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https://github.com/IfcOpenShell/IfcOpenShell.git
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Dion Moult
58 lines
2.1 KiB
Python
58 lines
2.1 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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import os
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import json
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import ifcopenshell
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import ifcopenshell.util.element
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cwd = os.path.dirname(os.path.realpath(__file__))
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ifc4_to_brick_map = {}
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with open(os.path.join(cwd, "ifc4_to_brick.json")) as f:
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ifc4_to_brick_map = json.load(f)
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def get_brick_type(element):
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result = None
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predefined_type = ifcopenshell.util.element.get_predefined_type(element)
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if predefined_type:
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result = ifc4_to_brick_map.get(f"{element.is_a()}.{predefined_type}", None)
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if not result:
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result = ifc4_to_brick_map.get(element.is_a(), None)
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if not result:
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element_type = ifcopenshell.util.element.get_type(element)
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if element_type:
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ifc_type_class = element_type.is_a().replace("Type", "")
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result = ifc4_to_brick_map.get(f"{ifc_type_class}.{predefined_type}", None)
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if not result:
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result = ifc4_to_brick_map.get(ifc_type_class, None)
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if result:
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return f"https://brickschema.org/schema/Brick#{result}"
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# We choose equipment as a generic fallback
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return f"https://brickschema.org/schema/Brick#Equipment"
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def get_brick_elements(ifc_file):
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elements = set(ifc_file.by_type("IfcDistributionElement"))
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elements = elements.difference(ifc_file.by_type("IfcFlowSegment"))
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elements = elements.difference(ifc_file.by_type("IfcFlowFitting"))
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return elements
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