102 lines
4.4 KiB
Python
102 lines
4.4 KiB
Python
# IfcOpenShell - IFC toolkit and geometry engine
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# Copyright (C) 2021 Dion Moult <dion@thinkmoult.com>
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#
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# This file is part of IfcOpenShell.
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#
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# IfcOpenShell is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# IfcOpenShell is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with IfcOpenShell. If not, see <http://www.gnu.org/licenses/>.
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from typing import Optional
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import ifcopenshell
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def add_profile(
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file: ifcopenshell.file,
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profile_set: ifcopenshell.entity_instance,
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material: Optional[ifcopenshell.entity_instance] = None,
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profile: Optional[ifcopenshell.entity_instance] = None,
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name: Optional[str] = None,
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) -> ifcopenshell.entity_instance:
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"""Add a new profile item to a profile set
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A profile item in a profile set represents an extruded 2D profile curve
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that is extruded along the axis of the element. Most commonly there will
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only be a single profile item in a profile set. For example, a beam will
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have a material profile set containing a single profile item, which may
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have a steel material and a I-beam shaped profile curve.
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Note that the "profile item" represents a single extrusion in the
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profile set, whereas the "profile curve" represents a 2D curve used by a
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"profile item".
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Profile is not optional for IfcMaterialProfile but it is optional for this API
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call and can be assigned later with material.assign_profile.
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In some cases, a profiled element (i.e. beam, column) may be a composite
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beam or column and include multiple extrusions. This is rare. The order
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of the profiles does not matter.
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:param profile_set: The IfcMaterialProfileSet that the profile is part of. The
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profile set represents a group of profile items. See
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ifcopenshell.api.material.add_material_set for more information on
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how to add a profile set.
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:param material: The IfcMaterial that the profile item is made out of.
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:param profile: The IfcProfileDef that represents the 2D cross section
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of the the profile item.
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:param name: An optional name of the material profile (not the geometric
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profile).
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:return: The newly created IfcMaterialProfile
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Example:
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.. code:: python
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# Let's imagine we have a steel I-beam. Notice we are assigning to
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# the type only, as all occurrences of that type will automatically
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# inherit the material.
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beam_type = ifcopenshell.api.root.create_entity(model, ifc_class="IfcBeamType", name="B1")
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# First, let's create a material set. This will later be assigned
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# to our beam type element.
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material_set = ifcopenshell.api.material.add_material_set(model,
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name="B1", set_type="IfcMaterialProfileSet")
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# Create a steel material.
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steel = ifcopenshell.api.material.add_material(model, name="ST01", category="steel")
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# Create an I-beam profile curve. Notice how we name our profiles
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# based on standardised steel profile names.
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hea100 = file.create_entity(
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"IfcIShapeProfileDef", ProfileName="HEA100", ProfileType="AREA",
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OverallWidth=100, OverallDepth=96, WebThickness=5, FlangeThickness=8, FilletRadius=12,
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)
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# Define that steel material and cross section as a single profile
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# item. If this were a composite beam, we might add multiple profile
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# items instead, but this is rarely the case in most construction.
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ifcopenshell.api.material.add_profile(model,
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profile_set=material_set, material=steel, profile=hea100)
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# Great! Let's assign our material set to our beam type.
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ifcopenshell.api.material.assign_material(model, products=[beam_type], material=material_set)
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"""
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profiles = list(profile_set.MaterialProfiles or [])
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mat_profile = file.create_entity("IfcMaterialProfile", Name=name)
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if material:
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mat_profile.Material = material
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if profile:
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mat_profile.Profile = profile
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profiles.append(mat_profile)
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profile_set.MaterialProfiles = profiles
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return mat_profile
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