Automatic generating device for 3-d structure shape,...

Details Automatic generating device for 3-d structure shape,... Automatic generating device for 3-d structure shape,...

2006-08-29

2006-08-29

Chauhan, Ulka J. (Department: 2671)

Computer graphics processing and selective visual display system

Computer graphics processing

Three-dimension

C345S419000, C345S421000, C345S441000, C345S619000

Reexamination Certificate

active

07098909

ABSTRACT:
An automatic three-dimensional structure shape generation apparatus for automatically generating the shape of a three-dimensional structure from a plurality of points having three-dimensional coordinates containing height information includes means for constituting a point group by collecting points such that three-dimensional distances between the points are within a predetermined threshold or two-dimensional distances and height differences between the points are within predetermined thresholds, means for detecting a polygon that includes the points of the point group at a minimum area from at least one of a plurality of predetermined polygons, and means for generating an outer shape or a rooftop shape of the three-dimensional structure from the polygon having the minimum area.

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patent: 5303337 (1994-04-01), Ishida
patent: 5988862 (1999-11-01), Kacyra et al.
patent: 6619406 (2003-09-01), Kacyra et al.
patent: 7-93540 (1995-04-01), None
patent: 8-304042 (1996-11-01), None
patent: 10-283461 (1998-10-01), None
patent: 2001-143057 (2001-05-01), None

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