The topic of visualisation is today apparent in many areas of science. Visualisation in general uses graphical representations in order to amplify human cognition. It is thus more formal than artistic visual representations. These may leave it entirely to the artist and the beholder to infer the 'correct' interpretation from a graphical composition. At the same time visualisation is less focused on technical aspects than for example computer graphics that primarily deals with algorithms and te- nologies to realise graphics on technical devices. A central aspect of visualisation as it is seen...