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Geometric data transfer between CAD systems: solid models

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4 Author(s)
Kroszynski, U.I. ; Tech. Univ. of Denmark, Lyngby, Denmark ; Palstroem, B. ; Trostmann, E. ; Schlechtendahl, E.G.

The first phase of the ESPRIT project CAD*I resulted in a specification for the exchange of solid models as well as in some pilot implementations of processors based on this specification. The authors summarize the CAD*I approach, addressing the structure of neutral files for solids, entities, and attributes supporting three kinds of representations: facilities for the transfer of parametric designs; referencing library components; and other general mechanisms. They also describe the current state of the specification and processor implementations and include an example of a CAD*I neutral file. Results from cycle and intersystem solid model transfer tests are presented, showing the practicality of the CAD*I proposal. B-rep model transfer results are discussed in some detail. The relationship of this work to standardization efforts is outlined.<>

Published in:

Computer Graphics and Applications, IEEE  (Volume:9 ,  Issue: 5 )