ISO 10303-521:2011(E)


Application interpreted construct: Manifold subsurface	ISO 10303-521:2011(E) © ISO

Cover page
Table of contents
Copyright
Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
3.2 Abbreviated terms

4 EXPRESS short listing
4.1 General
4.2 Fundamental concepts and assumptions
4.3 Manifold subsurface entity definition
4.4 Manifold subsurface function definitions

A Short names of entities
B Information object registration
C Computer interpretable listings
D EXPRESS-G diagrams
E Examples
Bibliography
Index

Introduction

ISO 10303 is an International Standard for the computer-interpretable representation of product information and for the exchange of product data. The objective is to provide a neutral mechanism capable of describing products throughout their life cycle. This mechanism is suitable not only for neutral file exchange, but also as a basis for implementing and sharing product databases, and as a basis for retention and archiving.

An application interpreted construct (AIC) provides a logical grouping of interpreted constructs that supports a specific functionality for the usage of product data across multiple application contexts. An interpreted construct is a common interpretation of the integrated resources that supports shared information requirements among application protocols.

This part of ISO 10303 specifies an application interpreted construct for the representation of manifold subsurface. This provides the definition of a shape representation containing open shells, each of which is identified as being part of another open or closed shell. The shells are defined using faces with explicit topology and fully defined geometry. The faces of the shells defined in this AIC either use the advanced_face definition from ISO 10303-511, or have similar properties.

Technical modifications to the first edition of this part of ISO 10303 are categorised as follows: changes to the EXPRESS declarations, new EXPRESS declarations, and changes to definitions of EXPRESS entity data types.

The following aic_manifold_subsurface EXPRESS declarations and interface specifications have been modified:

manifold_subsurface_shape_representation;
advanced_face_properties.