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System and method of converting edge record based graphics to polygon based graphics

  • US 7,525,544 B2
  • Filed: 04/16/2004
  • Issued: 04/28/2009
  • Est. Priority Date: 04/17/2003
  • Status: Active Grant
First Claim
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1. A method for automated graphics conversion of graphic object data for efficient delivery from a graphic converter to wireless devices connected to a wireless communications network, the graphic object data defining a vector graphics object, the method comprising:

  • converting the graphic object data defining the vector graphics object from an edge record based format to a path format,the edge record based format including a plurality of edge records each defining an edge of the graphic object, the edge records including information associating the defined edges with fill styles that the edges border against,the path format including path elements that are each associated with a fill style and define one or more polygon shapes at least partially filled with the associated fill style, the path elements collectively defining the graphic object;

    converting the graphic object data from the path format to a second format, the conversion including;

    redefining the polygon shapes defined by the path elements as groups of triangles; and

    combining at least some triangles in the groups of triangles into further polygon shapes that fall within complexity thresholds based on predetermined capabilities of a wireless device; and

    transmitting the converted vector graphics object in the second format to the wireless device over the wireless communications network for display thereon.

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