Determining elevation values in a geocoding system
First Claim
1. A method of determining elevation values using a geocoding system having a segment data set, comprising the steps of:
- inputting a location into said geocoding system;
determining a closest segment in said data set to said location;
accessing a data set of elevation data for said closest segment;
determining segment elevation values for each of two segment elevation points associated with said closest segment;
determining an elevation value of said location based on interpolation of said location in relation to each said two segment elevation points and said segment elevation values; and
,outputting said elevation value for said input location.
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Accused Products
Abstract
A system and method of determining elevation values includes inputting a location into a geocoding system having a segment data set and determining the closest segment in the data set to the location. A data set of elevation data the closest segment is accessed and a determination is made of an elevation value for each of two elevation points associated with the closest segment. The elevation value of the location is determined based on interpolation of the location in relation to each the two elevation points and the elevation value of each of the two elevation points. The determined elevation value for said input location is output. The offset distance of the location from the closest segment may be determined and a slope applied to the offset distance to determine an elevation gain or loss for the location due to the offset distance of the location from the closest segment.
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Citations
13 Claims
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1. A method of determining elevation values using a geocoding system having a segment data set, comprising the steps of:
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inputting a location into said geocoding system; determining a closest segment in said data set to said location; accessing a data set of elevation data for said closest segment; determining segment elevation values for each of two segment elevation points associated with said closest segment; determining an elevation value of said location based on interpolation of said location in relation to each said two segment elevation points and said segment elevation values; and
,outputting said elevation value for said input location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. In a geocoding system having a segment data set, an elevation determining subsystem comprising:
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means for inputting a location into said geocoding system; means for determining a closest segment in said segment data set to said location; means for accessing a data set of elevation data for said closest segment; means for determining a segment elevation value for each of two segment elevation points associated with said closest segment; means for determining the elevation value of said location based on interpolation of said location in relation to each said two segment elevation points and said segment elevation value of each of said two segment elevation points; and
,means for outputting said elevation value for said input location. - View Dependent Claims (13)
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Specification