Method of displaying a map
US4807157A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 1987 |
| Grant date | Feb 21, 1989 |
| Priority date | — |
| Expiry date | Nov 2, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G1/16
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for displaying a map, including steps of evaluating a start dot and an end dot of each segment defining a boundary of a predetermined area on the map, storing sequentially each of the evaluated data so that each of the segments has a lateral deflection with respect to the predetermined area, determining the lateral deflection of the predetermined area according to the evaluated data for the start and end dots of the segment when the predetermined area is painted on a display unit, calculating a start point for painting positioned inward of the segment and each of the evaluated data, and painting the predetermined area with a predetermined color from the start point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.