Three-dimensional graphical programming in CAEL

In the visual programming community, many interesting graphical representations have been reported. Most have a 2D or 2.5D appearance on screen to reflect the inherent multi-dimensionality of the programming constructs being represented. By going to a three-dimensional representation, this reflection can go a step further. With ever increasing 3D graphics rendering capabilities, it moreover becomes feasible to extend the dimensionality of the program (and data structure) depiction. The authors follow this approach by realizing 3D graphical programming techniques within CAEL, our interactive computer animation environment language. The paper elucidates the underlying concepts, architecture and 3D representations utilize in CAEL