GB/T 16656.42-1998 Industrial automation systems and integration. Product data representation and exchange. Part 42: Integrated generic resources: Geometric and topological representation (English Version)
This part of GB/T 16656 specifies resource structures for explicit geometric and topological representations of product shapes, the scope of which is determined by the need for an explicit representation of an ideal product model. Tolerances and implied shapes represented by features are beyond the scope of this document. The geometry in Chapter 4 and the topology in Chapter 5 can be applied independently, and are also widely used in various shapes of the geometry model in Chapter 6. In addition, this standard specifies the scope of restricted representation concepts in which the represented elements are geometric.
GB/T 16656.42-1998 history
2010GB/T 16656.42-2010 Industrial automation systems and integration.Product data representation and exchange.Part 42:Integrated generic resource:Geometric and topological representation
1998GB/T 16656.42-1998 Industrial automation systems and integration. Product data representation and exchange. Part 42: Integrated generic resources: Geometric and topological representation