Method for automatically generating a chenille filled embroidery stitch pattern
US5541847A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1995 |
| Grant date | Jul 30, 1996 |
| Priority date | — |
| Expiry date | Sep 11, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/45196
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An improved method for automatically generating chenille filled embroidery stitch patterns and/or chain stitching in a computer aided design system in which the shape to be filled is a complex polygon. A spine of a medial axis of the Voronoi Diagram of the polygon is determined, modified concentric polygons are then constructed by clipping the edges of the concentric polygons that are within a clip width of the spine, the modified concentric polygons are then sorted and spirals are placed along the modified polygons with stitches being placed along the spirals, with the occurrence of any bald spots in the shape being filled being minimized. For chain stitching, rather than placing spirals, the chain stitches are placed on the perimeter of the concentric polygons.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.