System and method for direct modeling of fillets and draft angles
US5731816A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1995 |
| Grant date | Mar 24, 1998 |
| Priority date | — |
| Expiry date | Oct 30, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T17/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for direct modeling of fillets and draft angles include forming a fillet region having a first transition from a surface feature to the fillet region and a second transition from a base surface to the fillet region while maintaining a predetermined continuity at the first and second transitions. The system and method select (75) a general form of a fillet profile with a single basis function to describe the fillet, apply (76) the fillet profile to either side of a constant central region on the surface feature to form a surface feature profile, and sweep (77) the surface feature profile within the feature boundary to form the fillet region. The present invention allows such fillet regions to be subsequently modified while maintaining the predetermined continuity at the first and second transitions by applying a reparametrization (78) to the basis function to modify the fillet region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.