12 connect reader.Out v2d.In
13 connect slider.Out v2d.Slice
14 connect slider.Widget layout.Widget1
15 connect v2d.Widget layout.Widget2
16 connect slider.BoxChange v2d.BoxExecute
17 new IsoSurfaceWidget surface
18 connect reader.Out surface.In
19 connect surface.Out v3d.In1
20 connect surface.Widget layout.Widget3
21 connect v3d.Widget layout.Widget4
22 connect surface.BoxChange v3d.BoxExecute