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US 2014/0181189 A1Published application
Geospatial visualization performance improvement for contiguous polylines with similar dynamic characteristics
AssigneeInternational Business Machines Corporation
InventorsCurtis H. BROBST, James P. CANTWELL, Magda M. MOURAD
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Abstract
Techniques are disclosed for rendering geographic information system (GIS) data. A server component responding to a request for GIS data for a given area combines contiguous elements that share the same dynamic characteristics. For example, a map server may combine the polylines of contiguous road segments sharing the same current speed/congestion conditions. Doing so may greatly reduce the number of individual polylines that are sent to a client for rendering.
Claims1
A computer implemented method of responding to a request for map data, comprising:
- receiving a request for map data to render a visualization of a map;
- determining static map data responsive to the request, wherein the static map data includes a set of static map elements to be rendered at specified locations in the visualization of the map;
- determining dynamic map data responsive to the request, wherein the dynamic map data includes information characterizing a dynamic state for a plurality of dynamic map elements to be rendered at specified locations in the visualization of the map;
- combining adjacent dynamic map elements which share a common dynamic state into combined dynamic map elements;
- and
- outputting the static map elements and the dynamic map elements for rendering.
3 more elements
Dependencies are inferred from the claim text.