Generating and serving tiles in a digital mapping system

Details Generating and serving tiles in a digital mapping system Generating and serving tiles in a digital mapping system

G - Physics

09

B

G09B 29/00 (2006.01) G06T 11/00 (2006.01) H04L 12/16 (2006.01)

Patent

CA 2560560

Digital tile-based mapping techniques are disclosed that enable efficient online serving of aesthetically pleasing maps. In one particular embodiment, an image tile-based digital mapping system is configured for generating map tiles during an offline session, and serving selected sets of those tiles to a client when requested. Also provided are solutions for handling map labels and other such features in a tile-based mapping system, such as when a map label crosses map file boundaries. Various processing environments (e.g., servers or other computing devices) can be employed in the system.

Selon cette invention, des techniques de cartographie numérique à base de pavés garantissent une fourniture en ligne efficace de cartes esthétiquement agréables. Dans un certain mode de réalisation de cette invention, un système de cartographie numérique à base de pavés d'images est configuré pour générer des pavés de carte lors d'une session hors ligne et pour fournir des ensembles sélectionnés de pavés à un client à sa demande. Cette invention offre par ailleurs des solutions pour la manipulation d'étiquettes de cartes et autres éléments caractéristiques dans un système de cartographie à base de pavés, par exemple lorsqu'une étiquette de carte croise les limites du pavé de la carte. Divers environnements de traitement (tels que des serveurs ou autres dispositifs de calcul) peuvent être employés dans le système.

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