viewing widget export function

Author: wahln

matRad/gui/widgets/matRad_ViewingWidget.m

@@ -1360,6 +1360,11 @@ function updateDisplaySelection(this,visSelection)
                 end
             end
         end
+
+        function exportSlice(this,filename,varargin)
+            exportgraphics(this.handles.figure1,filename,varargin{:});
+        end
+
     end