# File vtk/tk/vtkTkImageViewerWidget.rb, line 246 def ResetTkImageViewer # Reset: Set window level to show all values viewer = @ImageViewer input = viewer.GetInput if input == nil return nil end # Get the extent in viewer z = viewer.GetZSlice input.SetUpdateExtent(-99999,99999,-99999,99999,z,z) input.Update low,high = input.GetScalarRange viewer.SetColorWindow(high - low) viewer.SetColorLevel((high + low) * 0.5) self.Render end