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Dion Moult
72 lines
3.3 KiB
Python
72 lines
3.3 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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class Usecase:
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def __init__(self, file, name=None, connection=None, ifc_class="IfcBoundaryNodeCondition"):
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"""Adds a new structural boundary condition to a structural connection
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The type of boundary condition depends on the connection. Point
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connections will have a node condition, curve connections will have an
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edge condition, and surface connections will have a face condition.
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:param name: The name of the boundary condition.
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:type name: str,optional
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:param connection: The IfcStructuralConnection to apply the boundary
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condition to. This will determine the type of condition that is
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created. If no connection is supplied, an orphan boundary condition
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will be created using the ifc_class that you specify.
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:type connection: ifcopenshell.entity_instance.entity_instance,optional
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:param ifc_class: The class of IfcBoundaryCondition to create, only
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relevant if you do not specify a connection and want to create an
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orphaned boundary condition.
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:type ifc_class: str,optional
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:return: The newly created IfcBoundaryCondition
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:rtype: ifcopenshell.entity_instance.entity_instance
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Example:
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.. code:: python
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ifcopenshell.api.run("structural.add_structural_boundary_condition", model, connection=connection)
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"""
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self.file = file
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self.settings = {"name": name, "connection": connection, "ifc_class": ifc_class}
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def execute(self):
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if self.settings["connection"]:
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# assign boundary condition to a connection
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if self.settings["connection"].is_a("IfcRelConnectsStructuralMember"):
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related_connection = self.settings["connection"].RelatedStructuralConnection
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else:
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related_connection = self.settings["connection"]
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if related_connection.is_a("IfcStructuralPointConnection"):
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boundary_class = "IfcBoundaryNodeCondition"
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elif related_connection.is_a("IfcStructuralCurveConnection"):
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boundary_class = "IfcBoundaryEdgeCondition"
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elif related_connection.is_a("IfcStructuralSurfaceConnection"):
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boundary_class = "IfcBoundaryFaceCondition"
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self.settings["connection"].AppliedCondition = self.file.create_entity(
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boundary_class, Name=self.settings["name"]
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)
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else:
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# add an orphan boundary condition
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return self.file.create_entity(self.settings["ifc_class"], Name=self.settings["name"])
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