ifcopenshell.api.spatial.unassign_container#

Module Contents#

class ifcopenshell.api.spatial.unassign_container.Usecase(file, product=None)#

Unassigns a container from a product.

Parameters

product (ifcopenshell.entity_instance.entity_instance) – The IfcProduct to remove the containment from.

Returns

None

Return type

None

Example:

project = ifcopenshell.api.run("root.create_entity", model, ifc_class="IfcProject")
site = ifcopenshell.api.run("root.create_entity", model, ifc_class="IfcSite")
building = ifcopenshell.api.run("root.create_entity", model, ifc_class="IfcBuilding")
storey = ifcopenshell.api.run("root.create_entity", model, ifc_class="IfcBuildingStorey")

# The project contains a site (note that project aggregation is a special case in IFC)
ifcopenshell.api.run("aggregate.assign_object", model, product=site, relating_object=project)

# The site has a building, the building has a storey, and the storey has a space
ifcopenshell.api.run("aggregate.assign_object", model, product=building, relating_object=site)
ifcopenshell.api.run("aggregate.assign_object", model, product=storey, relating_object=building)

# Create a wall
wall = ifcopenshell.api.run("root.create_entity", model, ifc_class="IfcWall")

# The wall is in the storey
ifcopenshell.api.run("spatial.assign_container", model, product=wall, relating_structure=storey)

# Not anymore!
ifcopenshell.api.run("spatial.unassign_container", model, product=wall)
execute(self)#