Alignment API updates to support new patch recipes

2026-08-09 17:31:45 +00:00 · 2025-07-20 15:32:26 -07:00
parent 3e0ef46a37
commit 3ef7f1c141
19 changed files with 481 additions and 160 deletions
@@ -0,0 +1,68 @@
+# IfcOpenShell - IFC toolkit and geometry engine
+# Copyright (C) 2025 Thomas Krijnen <thomas@aecgeeks.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 pytest
+import ifcopenshell.api.alignment
+
+
+def test_update_fallback_position():
+    file = ifcopenshell.file(schema="IFC4X3")
+    project = file.createIfcProject(GlobalId=ifcopenshell.guid.new(), Name="Test")
+    length = ifcopenshell.api.unit.add_conversion_based_unit(file, name="foot")
+    ifcopenshell.api.unit.assign_unit(file, units=[length])
+    geometric_representation_context = ifcopenshell.api.context.add_context(file, context_type="Model")
+    axis_model_representation_subcontext = ifcopenshell.api.context.add_context(
+        file,
+        context_type="Model",
+        context_identifier="Axis",
+        target_view="MODEL_VIEW",
+        parent=geometric_representation_context,
+    )
+
+    coordinates = [(500.0, 2500.0), (3340.0, 660.0), (4340.0, 5000.0), (7600.0, 4560.0), (8480.0, 2010.0)]
+    radii = [(1000.0), (1250.0), (950.0)]
+    vpoints = [(0.0, 100.0), (2000.0, 135.0), (5000.0, 105.0), (7400.0, 153.0), (9800.0, 105.0), (12800.0, 90.0)]
+    lengths = [(1600.0), (1200.0), (2000.0), (800.0)]
+
+    alignment = ifcopenshell.api.alignment.create_by_pi_method(
+        file, "TestAlignment", coordinates, radii, vpoints, lengths
+    )
+
+    basis_curve = ifcopenshell.api.alignment.get_basis_curve(alignment)
+    pde = file.createIfcPointByDistanceExpression(
+        DistanceAlong = file.createIfcLengthMeasure(4500.),
+        OffsetLateral = 20.0,
+        BasisCurve = basis_curve
+    )
+
+    placement = file.createIfcAxis2PlacementLinear(
+        Location = pde,
+    )
+
+    lp = file.createIfcLinearPlacement(RelativePlacement = placement)
+
+    assert lp.CartesianPosition == None
+
+    ifcopenshell.api.alignment.update_fallback_position(file,lp)
+
+    assert lp.CartesianPosition != None
+    assert lp.CartesianPosition.Location.Coordinates == pytest.approx((3781.0625905626425,2663.2859940077856,0.0))
+    assert lp.CartesianPosition.RefDirection.DirectionRatios == pytest.approx((0.22453152656315067, 0.9744668252840736, 0.0))
+    assert lp.CartesianPosition.Axis.DirectionRatios == pytest.approx((0.0, 0.0, 1.0))
+
+test_update_fallback_position()