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Automated re-layout with dimensional associativity

  • US 5,297,241 A
  • Filed: 09/30/1991
  • Issued: 03/22/1994
  • Est. Priority Date: 09/30/1991
  • Status: Expired due to Term
First Claim
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1. A method for interfacing between a solid modeler, which modeler describes objects in three-dimensional (3D) space, and a two-dimensional (2D) documentation package, which package provides 2D representations of objects which are projections of features of said objects onto a viewing plane, said method comprising a sequence of the following steps:

  • creating an original 3D analytical model of the object using the solid modeler;

    invoking a 2 D layout process to generate one or more of said 2D representations, which 2D representations are projections of said 3D model onto said viewing plane, and for each such 2D representation, associating projection format information regarding such 2D representation to permit the 2D representation to be reproduced later;

    storing in memory said one or more 2D representations and said projection format information associated therewith;

    modifying said 3D model of the object, using the 3D modeler to incorporate geometry changes in the object, thereby creating a modified 3D model; and

    invoking an automated re-layout process which interfaces with the solid modeler and said modified 3D model, and which recalls from memory said one or more stored 2D representations and said projection format information, and employs said projection format information to automatically generate modified ones of said one or more stored 2D representations which embody any geometry changes resulting from said modifications of the 3D model, wherein said modified one or more 2D representations, represent one or more projections of said modified 3D model onto said viewing plane in accordance with said projection format information.

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