jmapviewer/JMapViewer.java	(revision 26648)
@@ -671,4 +671,9 @@
     }
 
+    public void removeAllMapMarkers() {
+        mapMarkerList.clear();
+        repaint();
+    }
+
     public void addMapRectangle(MapRectangle rectangle) {
         mapRectangleList.add(rectangle);
@@ -678,4 +683,9 @@
     public void removeMapRectangle(MapRectangle rectangle) {
         mapRectangleList.remove(rectangle);
+        repaint();
+    }
+
+    public void removeAllMapRectangles() {
+        mapRectangleList.clear();
         repaint();
     }
Index: applications/viewer/jmapviewer/src/org/openstreetmap/gui/jmapviewer/MapRectangleImpl.java
===================================================================
--- applications/viewer/jmapviewer/src/org/openstreetmap/gui/jmapviewer/MapRectangleImpl.java	(revision 26648)
+++ applications/viewer/jmapviewer/src/org/openstreetmap/gui/jmapviewer/MapRectangleImpl.java	(revision 26648)
@@ -0,0 +1,60 @@
+// License: GPL. For details, see LICENSE file.
+package org.openstreetmap.gui.jmapviewer;
+
+import java.awt.Color;
+import java.awt.Graphics;
+import java.awt.Point;
+
+import org.openstreetmap.gui.jmapviewer.interfaces.MapRectangle;
+import org.openstreetmap.josm.data.Bounds;
+
+/**
+ * @author Vincent
+ *
+ */
+public class MapRectangleImpl implements MapRectangle {
+
+    private Coordinate topLeft;
+    private Coordinate bottomRight;
+    Color color;
+
+    public MapRectangleImpl(Bounds bounds) {
+        this(bounds, Color.BLUE);
+    }
+
+    public MapRectangleImpl(Bounds bounds, Color color) {
+        this.topLeft = new Coordinate(bounds.getMax().lat(), bounds.getMin().lon());
+        this.bottomRight = new Coordinate(bounds.getMin().lat(), bounds.getMax().lon());
+        this.color = color;
+    }
+
+    /* (non-Javadoc)
+     * @see org.openstreetmap.gui.jmapviewer.interfaces.MapRectangle#getTopLeft()
+     */
+    @Override
+    public Coordinate getTopLeft() {
+        return topLeft;
+    }
+
+    /* (non-Javadoc)
+     * @see org.openstreetmap.gui.jmapviewer.interfaces.MapRectangle#getBottomRight()
+     */
+    @Override
+    public Coordinate getBottomRight() {
+        return bottomRight;
+    }
+
+    /* (non-Javadoc)
+     * @see org.openstreetmap.gui.jmapviewer.interfaces.MapRectangle#paint(java.awt.Graphics, java.awt.Point, java.awt.Point)
+     */
+    @Override
+    public void paint(Graphics g, Point topLeft, Point bottomRight) {
+        g.setColor(color);
+        g.drawRect(topLeft.x, topLeft.y, bottomRight.x - topLeft.x, bottomRight.y - topLeft.y);
+    }
+
+    @Override
+    public String toString() {
+        return "MapRectangle from " + topLeft + " to " + bottomRight;
+    }
+}