论文信息 - Procedural Representation of Three-Dimensional Objects

Procedural Representation of Three-Dimensional Objects

A system of PL/I procedures has been written that permits geometric objects to be described hierarchically. The objects are themselves represented as PL/I procedures, allowing very general use of variables. By effectively intercepting subprogram calls, the system provides a means of modifying the semantics associated with any object without modifying the object's procedural description.

David D. Grossman | D. Grossman

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