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System and method to obtain surface structures of multi-dimensional objects, and to represent those surface structures for animation, transmission and display

  • US 20030052875A1
  • Filed: 01/07/2002
  • Published: 03/20/2003
  • Est. Priority Date: 01/05/2001
  • Status: Active Grant
First Claim
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1. A method of preparing data for displaying a surface of an n-dimensional body, n being at least 3, the method comprising the steps of:

  • obtaining an n-dimensional discrete mesh representation of the surface, the mesh representation of the surface comprising a plurality of boundary nodes, each boundary node lying on or adjacent to the surface, each boundary node being associated with connectivity information preferably comprising representations of up to (n−

    1) incoming and/or up to (n−

    1) outgoing directions towards 2*(n−

    1) adjacent boundary nodes adjacent to the said boundary node, the directions being defined in such a way that the cross product of the up to n−

    1 incoming or outgoing directions associated with any boundary node represents a further vector which points away from the surface at that boundary node.

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