Map Information Processing Apparatus And Storage Medium Of Map Information
First Claim
1. A map information processing apparatus comprising:
- a map information storage device for storing map information containing map data; and
a processor for updating the map information stored in said map information storage device, wherein road network data contained in the map data stored in said map information storage device has a data structure in which;
said road network data is composed of link strings each of which represents a series of roads in a road network as a series of links connecting nodes, said road network being represented by the nodes indicating points on the roads and by the links indicating the roads between the points;
each of said link strings is represented by a link string record in which link records defining the links are arranged in order of the series of the links;
each link constituting said link strings is provided with an invariable link identifier proper to each link; and
node indication information for designating each node included in said link strings is represented by the link identifier of the link having the node as its one end.
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Accused Products
Abstract
In a map information processing apparatus including a processor 5 for updating map information containing map data stored in a map information storage device 3, road network data contained in the map data stored in the map information storage device has a data structure in which the road network data is composed of link strings each of which represents a series of roads in a road network as a series of links connecting nodes, the road network being represented by the nodes and the links; each of the link strings is represented by a link string record in which link records defining the links are arranged in order of the series of the links; each link constituting the link strings is provided with an invariable link identifier proper to each link; and node indication information for designating each node included in the link strings is represented by the link identifier of the link having the node as its one end.
62 Citations
15 Claims
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1. A map information processing apparatus comprising:
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a map information storage device for storing map information containing map data; and
a processor for updating the map information stored in said map information storage device, wherein road network data contained in the map data stored in said map information storage device has a data structure in which;
said road network data is composed of link strings each of which represents a series of roads in a road network as a series of links connecting nodes, said road network being represented by the nodes indicating points on the roads and by the links indicating the roads between the points;
each of said link strings is represented by a link string record in which link records defining the links are arranged in order of the series of the links;
each link constituting said link strings is provided with an invariable link identifier proper to each link; and
node indication information for designating each node included in said link strings is represented by the link identifier of the link having the node as its one end. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A map information processing apparatus comprising:
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a map information storage device for storing map information containing map data; and
a processor for updating the map information stored in said map information storage device, wherein road network data contained in the map data stored in said map information storage device has a data structure in which;
said road network data is composed of link strings each of which represents a series of roads in a road network as a series of links connecting nodes, said road network being represented by the nodes indicating points on the roads and by the links indicating the roads between the points;
each of said link strings is represented by a link string record in which link records defining the links are arranged in order of the series of the links;
each of identical nodes contained in said link strings is provided with an invariable identical node identifier that is proper to the identical nodes; and
said identical node identifier is used to indicate a link for entering the node or a link for exiting from the node. - View Dependent Claims (14)
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15. A computer readable storage medium for storing map data containing road network data having a data structure in which:
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said road network data is composed of link strings each of which represents a series of roads in a road network as a series of links connecting nodes, said road network being represented by the nodes indicating points on the roads and by the links indicating the roads between the points;
each of said link strings is represented by a link string record in which link records defining the links are arranged in order of the series of the links;
each link constituting said link strings is provided with an invariable link identifier proper to each link; and
node indication information for designating each node included in said link strings is represented by the link identifier of the link having the node as its one end.
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Specification