**4. Advanced viewing techniques**

This section deals with some examples of advanced viewing of results that we have found useful during our work. As you have noticed, up to this point we have represented 3D results only in 2D graphs. This is because usually these 2D representations are clearer and easier to interpret. But for overviewing or demonstrational purposes we might need to show whole situation in 3D. For doing this we shall use multiple sections of a computational domain (slice or surf) and iso-surfaces.
