GB/T 16656.502-2005 Industrial automation systems and integration.Product data representation and exchange.Part 502:Application interpreted construct:Shell-based wireframe (English Version)
This part of GB/T 16656 specifies the interpretation of integrated resources to satisfy the expression of product shape using a three-dimensional wireframe model whose boundaries are bounded by a set of shells. This standard applies to: - representations of wireframe models described by edges and vertices that intersect only at their vertices. - A wireframe model representation consisting of one or more shells that overlap or intersect only at vertices or boundaries. - A point defined in a three-dimensional coordinate space. - Curves defined in a three-dimensional coordinate space, including B-splines. ——Single wireframe model expression or wireframe model combined expression. This section does not apply to: - geometry defined in a two-dimensional coordinate space; - surface geometry; - solid geometry; - references to deleted constructs.
GB/T 16656.502-2005 Referenced Document
GB/T 16262-1996 Information processing system--Open systems interconnection--Specification of abstract syntax notation one (ASN.1)
GB/T 16656.1-1998 Industrial automation systems and integration. Product data representation and exchange. Part 1: Overview and fundamental principles
GB/T 16656.11-1996 Industrial automation systems and integration--Product Data Representation and Exchange--(STEP) Part 11: Descriptive methods: The EXPRESS language reference manual
GB/T 16656.41-1999 Industrial automation systems and integration-Product data representation and exchange-Part 41: Integrated generic resources: Fundamentals of product description and support
GB/T 16656.42-1998 Industrial automation systems and integration. Product data representation and exchange. Part 42: Integrated generic resources: Geometric and topological representation
GB/T 16656.502-2005 history
2005GB/T 16656.502-2005 Industrial automation systems and integration.Product data representation and exchange.Part 502:Application interpreted construct:Shell-based wireframe