Curved surface importing device and method
US8339401B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 29, 2010 |
| Grant date | Dec 25, 2012 |
| Priority date | — |
| Expiry date | Jun 1, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T17/20
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A curved surface importing device and method imports character strings of graphic parameters and graphic attributes of graphs from an initial graphic exchange specification (IGES) document, and analyzes the character strings of each of the graphs to generate a graphic model. The curved surface importing device converts the graphic model to a plurality of free-form curves and a free-form curved surface, connects each of the free-form curves to generate a closed boundary curve, and cuts out a contour surface from the free-form curved surface according to the closed boundary curve. The curved surface importing device further meshes the contour surface using a plurality of triangles, and determines an approximate poly-line of a boundary of the contour surface. The plurality of triangles and the approximate poly-line of a boundary of the contour surface are displayed on a display screen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.