Abstract
As CAD systems provide different levels of capabilities one cannot expect all systems to support the full schema in their pre- and post processors. On the other hand, it must not be left to the choice of the implementer of processors which subset of entities and attribute he wants to support. Thus, this specification includes a definition of allowable are of the complete subsets of the complete subsets schema. These allowable subsets characterized by a set of numbers, called levels. Such levels are used to identify
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1. the geometric modeling capabilities (lg)
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2. the capabilities of defining assembly structures (la)
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3. the capabilities for parametric models and macros (lp)
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4. the capabilities of references (lr)
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© 1988 ECSC - EEC - EAEC, Brussels - Luxembourg
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Schlechtendahl, E.G. (1988). Levels of a Schema Implementations. In: Schlechtendahl, E.G. (eds) Specification of a CAD * I Neutral File for CAD Geometry. Research Reports ESPRIT, vol 1. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-83622-0_6
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DOI: https://doi.org/10.1007/978-3-642-83622-0_6
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-50392-7
Online ISBN: 978-3-642-83622-0
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