Active region determination for line generation in regionalized rasterizer displays
US6753861B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2001 |
| Grant date | Jun 22, 2004 |
| Priority date | — |
| Expiry date | Aug 9, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T11/203
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In one embodiment, selecting a screen region on a screen of a monitor of a computer graphics display system to activate in rendering a straight line segment. Steps of aligning a rectangular grid to screen region boundaries, wherein the screen includes a screen space divided into at least one screen region, locating a first and second endpoints of the straight line segment on the screen space, defining a rectangular bounding box in the screen space having vertices at the first and second endpoints, identifying each screen region that at least partially overlaps the bounding box, and selecting each identified screen region through which the straight line segment passes to activate for rendering the straight line segment on the screen are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.