Method for identifying the geographic region of a geographic area which contains a geographic zone
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United States of America Patent
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-
Nov 2, 1999
Issued Date -
N/A
app pub date -
Apr 20, 1998
filing date -
Apr 1, 1997
priority date (Note) -
In Force
status (Latency Note)
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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.
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