Abstract Class Name: Transformation

Superclass - <SEDRIS Abstract Base>

Subclasses

• <LSR Transformation>
• <World Transformation>

Definition

A <Transformation> is applied to the child graph containing the transformation. <Location 3D> and < Reference Vectors> are always affected by <Transformations>. Angles and ranges are generally NOT affected by <Transformations>.

A <World Transformation> can exist without having a matrix or transformation steps, in which case the identity matrix is assumed, but an <LSR Transformation> shall have either a matrix or transformation steps, or both.

Primary Page in DRM Diagram:

• 7

Secondary Pages in DRM Diagram:

Example

1. The location and orientation of a building instanced on to the terrain.
2. The <Translation>, <Rotation>, and <Scale> applied to a gun barrel when modeled into a tank turret.
3. The location, and orientation of a grid defining a liquid water content layer referenced to the terrain.
4. The <Transformation> that enables the use of a sidewinder missile with horizontal orientation when it was modeled standing vertically on its fins.
5. The <Transformation> into place of a logical <Model> sub-graph, e.g., the superstructure of a ship.

Constraints

Component of (two-way)

• zero or more <Feature Model Instance> instances
• zero or more <Geometry Model Instance> instances

Inherited Field Elements