ifcopenshell.api.material.edit_layer

Module Contents

ifcopenshell.api.material.edit_layer.edit_layer(file: ifcopenshell.file, layer: ifcopenshell.entity_instance, attributes: dict[str, Any] | None = None, material: ifcopenshell.entity_instance | None = None) → None

Edits the attributes of an IfcMaterialLayer

For more information about the attributes and data types of an IfcMaterialLayer, consult the IFC documentation.

Parameters:

• layer (ifcopenshell.entity_instance) – The IfcMaterialLayer entity you want to edit

• attributes (dict, optional) – a dictionary of attribute names and values.

• material (ifcopenshell.entity_instance, optional) – The IfcMaterial entity you want the layer to be made from.

Returns:

None

Return type:

None

Example:

# Let's create two materials typically used for steel stud partition
# walls with gypsum lining.
gypsum = ifcopenshell.api.material.add_material(model, name="PB01", category="gypsum")
steel = ifcopenshell.api.material.add_material(model, name="ST01", category="steel")

# Create a material layer set to contain our layers.
material_set = ifcopenshell.api.material.add_material_set(model,
    name="GYP-ST-GYP", set_type="IfcMaterialLayerSet")

# Now let's use those materials as three layers in our set, such
# that the steel studs are sandwiched by the gypsum. Let's imagine
# we're setting the layer thickness in millimeters.
layer = ifcopenshell.api.material.add_layer(model, layer_set=material_set, material=gypsum)
ifcopenshell.api.material.edit_layer(model, layer=layer, attributes={"LayerThickness": 13})
layer = ifcopenshell.api.material.add_layer(model, layer_set=material_set, material=steel)
ifcopenshell.api.material.edit_layer(model, layer=layer, attributes={"LayerThickness": 92})
layer = ifcopenshell.api.material.add_layer(model, layer_set=material_set, material=gypsum)
ifcopenshell.api.material.edit_layer(model, layer=layer, attributes={"LayerThickness": 13})