4.1.7.1.7 CoG Geometry

Elements may have a 'CoG' representation describing the Center of Gravity as a point. Such representation may be used for allowing validation checks to verify, that the CoG after import of the 'Body' shape representation matches this explicit value created during export, taking acceptable numeric tolerances into account.

The representation identifier and type and the only allowed single representation item of the 'CoG' representation are:

IfcShapeRepresentation.RepresentationIdentifier = 'CoG'
IfcShapeRepresentation.RepresentationType : 'Point'
IfcShapeRepresentation.Items = IfcCartesianPoint

The following diagram shows the generic classes and relationships used when applying this concept. In addition, concepts may have particular importance to common or standardised industry practices and scenarios. For these specific usage scenarios, the table below shows a recommended list of general usage patterns that users may adopt.

Figure 4.1.7.1.7.A

General Usage

ApplicableEntity
IfcProduct

Table 4.1.7.1.7.B