Method of labelling a highly curved path on a map rendered on a wireless communications device
US9099056B2 · kind B2 · utility
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2References
30Claims
0Family size
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Key dates
| Filing date | Mar 14, 2007 |
| Grant date | Aug 4, 2015 |
| Priority date | — |
| Expiry date | Apr 2, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/145
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In displaying a map on a wireless communications device, a method is provided that resolves labelling of sharp curves. The method entails a determination of whether a curvature of a map element associated with the map feature exceeds a predetermined threshold (e.g. whether a rate of change in slope of a path or the change in angular orientation of each successive character in the label exceeds a threshold that is a function of zoom level. If the curvature exceeds the threshold, the label is rendered on the map in a new map location that avoids the map location where the curvature exceeds the threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.