diff --git a/EgtGraphics.rc b/EgtGraphics.rc
index d5faa82..e60fd05 100644
Binary files a/EgtGraphics.rc and b/EgtGraphics.rc differ
diff --git a/Scene.h b/Scene.h
index 8613587..b022d04 100644
--- a/Scene.h
+++ b/Scene.h
@@ -93,6 +93,7 @@ class Scene : public IEGrScene
       virtual bool PanCamera( const Point3d& ptWinOld, const Point3d& ptWinNew) ;
       virtual bool RotateCamera( const Point3d& ptWinOld, const Point3d& ptWinNew) ;
       virtual bool ZoomAll( void) ;
+      virtual bool ZoomRadius( double dRadius) ;
       virtual bool ZoomChange( double dCoeff) ;
       virtual bool ZoomOnPoint( const Point3d& ptWin, double dCoeff) ;
       virtual bool ZoomWin( const Point3d& ptWin1, const Point3d& ptWin2) ;
diff --git a/SceneCamera.cpp b/SceneCamera.cpp
index ee1453f..ad2f5d7 100644
--- a/SceneCamera.cpp
+++ b/SceneCamera.cpp
@@ -280,6 +280,14 @@ Scene::ZoomAll( void)
    return true ;
 }
 
+//----------------------------------------------------------------------------
+bool
+Scene::ZoomRadius( double dRadius)
+{
+  // adatto le dimensioni a quelle della vista
+   return AdjustDimView( dRadius, dRadius) ;
+}
+
 //----------------------------------------------------------------------------
 bool
 Scene::ZoomChange( double dCoeff)