VisLink: Revealing Relationships Amongst Visualizations 
Barbara Fritsch Wolfgang Knecht 



The edges are represented by the usage of splines. Color of edges illustrates start and end point. Start point is red and the end point is described by green. The ordering of splines takes not the zvalue into account instead of this the two neighboring planes presents their relations. In the next step only the new points are used for calculating again more points. After several steps a smooth curve is created like in the next figure illustrated. The figure above is copied from following source: http://www.idav.ucdavis.edu/education/CAGDNotes/ChaikinsAlgorithm/ChaikinsAlgorithm.html 