Schematic generation
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Abstract
A method of generating data representative of a geographical network (such as a road network) is disclosed, comprising steps of selecting from a database (2) data relating to an extended junction (formed from at least one node at least one edge) and outputting the selected data. The method address problems in existing devices relating to the selection of appropriate data, and finds particular application in the field of mobile devices and the like. Apparatus for generating data representative of a geographical network and a method of providing a graphical schematic of a location are also disclosed.
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Citations
152 Claims
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1-105. -105. (canceled)
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106. A method of providing graphical schematic data to a mobile device, the method comprising the steps of:
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retrieving geographical data representative of a geographical network from a database, the data including a plurality of geographical features;
receiving configuration data indicative of a property of the device;
selecting one of a plurality of schematic types in dependence on the configuration data;
selecting a set of geographical features from the geographical data;
in accordance with the selected schematic type, processing the selected geographical features in accordance with a geometrical simplification algorithm and generating a graphical schematic from the processed geographical features; and
outputting the graphical schematic to the device. - View Dependent Claims (107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 152)
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151. Apparatus for providing graphical schematic data to a mobile device, comprising:
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means for retrieving geographical data representative of a geographical network from a database, the data including a plurality of geographical features;
means for receiving configuration data indicative of a property of the device;
means for selecting one of a plurality of schematic types in dependence on the configuration data;
means for selecting a set of geographical features from the geographical data;
means for, in accordance with the selected schematic type, processing the selected geographical features in accordance with a geometrical simplification algorithm and generating a graphical schematic from the processed geographical features; and
means for outputting the graphical schematic to the device.
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Specification