mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-28 15:53:00 +00:00
Richard Brice
ae6eb4d18a
IfcSIUnit.Dimensions is a schema-derived attribute that isn't computed for Bonsai's SQLite-linked "large model" file representation, returning None there instead of an IfcDimensionalExponents entity. #9278 added an unconditional unit.Dimensions.LengthExponent access to every IfcSIUnit processed by calculate_unit_scale(), so it crashed project loading for any linked file, even ones with no unit prefixes at all -- not just the prefixed-area/volume case the fix targeted. Fixed by reading dimensions from the existing si_dimensions table (keyed by the unit's stored Name, not the unresolvable derived attribute) instead of unit.Dimensions. See the PR discussion for a standalone reproduction script.
482 lines
26 KiB
Python
482 lines
26 KiB
Python
# IfcOpenShell - IFC toolkit and geometry engine
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# Copyright (C) 2023 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 tempfile
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from math import pi
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from pathlib import Path
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import numpy as np
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import pytest
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import ifcopenshell.api.context
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import ifcopenshell.api.georeference
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import ifcopenshell.api.pset
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import ifcopenshell.api.root
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import ifcopenshell.api.unit
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import ifcopenshell.util.element
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import ifcopenshell.util.geolocation
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import ifcopenshell.util.unit as subject
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import ifcpatch
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import test.bootstrap
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from ifcopenshell.util.shape_builder import ShapeBuilder
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from ifcpatch.recipes import Ifc2Sql
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class TestMmToM:
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def test_converts_a_positive_value(self):
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assert subject.mm_to_m(150) == 0.15
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def test_returns_zero_for_zero(self):
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assert subject.mm_to_m(0) == 0.0
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def test_passes_through_negative_values(self):
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assert subject.mm_to_m(-25) == -0.025
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class TestCacheUnits(test.bootstrap.IFC4):
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def test_run(self):
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ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcProject")
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length = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="LENGTHUNIT", prefix="MILLI")
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area = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="AREAUNIT")
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ifcopenshell.api.unit.assign_unit(self.file, units=[length, area])
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assert self.file.units == {}
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subject.cache_units(self.file)
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assert self.file.units == {"LENGTHUNIT": length, "AREAUNIT": area}
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class TestClearUnitCache(test.bootstrap.IFC4):
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def test_run(self):
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ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcProject")
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length = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="LENGTHUNIT", prefix="MILLI")
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area = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="AREAUNIT")
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ifcopenshell.api.unit.assign_unit(self.file, units=[length, area])
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subject.cache_units(self.file)
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subject.clear_unit_cache(self.file)
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assert self.file.units == {}
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class TestGetProjectUnit(test.bootstrap.IFC4):
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def test_run(self):
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ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcProject")
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length = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="LENGTHUNIT", prefix="MILLI")
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area = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="AREAUNIT")
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ifcopenshell.api.unit.assign_unit(self.file, units=[length, area])
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assert subject.get_project_unit(self.file, "LENGTHUNIT") == length
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assert subject.get_project_unit(self.file, "AREAUNIT") == area
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def test_using_a_cache(self):
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ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcProject")
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length = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="LENGTHUNIT", prefix="MILLI")
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length2 = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="LENGTHUNIT", prefix="CENTI")
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area = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="AREAUNIT")
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ifcopenshell.api.unit.assign_unit(self.file, units=[length, area])
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assert self.file.units == {}
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assert subject.get_project_unit(self.file, "LENGTHUNIT", use_cache=True) == length
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assert self.file.units == {"LENGTHUNIT": length, "AREAUNIT": area}
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ifcopenshell.api.unit.assign_unit(self.file, units=[length2])
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assert subject.get_project_unit(self.file, "LENGTHUNIT", use_cache=True) == length
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subject.clear_unit_cache(self.file)
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assert subject.get_project_unit(self.file, "LENGTHUNIT", use_cache=True) == length2
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assert self.file.units == {"LENGTHUNIT": length2, "AREAUNIT": area}
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class TestGetPropertyUnit(test.bootstrap.IFC4):
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def test_no_unit(self):
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ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcProject")
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prop = self.file.createIfcQuantityLength(Name="Foo", LengthValue=42.0)
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assert subject.get_property_unit(prop, self.file) is None
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def test_simple_quantity(self):
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ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcProject")
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length = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="LENGTHUNIT", prefix="MILLI")
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length2 = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="LENGTHUNIT", prefix="CENTI")
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area = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="AREAUNIT")
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ifcopenshell.api.unit.assign_unit(self.file, units=[length, area])
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prop = self.file.createIfcQuantityLength(Name="Foo", LengthValue=42.0)
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assert subject.get_property_unit(prop, self.file) == length
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prop.Unit = length2
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assert subject.get_property_unit(prop, self.file) == length2
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def test_single_value(self):
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ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcProject")
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length = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="LENGTHUNIT", prefix="MILLI")
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length2 = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="LENGTHUNIT", prefix="CENTI")
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area = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="AREAUNIT")
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ifcopenshell.api.unit.assign_unit(self.file, units=[length, area])
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prop = self.file.createIfcPropertySingleValue(Name="Foo", NominalValue=self.file.createIfcLengthMeasure(42.0))
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assert subject.get_property_unit(prop, self.file) == length
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prop.Unit = length2
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assert subject.get_property_unit(prop, self.file) == length2
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def test_enumerated_value(self):
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ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcProject")
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length = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="LENGTHUNIT", prefix="MILLI")
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length2 = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="LENGTHUNIT", prefix="CENTI")
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area = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="AREAUNIT")
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ifcopenshell.api.unit.assign_unit(self.file, units=[length, area])
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prop = self.file.createIfcPropertyEnumeratedValue(
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Name="Foo", EnumerationValues=[self.file.createIfcLengthMeasure(42.0)]
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)
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assert subject.get_property_unit(prop, self.file) == length
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prop.EnumerationValues = []
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prop.EnumerationReference = self.file.createIfcPropertyEnumeration(
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"Foo", [self.file.createIfcAreaMeasure(42.0)]
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)
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assert subject.get_property_unit(prop, self.file) == area
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prop.EnumerationReference = self.file.createIfcPropertyEnumeration(
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"Foo", [self.file.createIfcAreaMeasure(42.0)], Unit=length2
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)
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assert subject.get_property_unit(prop, self.file) == length2
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prop.EnumerationValues = [self.file.createIfcAreaMeasure(42.0)]
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assert subject.get_property_unit(prop, self.file) == length2
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prop.EnumerationReference.Unit = None
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assert subject.get_property_unit(prop, self.file) == area
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def test_list_value(self):
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ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcProject")
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length = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="LENGTHUNIT", prefix="MILLI")
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length2 = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="LENGTHUNIT", prefix="CENTI")
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area = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="AREAUNIT")
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ifcopenshell.api.unit.assign_unit(self.file, units=[length, area])
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prop = self.file.createIfcPropertyListValue(Name="Foo", ListValues=[self.file.createIfcLengthMeasure(42.0)])
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assert subject.get_property_unit(prop, self.file) == length
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prop.Unit = length2
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assert subject.get_property_unit(prop, self.file) == length2
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prop.Unit = None
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prop.ListValues = []
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assert subject.get_property_unit(prop, self.file) is None
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def test_bounded_value(self):
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ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcProject")
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length = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="LENGTHUNIT", prefix="MILLI")
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length2 = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="LENGTHUNIT", prefix="CENTI")
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area = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="AREAUNIT")
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ifcopenshell.api.unit.assign_unit(self.file, units=[length, area])
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prop = self.file.createIfcPropertyBoundedValue(Name="Foo")
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assert subject.get_property_unit(prop, self.file) is None
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prop.UpperBoundValue = self.file.createIfcLengthMeasure(42.0)
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assert subject.get_property_unit(prop, self.file) == length
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prop.UpperBoundValue = None
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prop.LowerBoundValue = self.file.createIfcLengthMeasure(42.0)
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assert subject.get_property_unit(prop, self.file) == length
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prop.LowerBoundValue = None
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prop.SetPointValue = self.file.createIfcLengthMeasure(42.0)
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assert subject.get_property_unit(prop, self.file) == length
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prop.Unit = length2
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assert subject.get_property_unit(prop, self.file) == length2
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class TestConvert(test.bootstrap.IFC4):
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def test_run(self):
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assert subject.convert(1, None, "METRE", None, "METRE") == 1
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assert subject.convert(1, None, "METRE", "MILLI", "METRE") == 1000
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assert subject.convert(1000, "MILLI", "METRE", None, "METRE") == 1
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assert subject.convert(1, None, "SQUARE_METRE", None, "SQUARE_METRE") == 1
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assert subject.convert(1, None, "SQUARE_METRE", "MILLI", "SQUARE_METRE") == 1000000
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assert subject.convert(1, None, "CUBIC_METRE", "MILLI", "CUBIC_METRE") == 1000000000
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class TestCalculateUnitScale(test.bootstrap.IFC4):
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def test_prefix_and_conversion_based_units_are_considered(self):
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ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcProject")
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length = ifcopenshell.api.unit.add_conversion_based_unit(self.file, name="foot")
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length.ConversionFactor.UnitComponent.Prefix = "MILLI"
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ifcopenshell.api.unit.assign_unit(self.file, units=[length])
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assert subject.calculate_unit_scale(self.file) == 0.3048 * 0.001
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angle = ifcopenshell.api.unit.add_conversion_based_unit(self.file, name="degree")
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angle.ConversionFactor.UnitComponent.Prefix = "MILLI"
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ifcopenshell.api.unit.assign_unit(self.file, units=[angle])
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assert subject.calculate_unit_scale(self.file, "PLANEANGLEUNIT") == pi / 180 * 0.001
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def test_prefix_is_raised_to_the_length_exponent_for_area_and_volume(self):
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# A prefixed square/cubic metre is (prefix-metre) squared/cubed:
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# DECI SQUARE_METRE = dm2 = 1e-2 m2, DECI CUBIC_METRE = dm3 (litre) = 1e-3 m3.
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# https://github.com/IfcOpenShell/IfcOpenShell/issues/9278
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ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcProject")
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area = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="AREAUNIT")
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area.Prefix = "DECI"
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volume = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="VOLUMEUNIT")
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volume.Prefix = "DECI"
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ifcopenshell.api.unit.assign_unit(self.file, units=[area, volume])
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assert subject.calculate_unit_scale(self.file, "AREAUNIT") == pytest.approx(0.1**2)
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assert subject.calculate_unit_scale(self.file, "VOLUMEUNIT") == pytest.approx(0.1**3)
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def test_prefix_stays_linear_for_units_that_are_not_a_pure_power_of_length(self):
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# For derived and non-length SI units the prefix scales the unit itself:
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# KILO PASCAL = 1e3 Pa, KILO GRAM = 1e3 g.
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ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcProject")
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pressure = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="PRESSUREUNIT")
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pressure.Prefix = "KILO"
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mass = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="MASSUNIT")
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mass.Prefix = "KILO"
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ifcopenshell.api.unit.assign_unit(self.file, units=[pressure, mass])
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assert subject.calculate_unit_scale(self.file, "PRESSUREUNIT") == pytest.approx(1000)
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assert subject.calculate_unit_scale(self.file, "MASSUNIT") == pytest.approx(1000)
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class TestCalculateUnitScaleOnLinkedFile(test.bootstrap.IFC4):
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def test_run(self):
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# Regression test: IfcSIUnit.Dimensions is a schema-*derived*
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# attribute that isn't computed for SQLite-linked files (used for
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# Bonsai's "linked project" large-model workflow), so it returns None
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# there instead of an IfcDimensionalExponents entity. calculate_unit_scale()
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# used to access unit.Dimensions.LengthExponent unconditionally for
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# every IfcSIUnit, which crashed project loading for any linked file.
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# See the PR discussion for a standalone reproduction script.
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ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcProject")
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length = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="LENGTHUNIT")
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ifcopenshell.api.unit.assign_unit(self.file, units=[length])
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patcher = Ifc2Sql.Patcher(self.file, sql_type="SQLite")
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patcher.patch()
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tmp_file = Path(tempfile.mkstemp(suffix=".ifcsqlite")[1])
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ifcpatch.write(patcher.get_output(), tmp_file)
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try:
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linked_file = ifcopenshell.open(str(tmp_file))
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assert linked_file.by_type("IfcSIUnit")[0].Dimensions is None
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assert subject.calculate_unit_scale(linked_file, "LENGTHUNIT") == 1.0
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finally:
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if isinstance(linked_file, ifcopenshell.sqlite):
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linked_file.db.close()
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tmp_file.unlink(missing_ok=True)
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class TestFormatLength(test.bootstrap.IFC4):
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def test_run(self):
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assert subject.format_length(1, 1, decimal_places=0, unit_system="metric") == "1"
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assert subject.format_length(1, 1, decimal_places=2, unit_system="metric") == "1.00"
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assert subject.format_length(3, 5, decimal_places=2, unit_system="metric") == "5.00"
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assert subject.format_length(3.123, 0.01, decimal_places=2, unit_system="metric") == "3.12"
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assert subject.format_length(3, 1, unit_system="imperial", input_unit="foot") == "3'"
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assert subject.format_length(3.5, 1, unit_system="imperial", input_unit="foot") == "3' - 6\""
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assert subject.format_length(3.123, 1, unit_system="imperial", input_unit="foot") == "3' - 1\""
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assert subject.format_length(3.123, 2, unit_system="imperial", input_unit="foot") == "3' - 1 1/2\""
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assert subject.format_length(3.123, 4, unit_system="imperial", input_unit="foot") == "3' - 1 1/2\""
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assert subject.format_length(3.123, 32, unit_system="imperial", input_unit="foot") == "3' - 1 15/32\""
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assert subject.format_length(24, 1, unit_system="imperial", input_unit="inch") == "2'"
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assert subject.format_length(25.23, 1, unit_system="imperial", input_unit="inch") == "2' - 1\""
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assert subject.format_length(25.23, 4, unit_system="imperial", input_unit="inch") == "2' - 1 1/4\""
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assert subject.format_length(3, 1, unit_system="imperial", input_unit="foot", output_unit="inch") == '36"'
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assert subject.format_length(3.5, 1, unit_system="imperial", input_unit="foot", output_unit="inch") == '42"'
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assert subject.format_length(3.123, 1, unit_system="imperial", input_unit="foot", output_unit="inch") == '37"'
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assert (
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subject.format_length(3.123, 2, unit_system="imperial", input_unit="foot", output_unit="inch") == '37 1/2"'
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)
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assert (
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subject.format_length(3.123, 4, unit_system="imperial", input_unit="foot", output_unit="inch") == '37 1/2"'
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)
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assert (
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subject.format_length(3.123, 32, unit_system="imperial", input_unit="foot", output_unit="inch")
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== '37 15/32"'
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)
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assert subject.format_length(24, 1, unit_system="imperial", input_unit="inch", output_unit="inch") == '24"'
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assert subject.format_length(25.23, 1, unit_system="imperial", input_unit="inch", output_unit="inch") == '25"'
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assert (
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subject.format_length(25.23, 4, unit_system="imperial", input_unit="inch", output_unit="inch") == '25 1/4"'
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)
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class TestIsAttrType(test.bootstrap.IFC4):
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def test_run(self):
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schema = ifcopenshell.schema_by_name("IFC4")
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declaration = schema.declaration_by_name("IfcPropertySingleValue").as_entity()
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assert declaration
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nominal_value = declaration.attribute_by_index(2).type_of_attribute()
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assert subject.is_attr_type(nominal_value, "IfcValue")
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assert subject.is_attr_type(nominal_value, "IfcLengthMeasure")
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assert not subject.is_attr_type(nominal_value, "IfcLengthMeasure", include_select_types=False)
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class TestConvertFileLengthUnits(test.bootstrap.IFC2X3):
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def test_run(self):
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ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcProject")
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unit = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="LENGTHUNIT", prefix="MILLI")
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ifcopenshell.api.unit.assign_unit(self.file, units=[unit])
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output = subject.convert_file_length_units(self.file, target_units="METER")
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# there was some renumbering bug in the rocksdb rewrite this statement is to test for that
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assert max(i.id() for i in output) == len(output.wrapped_data.entity_names()) + 1
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assert subject.get_full_unit_name(subject.get_project_unit(output, "LENGTHUNIT")) == "METRE"
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def test_precision_conversion(self):
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# Regression test for #6127: IfcGeometricRepresentationContext.Precision
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# is typed IfcReal but interpreted in the project length unit, so it must
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# be scaled along with the length measures.
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ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcProject")
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unit = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="LENGTHUNIT", prefix="MILLI")
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ifcopenshell.api.unit.assign_unit(self.file, units=[unit])
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context = ifcopenshell.api.context.add_context(self.file, context_type="Model")
|
|
context.Precision = 0.01
|
|
# Subcontexts derive Precision from the parent and must be left alone.
|
|
ifcopenshell.api.context.add_context(
|
|
self.file, context_type="Model", context_identifier="Body", target_view="MODEL_VIEW", parent=context
|
|
)
|
|
output = subject.convert_file_length_units(self.file, target_units="METER")
|
|
new_context = output.by_type("IfcGeometricRepresentationContext", include_subtypes=False)[0]
|
|
assert new_context.Precision == pytest.approx(0.00001)
|
|
|
|
def test_attribute_conversion(self):
|
|
ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcProject")
|
|
unit = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="LENGTHUNIT", prefix="MILLI")
|
|
|
|
builder = ShapeBuilder(self.file)
|
|
rectangle = builder.rectangle((100, 100))
|
|
extrusion = builder.extrude(rectangle, 1000)
|
|
|
|
# IfcLengthMeasure entities.
|
|
product = ifcopenshell.api.root.create_entity(self.file, "IfcWall")
|
|
pset = ifcopenshell.api.pset.add_pset(self.file, product, "TestPset")
|
|
# Consider weird case when same entity is reused.
|
|
length_measure = self.file.create_entity("IfcLengthMeasure", 50.0)
|
|
enum_property = self.file.create_entity(
|
|
"IfcPropertyEnumeratedValue",
|
|
Name="Enum",
|
|
# Not entirely sure if there are real life cases when mixed typed entities used in the list
|
|
# but just to be safe.
|
|
EnumerationValues=[
|
|
length_measure,
|
|
self.file.create_entity("IfcLabel", "TEXT"),
|
|
self.file.create_entity("IfcLengthMeasure", 250.0),
|
|
length_measure,
|
|
],
|
|
)
|
|
ifcopenshell.api.pset.edit_pset(
|
|
self.file,
|
|
pset,
|
|
properties={
|
|
"Length": self.file.create_entity("IfcLengthMeasure", 25.0),
|
|
"Enum": enum_property,
|
|
},
|
|
)
|
|
|
|
ifcopenshell.api.unit.assign_unit(self.file, units=[unit])
|
|
output = subject.convert_file_length_units(self.file, target_units="METER")
|
|
assert subject.get_full_unit_name(subject.get_project_unit(output, "LENGTHUNIT")) == "METRE"
|
|
extrusion = output.by_type("IfcExtrudedAreaSolid")[0]
|
|
|
|
# Simple float attribute.
|
|
assert extrusion.Depth == 1
|
|
|
|
# List of floats in IFC2X3 and list of lists of floats in IFC4+.
|
|
rectangle = extrusion.SweptArea.OuterCurve
|
|
expected_points = [(0.0, 0.0), (0.1, 0.0), (0.1, 0.1), (0.0, 0.1)]
|
|
if self.file.schema == "IFC2X3":
|
|
# IfcPolyline.
|
|
points = [p.Coordinates for p in rectangle.Points]
|
|
expected_points += expected_points[:1]
|
|
else:
|
|
# IfcIndexedPolyCurve.
|
|
points = rectangle.Points.CoordList
|
|
assert np.allclose(points, expected_points)
|
|
|
|
# IfcLengthMeasure entities.
|
|
product = output.by_type("IfcWall")[0]
|
|
pset_data = ifcopenshell.util.element.get_pset(product, "TestPset")
|
|
assert pset_data["Length"] == 0.025
|
|
assert pset_data["Enum"] == [0.05, "TEXT", 0.25, 0.05]
|
|
|
|
def test_converting_map_conversion_if_there_is_no_map_unit(self):
|
|
ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcProject")
|
|
unit = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="LENGTHUNIT", prefix="MILLI")
|
|
ifcopenshell.api.context.add_context(self.file, "Model")
|
|
ifcopenshell.api.georeference.add_georeferencing(self.file)
|
|
ifcopenshell.api.georeference.edit_georeferencing(self.file, coordinate_operation={"Eastings": 10000})
|
|
ifcopenshell.api.unit.assign_unit(self.file, units=[unit])
|
|
output = subject.convert_file_length_units(self.file, target_units="METER")
|
|
assert subject.get_full_unit_name(subject.get_project_unit(output, "LENGTHUNIT")) == "METRE"
|
|
if self.file.schema == "IFC2X3":
|
|
parameters = ifcopenshell.util.geolocation.get_helmert_transformation_parameters(output)
|
|
assert parameters
|
|
assert parameters.e == 10
|
|
else:
|
|
assert output.by_type("IfcMapConversion")[0].Eastings == 10
|
|
|
|
def test_preserving_enh_if_there_is_a_map_unit(self):
|
|
ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcProject")
|
|
unit = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="LENGTHUNIT", prefix="MILLI")
|
|
meter = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="LENGTHUNIT")
|
|
ifcopenshell.api.context.add_context(self.file, "Model")
|
|
ifcopenshell.api.georeference.add_georeferencing(self.file)
|
|
map_unit = subject.get_full_unit_name(meter) if self.file.schema == "IFC2X3" else meter
|
|
ifcopenshell.api.georeference.edit_georeferencing(
|
|
self.file,
|
|
projected_crs={"MapUnit": map_unit},
|
|
coordinate_operation={"Eastings": 10, "Scale": 0.001},
|
|
)
|
|
ifcopenshell.api.unit.assign_unit(self.file, units=[unit])
|
|
output = subject.convert_file_length_units(self.file, target_units="METER")
|
|
assert subject.get_full_unit_name(subject.get_project_unit(output, "LENGTHUNIT")) == "METRE"
|
|
if self.file.schema == "IFC2X3":
|
|
parameters = ifcopenshell.util.geolocation.get_helmert_transformation_parameters(output)
|
|
assert parameters
|
|
assert parameters.e == 10
|
|
assert parameters.n == 0
|
|
assert parameters.scale == 1
|
|
crs = ifcopenshell.util.element.get_pset(output.by_type("IfcProject")[0], name="ePSet_ProjectedCRS")
|
|
assert crs["MapUnit"] == "METRE"
|
|
else:
|
|
map_conversion = output.by_type("IfcMapConversion")[0]
|
|
assert map_conversion.Eastings == 10
|
|
assert map_conversion.Northings == 0
|
|
assert map_conversion.Scale == 1
|
|
assert subject.get_full_unit_name(output.by_type("IfcProjectedCRS")[0].MapUnit) == "METRE"
|
|
|
|
def test_preserving_enh_if_there_is_a_map_unit_which_is_also_the_project_default(self):
|
|
ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcProject")
|
|
meter = ifcopenshell.api.unit.add_si_unit(self.file, unit_type="LENGTHUNIT")
|
|
ifcopenshell.api.context.add_context(self.file, "Model")
|
|
ifcopenshell.api.georeference.add_georeferencing(self.file)
|
|
map_unit = subject.get_full_unit_name(meter) if self.file.schema == "IFC2X3" else meter
|
|
ifcopenshell.api.georeference.edit_georeferencing(
|
|
self.file,
|
|
projected_crs={"MapUnit": map_unit},
|
|
coordinate_operation={"Eastings": 10, "Scale": 1},
|
|
)
|
|
ifcopenshell.api.unit.assign_unit(self.file, units=[meter])
|
|
output = subject.convert_file_length_units(self.file, target_units="MILLIMETER")
|
|
assert subject.get_full_unit_name(subject.get_project_unit(output, "LENGTHUNIT")) == "MILLIMETRE"
|
|
if self.file.schema == "IFC2X3":
|
|
parameters = ifcopenshell.util.geolocation.get_helmert_transformation_parameters(output)
|
|
assert parameters
|
|
assert parameters.e == 10
|
|
assert parameters.n == 0
|
|
assert parameters.scale == 1
|
|
crs = ifcopenshell.util.element.get_pset(output.by_type("IfcProject")[0], name="ePSet_ProjectedCRS")
|
|
assert crs["MapUnit"] == "METRE"
|
|
else:
|
|
map_conversion = output.by_type("IfcMapConversion")[0]
|
|
assert map_conversion.Eastings == 10
|
|
assert map_conversion.Northings == 0
|
|
assert map_conversion.Scale == 0.001
|
|
assert subject.get_full_unit_name(output.by_type("IfcProjectedCRS")[0].MapUnit) == "METRE"
|
|
|
|
unit_assignment = subject.get_unit_assignment(output)
|
|
assert unit_assignment
|
|
assert len(unit_assignment.Units) == 1
|
|
|
|
|
|
class TestConvertFileLengthUnitsIFC4(test.bootstrap.IFC4, TestConvertFileLengthUnits):
|
|
pass
|
|
|
|
|
|
class TestConvertFileLengthUnitsIFC4X3(test.bootstrap.IFC4X3, TestConvertFileLengthUnits):
|
|
pass
|