Intelligent automatic trapping of page objects
US6594030B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 1999 |
| Grant date | Jul 15, 2003 |
| Priority date | — |
| Expiry date | Aug 27, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F40/103
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a desktop publishing application program, functionality is provided for automatic trapping of all page objects in a publication. Each page object is trapped as completely as possible, meaning that each page object is subdivided into atomic geometric or color page object components. Each page object component is trapped against all of the page object components of the same page object. These page object components are then trapped against all objects beneath them on a page in the publication. In some cases, page object components are also trapped against page objects above them on the page. Page objects beneath the page object components are decomposed into page object components as well. Page object components may be trapped according to correct adjacency trapping principles as well as general-purpose trapping principles. Text characters contained within page objects in the publication are trapped as well. When a trap is calculated for a given page object, only the necessary portions of the trap are actually rendered onto color plates. Accordingly, minimal traps may be generated for any supported page object in a native desktop publishing application program prior to converting …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.