STEPを利用したCADデータベースインタフェースの標準化

概要

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This paper describes a common CAD database access interface, which provides a method to use CAD data as the data of a STEP Application Protocol in an application program. While writing and/or reading STEP data using the interface, data is converted in a unit of entity instance, and the conversion between CAD data and STEP data is embedded between the common access interface and the CAD database access interface. EXPRESS is used to define the interface as a set of schema definitions of STEP AP, CAD data schema and a special data schema representing the corresponding relations between CAD and STEP. The conversion definition style in EXPRESS is also given. From the interface definition, the interface programs can be generated. Using the CAD database access interface proposed in this paper, application programs are dependent only on STEP Application Protocol, therefore independent of any specific CAD system.
公益社団法人精密工学会の論文
1993-08-05