Class Name: Geometry Face
Subclasses
This DRM class is concrete and has no subclasses.
Definition
An instance of this DRM class is used to represent a geometric region
that is bounded by one or more <Geometry Edge> instances. The
<Geometry Face> instance corresponds to a geometric region
where that geometric region may be defined by one or more
<Polygon> instances and/or linear geometric constructs.
The external boundary of a <Geometry Face>
instance is specified by its
<Geometry Edge> associates.
Primary Page in DRM Diagram:
Secondary Pages in DRM Diagram:
Example
<Geometry Face> instances may be
used to represent the topology of the upper surface of a forest canopy
represented by a set of <Polygon> instances.
FAQs
No FAQs supplied.
Constraints
Associated with (two-way)
Component of (two-way) (inherited)
Inherited Field Elements
This class has no inherited field elements.
Notes
Associated with Notes
These <Geometry Edge> instances specify the
border of the <Geometry Face> instance.
For level 3 topology or higher, any
<Geometry Node> instances
contained within the boundary of a
<Geometry Face> instance
have an association relationship with that
<Geometry Face>
instance to indicate the relationship.
For topology of less than level 3, the association relationship
between <Geometry Face> instances
and <Geometry Node> instances has
the same meaning, but data providers are not required to
supply the information.
The <Geometry Face> instance may
form part of a <Geometry Volume>
instance, possibly one for each side of the
<Geometry Face> instance.
Prev: Geometry Edge.
Next: Geometry Hierarchy.
Up:Index.