Editing three-dimensional vertex data with undo facility

Details Editing three-dimensional vertex data with undo facility Editing three-dimensional vertex data with undo facility

1995-09-29

1998-12-15

Fetting, Anton

Computer graphics processing and selective visual display system

Computer graphics processing

Three-dimension

G06T 1740

Patent

active

058502238

ABSTRACT:
In an interactive editing apparatus, a three-dimensional object to be edited is a set of polygonal surfaces which are arranged in a three-dimensional space and have the same number of sides. These polygonal surfaces are arranged on the three-dimensional space to display on a perspective view, the sides of the polygonal surfaces are linearly enveloped to express a polygonal three-dimensional object. When a user edits any one of vertex positions, data regarding the edited vertex and associated other vertex positions are updated. Further in the interactive editing apparatus, data regarding vertexes and faces of the object are managed using data cells, and shape data before the last editing are stored in the data cells together with present shape data, whereby an undo function is realized.

REFERENCES:
patent: 5101436 (1992-03-01), DeAguiar et al.
patent: 5504845 (1996-04-01), Vecchione
patent: 5513309 (1996-04-01), Meier et al.
patent: 5561747 (1996-10-01), Crocker et al.
patent: 5561748 (1996-10-01), Niu et al.
patent: 5561749 (1996-10-01), Schroeder
patent: 5613049 (1997-03-01), Brechner et al.
patent: 5623583 (1997-04-01), Nishino

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