mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-10 01:41:57 +00:00
Andrej
87 lines
3.7 KiB
Python
87 lines
3.7 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 numpy as np
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import ifcopenshell
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import ifcopenshell.api.context
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import ifcopenshell.api.geometry
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import ifcopenshell.api.profile
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import ifcopenshell.api.root
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import ifcopenshell.api.unit
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import ifcopenshell.geom
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import ifcopenshell.geom
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import ifcopenshell.util.unit
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import test.bootstrap
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from ifcopenshell.util.shape_builder import ShapeBuilder
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class TestSettings(test.bootstrap.IFC4):
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def test_convert_back_units(self):
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settings = ifcopenshell.geom.settings()
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settings.set("convert-back-units", True)
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ifc_file = ifcopenshell.file()
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builder = ShapeBuilder(ifc_file)
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ifcopenshell.api.root.create_entity(ifc_file, "IfcProject")
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unit = ifcopenshell.api.unit.add_si_unit(ifc_file, unit_type="LENGTHUNIT", prefix="MILLI")
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ifcopenshell.api.unit.assign_unit(ifc_file, units=[unit])
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model = ifcopenshell.api.context.add_context(ifc_file, context_type="Model")
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# Placement.
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element = ifcopenshell.api.root.create_entity(ifc_file, "IfcWall")
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matrix = np.eye(4)
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matrix[0, 3] = 10
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placement = ifcopenshell.api.geometry.edit_object_placement(ifc_file, element, matrix)
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transform = ifcopenshell.geom.create_shape(settings, placement)
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assert transform.matrix == (1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0, 10000.0, 0.0, 0.0, 1.0)
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# Profile.
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profile = ifcopenshell.api.profile.add_parameterized_profile(ifc_file, "IfcRectangleProfileDef")
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ifcopenshell.api.profile.edit_profile(ifc_file, profile, {"XDim": 100, "YDim": 100})
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shape = ifcopenshell.geom.create_shape(settings, profile)
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assert shape.verts == (-50.0, -50.0, 0.0, 50.0, -50.0, 0.0, 50.0, 50.0, 0.0, -50.0, 50.0, 0.0)
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# Representation item.
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extrusion = builder.extrude(profile, 1000)
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shape = ifcopenshell.geom.create_shape(settings, extrusion)
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# fmt: off
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extrusion_verts = (
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-50.0, -50.0, 0.0, -50.0, -50.0, 1000.0, 50.0, -50.0, 1000.0, 50.0, -50.0, 0.0,
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50.0, 50.0, 1000.0, 50.0, 50.0, 0.0, -50.0, 50.0, 1000.0, -50.0, 50.0, 0.0
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)
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# fmt: on
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assert shape.verts == extrusion_verts
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# Representation.
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representation = builder.get_representation(model, [extrusion])
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shape = ifcopenshell.geom.create_shape(settings, representation)
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assert shape.verts == extrusion_verts
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# Element.
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ifcopenshell.api.geometry.assign_representation(ifc_file, element, representation)
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shape = ifcopenshell.geom.create_shape(settings, element)
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assert shape.geometry.verts == extrusion_verts
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# Element with disabled conversion.
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settings.set("convert-back-units", False)
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shape = ifcopenshell.geom.create_shape(settings, element)
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si_conversion = ifcopenshell.util.unit.calculate_unit_scale(ifc_file)
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converted_verts = np.array(extrusion_verts) * si_conversion
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assert np.allclose(shape.geometry.verts, converted_verts)
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