Patent
1993-06-14
1996-07-30
Jankus, Almis R.
395119, 395121, G06T 1720
Patent
active
055420303
ABSTRACT:
A system and method enabling computer meshing program to generate a finite element representation of an object is shown which receives problem definition variables relevant to the desired object, calls a projection control program to generate point surface projections based on such problem definition variables, and generates a finite element representation of the object based on the point surface projections received from the projection control program. The projection control program requests a projector to perform a point surface projection with a projector, and evaluates the point surface projection with respect to the problem definition variables to determine whether the projection was successful as well as to determine the projector's projection performance. The projection control program increments a plurality of diagnostic counters on the basis of the evaluation and updates a plurality of projection control switches on the basis of the diagnostic counter values. The preferred embodiment of the present invention maintains two projectors which the projection control program can alternate between based on the performance of the projectors and the particular problem variables presented. Whether a particular projector is disengaged is determined by the state of one of the projection control switches which state is affected by a combination of certain of the diagnostic counter values. Another of the projection control switches activates a guess search program. The projection controller activates the guess search program if the point projection was evaluated to be unsuccessful and no guess search was performed prior to the projection under evaluation.
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Electronic Data Systems Corporation
Griebenow L. Joy
Jankus Almis R.
Wingard Jody R.
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