Class

• <DRM Geometric Centre>

Superclass

• <DRM SEDRIS Abstract Base>

Subclass

• None.

Definition

An instance A of this DRM class is a component of an <DRM Aggregate Geometry> instance B (that is, of an instance of a concrete subclass of <DRM Aggregate Geometry>) where B represents a body such that the <DRM Location 3D> instance specified by A has the semantic indicated by A’s meaning field.

The meaning field specifies the semantic of the <DRM Location 3D> component of the given instance of <DRM Geometric Centre>.

Class diagram

Figure 6.104 — DRM_Geometric_Centre

Constraints

• Publishable Object

Example(s)

• Consider a <DRM Model> instance S providing a geometric representation of an ECC_SAILING_VESSEL as follows, where the srf_info of the <DRM Model> are specified to be LSR 3D.

  

  Figure 6.105 — <DRM Geometric Centre> example

  If S is instanced in a simulation where S is considered to be floating on water, the effects of the force of the water upon S can be computed for the CENTRE_OF_BUOYANCY <DRM Geometric Centre> to determine how they apply to S as a whole.

• Consider a <DRM Model> instance G providing a geometric representation of an ECC_GROUND_VEHICLE as follows, where the srf_info of the <DRM Model> are specified to be LSR 3D.

  

  Figure 6.106 — <DRM Geometric Centre> example

• Consider a <DRM Model> instance A providing a geometric representation of an ECC_AIRCRAFT as follows, where the srf_info of the <DRM Model> are specified to be LSR 3D.

  

  Figure 6.107 — <DRM Geometric Centre> example

  If A is instanced in a simulation where A is considered to be in the air, the effects of the force of the air upon A can be computed for the CENTRE_OF_PRESSURE <DRM Geometric Centre> to determine how they apply to A as a whole.