Method and system for indexing three-dimensional solid model data based upon modification history
US5844563A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 1995 |
| Grant date | Dec 1, 1998 |
| Priority date | — |
| Expiry date | Sep 13, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T17/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The current invention discloses the method and the system for designing a three-dimensional model object with an automatic updating feature which correctly and efficiently updates the model object in response to a modification command. In order to efficiently access a part of the object data associated with the modification command, a group of parts in the model object is referred by an index. Such groups include a face set, an edge sequence and a vertex, and these elements are associated to a given modification command by the index. The association between the modification command and the elements via the index provides an efficient yet flexible access to the relevant object data and substantially eliminates the unintended effects during the updating process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.