ifcopenshell.api.cost.remove_cost_item_quantity

Module Contents

ifcopenshell.api.cost.remove_cost_item_quantity.remove_cost_item_quantity(file: ifcopenshell.file, cost_item: ifcopenshell.entity_instance, physical_quantity: ifcopenshell.entity_instance) → None

Removes a quantity assigned to a cost item

If the quantity is part of a product (e.g. wall), then the quantity will still exist and merely the relationship to the cost item will be removed.

Parameters:

• cost_item (ifcopenshell.entity_instance) – The IfcCostItem that the quantity is assigned to

• physical_quantity (ifcopenshell.entity_instance) – The IfcPhysicalQuantity to remove

Returns:

None

Return type:

None

Example:

schedule = ifcopenshell.api.cost.add_cost_schedule(model)
item = ifcopenshell.api.cost.add_cost_item(model, cost_schedule=schedule)
quantity = ifcopenshell.api.cost.add_cost_item_quantity(model,
    cost_item=item, ifc_class="IfcQuantityVolume")
# Let's change our mind and delete it
ifcopenshell.api.cost.remove_cost_item(model,
    cost_item=item, physical_quantity=quantity)