Abstract Class Name: Edge Direction

Superclass - SEDRIS Abstract Base

Subclasses

• Feature Edge Direction
• Feature Ring Edge Direction
• Geometry Edge Direction
• Geometry Ring Edge Direction

Definition

Link data that indicates the relationship between the orientation of a Feature Edge or Geometry Edge, and the orientation of a Linear Feature, Line, Feature Face Ring, or Geometry Face Ring.

Primary Page in DRM Diagram:

• 11

Example

1. A Linear Feature represents a one-way street. Its path is defined by a Feature Edge. The Edge Direction information indicates whether the orientation of the Feature Edge matches the permitted direction of travel along the one-way street.

FAQs

How should Edge Direction values be interpreted?

A value of TRUE indicates that the Feature Edge or Geometry Edge is oriented in the same direction as the Linear Feature, Line, Feature Face Ring, or Geometry Face Ring. A value of FALSE either indicates the orientation of the Feature Edge or Geometry Edge is the opposite of the Linear Feature, Line, Feature Face Ring, or Geometry Face Ring, or indicates that the Linear Feature or Line has no clearly defined orientation.

Constraints

Field Elements