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Modification of a constrained asymmetrical subdivision mesh

  • US 10,289,771 B2
  • Filed: 08/16/2016
  • Issued: 05/14/2019
  • Est. Priority Date: 12/16/2015
  • Status: Active Grant
First Claim
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1. A method of modifying a finite element mesh representation of a computer aided design (CAD) 3D model representing a real-world object, the method comprising:

  • by a user, defining a symmetric constraint of a finite element mesh using a graphical user interface coupled to a processor, the finite element mesh being a representation of a subject CAD 3D model including a shape of the subject CAD 3D model, and the symmetric constraint including two asymmetric zones of the finite element mesh to be modified symmetrically;

    automatically identifying, by the processor, corresponding finite elements between the two asymmetric zones;

    performing by the user, user-interactively through the graphical user interface, modification to shape of the finite element mesh through a manipulation to at least one of the identified corresponding finite elements of the two asymmetric zones; and

    performing automatically by the processor a symmetrical manipulation on a second or more of the identified corresponding finite elements, the second or more finite elements identified as corresponding to the at least one finite element, wherein performing the symmetrical manipulation results in the two asymmetric zones of the finite element mesh being modified symmetrically thereby representing a symmetrical modification to the shape of the subject CAD 3D model.

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