EP 1210692 A4 20060208 - GEOMETRIC DESIGN AND MODELING SYSTEM USING CONTROL GEOMETRY
Title (en)
GEOMETRIC DESIGN AND MODELING SYSTEM USING CONTROL GEOMETRY
Title (de)
SYSTEM ZUM GEOMETRISCHEN ENTWURF UND ZUR GEOMETRISCHEN MODELLIERUNG MITTELS STEUERUNGSGEOMETRIE
Title (fr)
SYSTEME DE CONCEPTION ET DE MODELISATION GEOMETRIQUES UTILISANT UNE GEOMETRIE DE CONTROLE
Publication
Application
Priority
US 9916844 W 19990723
Abstract (en)
[origin: WO0108102A1] A method and system for computer aided design (CAD) for designing geometric objects (30, 34). The present invention interpolates and/or blends (B1(u, v), B2(u, v)) between geometric objects (62) sufficiently fast so that real-time deformation of such objects occurs while deformation data is being input. Thus, a user designing obtains immediate feedback to input modifications without separately entering a command for performing deformation. The present invention utilizes novel computational techniques for blending between geometric objects, wherein weighted sums of points on the geometric objects are used in deriving a new blended geometric object. The present invention is particularly useful for designing the shape of surfaces (S1, S2) and various design domains; additionally, providing efficient animation via repeatly modifying surfaces of an animated object.
IPC 1-7
IPC 8 full level
G06T 15/00 (2006.01); G06T 15/70 (2006.01); G06F 17/50 (2006.01); G06T 17/30 (2006.01); G06T 17/40 (2006.01)
CPC (source: EP KR)
G06T 13/20 (2013.01 - KR); G06T 17/30 (2013.01 - EP); G06T 19/20 (2013.01 - KR)
Citation (search report)
- [X] DANIEL J. FILIP: "BLENDING PARAMETRIC SURFACES", ACM TRANSACTIONS ON GRAPHICS, vol. 8, no. 3, 1989, pages 164 - 173, XP002346192
- [A] SANGLIKAR M A ET AL: "Parametric blends for shape modeling", IEEE TENCON '89. FOURTH IEEE REGION 10 INTERNATIONAL CONFERENCE, 22 November 1989 (1989-11-22), pages 377 - 381, XP010087959
- [A] SCHICHTEL M: "G2 BLEND SURFACES AND FILLING OF N-SIDED HOLES", IEEE COMPUTER GRAPHICS AND APPLICATIONS, IEEE INC. NEW YORK, US, vol. 13, no. 5, 1 September 1993 (1993-09-01), pages 68 - 73, XP000511131, ISSN: 0272-1716
- [A] VIDA J ET AL: "A SURVEY OF BLENDING METHODS THAT USE PARAMETRIC SURFACES", COMPUTER AIDED DESIGN, ELSEVIER PUBLISHERS BV., BARKING, GB, vol. 26, no. 5, 1 May 1994 (1994-05-01), pages 341 - 365, XP000442375, ISSN: 0010-4485
- See also references of WO 0108102A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0108102 A1 20010201; AU 5390799 A 20010213; CA 2379459 A1 20010201; CN 1391683 A 20030115; EP 1210692 A1 20020605; EP 1210692 A4 20060208; HU P0700118 A2 20070529; JP 2003505800 A 20030212; KR 20020021800 A 20020322; MX PA02000845 A 20031015
DOCDB simple family (application)
US 9916844 W 19990723; AU 5390799 A 19990723; CA 2379459 A 19990723; CN 99816901 A 19990723; EP 99939655 A 19990723; HU P0700118 A 19990723; JP 2001513115 A 19990723; KR 20020004000 A 20020123; MX PA02000845 A 19990723