MIDAS SDAI Implementation

摘要

The report describes the implementation of the STEP Standard Data AccessInterface (SDAI) used within the EC Project MIDAS. MIDAS (ESPRIT project 7294) was a three year project which brought together the software from different vendors in the areas of solid modelling, advanced mesh generation, stress analysis and electromagnetic analysis to provide an integrated suite of software with a common user interface and a common database. The common data management and exchange mechanism was based on the STEP technology. STEP is now starting to be used as an integration tool between CAD applications. Electromagnetic analysis is not covered presently by STEP but the existing models and methodology can be used and extended into this area. Part of the STEP methodology includes the definition of a STEP Data Access Interface (SDAI) and how the STEP information models can be accessed in a common database using this interface. The report describes how a C late binding SDAI has been implemented on top of the DEVA database in order to access the STEP compatible data models defined within the MIDAS project for electromagnetic analysis. (Copyright (c) Council for the Central Laboratory of the Research Councils 1996.)