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IfcOpenShell/src/ifcopenshell-python/test/geom/geometry_tests.py
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2024-12-13 19:07:57 +05:00

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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.geom
import ifcopenshell.util.shape
import test.bootstrap
import numpy as np
from ifcopenshell.util.shape_builder import ShapeBuilder, V
class TestCreatingShapesIfcCurve(test.bootstrap.IFC4):
def test_create_IfcCirle(self):
builder = ShapeBuilder(self.file)
radius = 1.0
item = builder.circle(radius=radius)
settings = ifcopenshell.geom.settings()
shape = ifcopenshell.geom.create_shape(settings, item)
verts = ifcopenshell.util.shape.get_vertices(shape)
assert len(verts) == 72
distances = np.linalg.norm(verts, axis=1)
assert np.allclose(distances, np.full(len(verts), radius))
def test_create_IfcEllipse(self):
builder = ShapeBuilder(self.file)
item = self.file.create_entity(
"IfcEllipse", Position=builder.create_axis2_placement_2d(), SemiAxis1=1.0, SemiAxis2=0.5
)
settings = ifcopenshell.geom.settings()
shape = ifcopenshell.geom.create_shape(settings, item)
assert shape.verts
def test_create_IfcLine(self):
item = self.file.create_entity(
"IfcLine",
Pnt=self.file.create_entity("IfcCartesianPoint", (0.0, 0.0)),
Dir=self.file.create_entity(
"IfcVector", Orientation=self.file.create_entity("IfcDirection", (1.0, 0.0)), Magnitude=1.0
),
)
settings = ifcopenshell.geom.settings()
shape = ifcopenshell.geom.create_shape(settings, item)
assert shape.verts
def test_create_IfcBSplineCurve(self):
points = [
(6.4062, 19.4575766757, 13.352536093),
(5.8477429418, 19.9080686796, 14.1328111323),
(3.6139147091, 20.3256826827, 14.8561398035),
(1.1790137971e-05, 20.2853841412, 14.7863406821),
(1.1790137971e-05, 18.5102818197, 11.7117732726),
(1.16078600148, 18.0665062393, 10.9431314203),
]
item = self.file.create_entity(
"IfcBSplineCurveWithKnots",
Degree=3,
ControlPointsList=[self.file.create_entity("IfcCartesianPoint", p) for p in points],
KnotMultiplicities=(4, 1, 1, 4),
Knots=(0.0, 1 / 3, 2 / 3, 1.0),
)
settings = ifcopenshell.geom.settings()
shape = ifcopenshell.geom.create_shape(settings, item)
assert shape.verts