Method for constructing three-dimensional polyhedron model

Details Method for constructing three-dimensional polyhedron model Method for constructing three-dimensional polyhedron model

1986-03-28

1988-10-04

Hackcom, Gary V.

Boots, shoes, and leggings

364521, 340729, G06F 1562

Patent

active

047759461

ABSTRACT:
In order to achieve an interpolation display of a display object existing between two adjacent planes according to the triangulation when digital data on the two adjacent planes is given, the data items on the two planes are grouped into a plurality of connected components, respectively, and several connected components on the first plane are projected onto the connected components on the second plane. Thereafter, a sequence of points enclosing each one of the projected components are selected, and the selected point sequence is corresponded to a sequence of boundary points which enclose one of the connected components which contains the subcomponent whose projected image onto the connected components on the second plane is equal to the projected component. Then, by using every corresponding pairs of the sequences, the triangular faces are generated.

REFERENCES:
patent: 4549275 (1985-10-01), Sukonick
patent: 4608653 (1986-08-01), Setoguchi
patent: 4685070 (1987-08-01), Flinchbaugh
patent: 4694407 (1987-09-01), Ogdon
patent: 4697178 (1987-09-01), Heckel
Rosenfeld et al., Digital Picture Processing pp. 1-8, and 333-339, 1976.
Christiansen et al., "Conversion of Complex Contour Line Definitions into Blygonal Element Mosaics" pp. 187-192, 1977.
Ganapathy et al, "A New General Triangulation Method for Planar Contours," pp. 69-75, 1982.

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