Technique for structuring a navigation database
First Claim
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1. A method of structuring a navigation database, wherein the navigation database comprises at least route link data for a predetermined geographic area, comprising:
- organizing route link data associated with the predetermined geographic area into at least one routing cluster;
providing the at least one routing cluster with a cluster identifier; and
storing the at least one routing cluster together with the cluster identifier in the navigation database,wherein the predetermined geographic area is further partitioned into tiles,wherein the organizing step further comprises, for each tile, organizing route link data associated with the tile into at least one routing cluster, andwherein the at least one routing cluster is addressable by at least one index structure comprising the cluster identifier that is provided to the navigation database.
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Abstract
A technique of structuring a navigation database is provided, wherein the navigation database includes at least route link data for a predetermined geographic area. A method implementation of the technique includes organizing route link data associated with the predetermined geographic area into at least one routing cluster; providing the at least one routing cluster with a cluster identifier; and storing the at least one routing cluster together with the cluster identifier in the navigation database.
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17 Claims
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1. A method of structuring a navigation database, wherein the navigation database comprises at least route link data for a predetermined geographic area, comprising:
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organizing route link data associated with the predetermined geographic area into at least one routing cluster; providing the at least one routing cluster with a cluster identifier; and storing the at least one routing cluster together with the cluster identifier in the navigation database, wherein the predetermined geographic area is further partitioned into tiles, wherein the organizing step further comprises, for each tile, organizing route link data associated with the tile into at least one routing cluster, and wherein the at least one routing cluster is addressable by at least one index structure comprising the cluster identifier that is provided to the navigation database. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A navigation database comprising;
at least route link data for a predetermined geographic area, wherein the predetermined geographic area is partitioned into tiles, wherein for each tile the at least route link data associated with the tile are organized into at least one routing cluster with cluster identifier, and wherein the navigation database further comprises at least one index structure comprising the cluster identifier via which the at least one routing cluster is accessible. - View Dependent Claims (15, 16, 17)
Specification