Shading for variable opacity stroke rendering
US10282867B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2016 |
| Grant date | May 7, 2019 |
| Priority date | — |
| Expiry date | Apr 3, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/347
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch input is received on the touchscreen. The touch input comprises a stroke and is associated with variable opacity. The stroke is converted to a plurality of segments. The plurality of segments comprises a plurality of arc segments, line segments, or a combination. A plurality of stamps is generated corresponding to the plurality segments. Shading is applied to the stroke, where applying shading comprises varying at least one of a weight or an offset of at least one color associated with at least one pixel of at least one stamp of the plurality of stamps. The plurality of stamps is rendered on the touchscreen of the device to represent the stroke.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.