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IfcOpenShell/src/ifcopenshell-python/ifcopenshell/api/constraint/data.py
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2022-01-19 12:18:33 +11:00

106 lines
3.7 KiB
Python

# IfcOpenShell - IFC toolkit and geometry engine
# Copyright (C) 2021 Dion Moult <dion@thinkmoult.com>
#
# This file is part of IfcOpenShell.
#
# IfcOpenShell is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# IfcOpenShell is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with IfcOpenShell. If not, see <http://www.gnu.org/licenses/>.
import ifcopenshell
import ifcopenshell.util.date
from datetime import datetime
class Data:
is_loaded = False
products = {}
objectives = {}
metrics = {}
references = {}
@classmethod
def purge(cls):
cls.is_loaded = False
cls.products = {}
cls.objectives = {}
cls.metrics = {}
cls.references = {}
@classmethod
def load(cls, file, product_id=None):
cls._file = file
if not cls._file:
return
if product_id:
return cls.load_product(product_id)
cls.load_objectives()
cls.load_metrics()
cls.load_references()
cls.is_loaded = True
@classmethod
def load_product(cls, product_id):
product = cls._file.by_id(product_id)
cls.products[product_id] = []
if not product.HasAssociations:
return
for association in product.HasAssociations:
if association.is_a("IfcRelAssociatesConstraint"):
if not association.RelatingConstraint.is_a("IfcObjective"):
continue # not yet implemented
cls.products[product_id].append(association.RelatingConstraint.id())
@classmethod
def load_objectives(cls):
cls.objectives = {}
for constraint in cls._file.by_type("IfcObjective"):
data = constraint.get_info()
for key, value in data.items():
if not value:
continue
if cls._file.schema == "IFC2X3":
for attribute in ["CreationTime"]:
if data[attribute]:
data[attribute] = ifcopenshell.util.date.ifc2datetime(data[attribute]).isoformat()
data["BenchmarkValues"] = [metric.id() for metric in constraint.BenchmarkValues or []]
cls.objectives[constraint.id()] = data
@classmethod
def load_metrics(cls):
cls.metrics = {}
for metric in cls._file.by_type("IfcMetric"):
data = metric.get_info()
for key, value in data.items():
if not value:
continue
data["ConstrainedObjects"] = []
for association in cls._file.by_type("IfcRelAssociatesConstraint"):
if association.RelatingConstraint.id() == metric.id():
data["ConstrainedObjects"] = [o.id() for o in association.RelatedObjects or []]
if metric.DataValue:
data["DataValue"] = data["DataValue"].id()
if metric.ReferencePath:
data["ReferencePath"] = data["ReferencePath"].id()
cls.metrics[metric.id()] = data
@classmethod
def load_references(cls):
cls.references = {}
for reference in cls._file.by_type("IfcReference"):
data = reference.get_info()
for key, value in data.items():
if not value:
continue
cls.references[refenrece.id()] = data