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OVERLAYING TRANSPARENCY IMAGES INCLUDING PIXELS CORRESPONDING TO DIFFERENT HEIRARCHICAL LEVELS OVER A GEOGRAPHIC MAP

  • US 20130257903A1
  • Filed: 03/30/2012
  • Published: 10/03/2013
  • Est. Priority Date: 03/30/2012
  • Status: Active Grant
First Claim
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1. A method comprising:

  • receiving, by a computer, data records containing corresponding values of an attribute, where the data records are associated with location information;

    generating, by the computer, hierarchical levels of transparency images, where each of the transparency images includes corresponding pixels that represent the respective data records, and where the transparency images at different ones of the hierarchical levels correspond to different zoom levels of a geographic map; and

    overlaying, over the geographic map, at least one of the transparency images at a dynamically selected one of the hierarchical levels according to which of the zoom levels is selected by a user in zooming of the geographic map, wherein the at least one transparency image is automatically selected without user input.

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