ISO 10303-214:2010(E)

4.1.10 connected_surface_model (G3)

This unit of functionality provides the capability to represent geometry as a surface model that is topologically bounded.

Topological relationships are modelled explicitly by using objects, i.e., face, loop, edge, and vertex. The bounded surfaces in this UoF are connected. A model shall be manifold. A facility to associate transition information with a pair of adjacent faces or with a pair of adjacent edges is provided. Trimming and composition of curves and surfaces are represented by applying topological objects, i.e., vertex, edge, loop, and face.

This UoF contains the same geometric representations of points, unbounded curves, and unbounded surfaces as in UoF G2 and in UoF G8 but, unlike these UoFs, does not support geometric constructs for bounding and connecting geometric objects. The connected_surface_model UoF has the additional functionality of representing points and curves in the parameter space of curves and surfaces, respectively.

EXAMPLE Examples for curves represented in the parameter space of surfaces are intersection curves or seam curves.

The following application objects are used by the connected_surface_model UoF:



© ISO 2010 — All rights reserved