Method for identifying the geographic region of a geographic are

Details Method for identifying the geographic region of a geographic are Method for identifying the geographic region of a geographic are

1998-04-20

1999-11-02

Barlow, John

Data processing: measuring, calibrating, or testing

Measurement system

Orientation or position

340988, 340995, 345133, 345418, 345435, 455422, 455429, 701208, 701212, G01B 700

Patent

active

059787473

ABSTRACT:
Identifying the geographic region of a geographic area which contains a geographic zone. To identify the geographic region which contains a geographic zone, one of the plurality of geographic regions in a geographic area is selected as a selected region. A determination is made as to whether the geographic zone is located within the selected region by determining whether the zone boundary points of the geographic zone are located within the selected region. If a predetermined percentage of the zone boundary points of the geographic zone are located within the selected region, then the geographic zone is located within the selected region and the geographic region is identified. To determine whether a zone boundary point is located within the selected region, a determination is made as to whether a line of predetermined slope drawn through the zone boundary point intersects the region boundary of the selected region. If the line intersects the selected region, then a determination is made as to whether the zone boundary point is located within the selected region.

REFERENCES:
patent: 4675823 (1987-06-01), Noland
patent: 4809201 (1989-02-01), Keklak
patent: 5445524 (1995-08-01), Jones
patent: 5506897 (1996-04-01), Moore et al.
patent: 5533107 (1996-07-01), Irwin et al.
patent: 5550743 (1996-08-01), Kyrtsos
patent: 5669061 (1997-09-01), Schipper
patent: 5684940 (1997-11-01), Freeman et al.

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