Encarnacao, J.L.J.L.EncarnacaoGiloi, W.W.Giloi2022-03-082022-03-081972https://publica.fraunhofer.de/handle/publica/312627The system is modular and is designed for use on a small to medium sized computer. Each module of the programming package is a functional entity, linked to other modules by an overlay technique. In the paper, the construction of the programming system and its modules, the different input modes and the various hidden-line detection procedures are described.encomputer graphics3 d displayhidden line detectionprogramming systemoverlayinput modespradismodular621conference paper