| 类 | 说明 |
|---|---|
| IfcConstraint | |
| IfcConstraintAggregationRelationship | |
| IfcConstraintClassificationRelationship | |
| IfcConstraintRelationship | |
| IfcMetric |
An IfcMetric is used to capture quantitative resultant metrics that can be applied to objectives.
|
| IfcObjective |
An IfcObjective captures qualitative information for an objective-based constraint.
|
| IfcPropertyConstraintRelationship |
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