Label positioning technique to reduce crawling during zoom activities
US8237745B1 · kind B1 · utility
36Cited by
13References
25Claims
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Key dates
| Filing date | Sep 26, 2011 |
| Grant date | Aug 7, 2012 |
| Priority date | — |
| Expiry date | Sep 26, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/3673
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A graphics or image rendering system, such as a map image rendering system, receives image data from an image database in the form of vector data that defines various features of the map, such as roads, boundaries, etc., in addition to text strings or symbols to be displayed with the features to provide, for example, labels for the features. The label positioning technique generally divides the displayed road feature into a number of road segments and then labels each road segment in a sequence based on an ordered set of labels and a position of each road segment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.