+double vvSlicer::GetOverlayColorWindow()
+{ //out << __func__ << endl;
+ if(mOverlayMapper)
+ return mOverlayMapper->GetWindow();
+ else
+ return 0.;
+}
+//----------------------------------------------------------------------------
+
+//----------------------------------------------------------------------------
+double vvSlicer::GetOverlayColorLevel()
+{ //out << __func__ << endl;
+ if(mOverlayMapper)
+ return mOverlayMapper->GetLevel();
+ else
+ return 0.;
+}
+//----------------------------------------------------------------------------
+
+//----------------------------------------------------------------------------
+void vvSlicer::SetOverlayColorWindow(double window)
+{ //out << __func__ << endl;
+ if(mOverlayMapper)
+ mOverlayMapper->SetWindow(window);
+}
+//----------------------------------------------------------------------------
+
+//----------------------------------------------------------------------------
+void vvSlicer::SetOverlayColorLevel(double level)
+{ //out << __func__ << endl;
+ if(mOverlayMapper)
+ mOverlayMapper->SetLevel(level);
+}
+//----------------------------------------------------------------------------
+
+//----------------------------------------------------------------------------
+// Returns the min an the max value in a 20%x20% region around the mouse pointer
+void vvSlicer::GetExtremasAroundMousePointer(double & min, double & max, vtkImageData *image, vtkTransform *transform)
+{ //out << __func__ << endl;