Abstract: A machine-readable definition of a scene including three dimensional objects is represented. A schematic representation of the scene displays an object in which elements of the object are defined by nodes and relationships between these nodes are represented by links. Several unique relationship types are used to define specific functions applying to a node or between nodes. Selection data is received in response to user input that selects one of the relationship types. Appearance of the displayed links is modified so as to identify occurrences of the selected type to the user. Furthermore, a link may be added to display a relationship type defining a specific function for two or more nodes.

Abstract: An apparatus for delivering a printing plate to an external drum platesetter includes: a plate traversing table for displacing a printing plate into a staging position; and a plate angling table, nested within the plate traversing table, for rotating the printing plate between the staging position and a loading position. The plate traversing table includes: a first shaft; a second driven shaft including a plurality of nip rollers; a plurality of pulleys mounted to the first and second shafts; a plurality of rotatable belts, extending between corresponding sets of the pulleys on the first and second shafts; and a drive system for rotating the driven shaft.