CAD/CAM device with hierarchical data structure

Details CAD/CAM device with hierarchical data structure CAD/CAM device with hierarchical data structure

1992-04-07

1993-12-21

Smith, Jerry

Boots, shoes, and leggings

364188, 395120, G06F 1546

Patent

active

052726428

ABSTRACT:
The CAD/CAM device includes a layer table 9 tabulating the layers each including the attributes 18 for the layer and the other-layers referencing information 19 for other layers. By establishing correspondence from the figure elements, the three-dimensional curves, and the three-dimensional forms to respective layer data, the figure elements, the three-dimensional curves and the three-dimensional forms are maintained hierarchically via the layer table 9. Further, the respective layer data are given hierarchical name 17. By designating a work layer at the root of a hierarchical tree data structure, all the information necessary for the generation of the NC data can be retrieved.

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patent: 5115400 (1992-05-01), Watanabe et al.
patent: 5177689 (1993-01-01), Kinasi et al.
Dipl. Ing. T. T. Pham et al., "Automatisierte Attribut-Programmierung fur die Laser-Blechfertigung", vol. 86, No. 3, pp. 117-121, Mar. 1991.
H. Suzuki et al., "A Product Modeling System For Constructing Intellegent Cad And Cam Systems", vol. 4, No. 3-4, pp. 483-489, 1988.
J. Grum et al., "Design of the Database for Cad Based on Group Technology", vol. 4, No. 1/2, pp. 49-62, 1988.
Spur. Krause: "CAD-Technik", Carl Hauser, Muenchen and Wien, 1984, pp. 119-124.
J. F. Graetz: "Konzeption eines komplexen 3D-Modells mit beliebiger Flaechenstruktur:", ZWF 78 (1983), 12, pp. 564-571.

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