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Dynamic view-based data layer in a geographic information system

  • US 8,350,849 B1
  • Filed: 05/14/2012
  • Issued: 01/08/2013
  • Est. Priority Date: 06/27/2005
  • Status: Active Grant
First Claim
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1. A method for providing layered information in a geographic information system, comprising:

  • receiving a request for a map comprising a current view for display on-screen;

    receiving a specification of a border width profile of an off-screen border region around the current view, wherein widths of the border region are adjusted in size based on motion of the current view and previous latency of a search server;

    rendering the map by a processor, the map comprising a current view for display on-screen and an off-screen border region wherein the width profile of the off-screen border region is determined by the border width profile;

    receiving a search query, the search query comprising search terms that identify items to place on a map, the search query relevant to a geospatial search region comprising the map;

    providing the search query to the search server;

    receiving results of the search query from the search server, the results comprising items to place on a map in the geospatial search region;

    rendering the results of the search query into a virtual data layer overlaying on the map; and

    displaying a portion of the virtual data layer, the portion comprising the items within the current view.

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