System and method for coding and retrieval of a CAD drawing from a database
US7653245B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2003 |
| Grant date | Jan 26, 2010 |
| Priority date | — |
| Expiry date | Aug 23, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/56
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of coding a view in a CAD drawing comprises: identifying a feature of the view; extracting properties of the feature from the CAD drawing, the properties including vector properties associated with a graphic entity or group of entities which make up the feature; generating code bits representative of the extracted properties; adding the code bits to a view code for the view; and storing the view code.A CAD drawing is selected for retrieval from a database of drawings by producing a CAD source drawing having a source view, coding the source view to produce a source code as described above, comparing the source code with stored view codes, calculating a similarity index for each stored view code and selecting the drawing for retrieval from the database on the basis of the similarity index.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.