Principles of interactive computer graphics (2nd ed.)
Principles of interactive computer graphics (2nd ed.)
A Fortran-Compiled List-Processing Language
Journal of the ACM (JACM)
Multivariable Curve Interpolation
Journal of the ACM (JACM)
The synthesis of solids bounded by many faces
Communications of the ACM
Mathematical model for mechanical part description
Communications of the ACM
A system for computer generated movies
ACM '72 Proceedings of the ACM annual conference - Volume 1
Computer description of curved objects
IJCAI'73 Proceedings of the 3rd international joint conference on Artificial intelligence
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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.