Title :
Geometric data transfer between CAD systems: solid models
Author :
Kroszynski, Uri I. ; Palstroem, Bjame ; Trostmann, Erik ; Schlechtendahl, Emst G.
Author_Institution :
Tech. Univ. of Denmark, Lyngby, Denmark
Abstract :
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.<>
Keywords :
CAD; computational geometry; data structures; engineering graphics; solid modelling; B-rep model transfer results; CAD systems; ESPRIT project CAD*I; geometric data transfer; intersystem solid model transfer tests; neutral files; parametric designs; pilot implementations; processor implementations; referencing library components; solid models; specification; standardization efforts; Application software; CADCAM; Computer aided manufacturing; Computer integrated manufacturing; Design automation; Production; Proposals; Quality assurance; Solid modeling; Virtual manufacturing;
Journal_Title :
Computer Graphics and Applications, IEEE
