Method for modifying a geometric object and computer aided design system
US5615319A · kind A · utility
17Cited by
1References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 11, 1995 |
| Grant date | Mar 25, 1997 |
| Priority date | — |
| Expiry date | May 11, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2219/2021
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a computer aided design system, a geometric object is defined as a function, preferably a B-Spline, of a piecewise polynomial function. In order to make a local modification of said geometric object, a point of origin (P) is picked. A second point (P') is defined as a target point through which the modified function should pass. The move from the point of origin (P) to the target point (P') is transformed into a move, preferably a parallel shift, of the control points of the associated control polygons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.