Adds IfcPolyline representation for alignment. Also some general cleanup

src/ifcopenshell-python/test/api/alignment/test_create.py

@@ -22,7 +22,7 @@ import ifcopenshell.api.context
 import ifcopenshell.api.unit
 
 
-def test_create_alignment():
+def test_create():
     file = ifcopenshell.file(schema="IFC4X3_ADD2")
     project = file.createIfcProject(GlobalId=ifcopenshell.guid.new(), Name="Test")
     length = ifcopenshell.api.unit.add_si_unit(file, unit_type="LENGTHUNIT")
@@ -69,3 +69,4 @@ def test_create_alignment():
                 assert ifcopenshell.api.alignment.has_zero_length_segment(
                     a
                 )  # there is a check in this function for the geometry curve
+

src/ifcopenshell-python/test/api/alignment/test_create_as_polyline.py

@@ -0,0 +1,50 @@
+# 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
+import ifcopenshell.api.unit
+
+
+def test_create_as_polyline():
+    file = ifcopenshell.file(schema="IFC4X3_ADD2")
+    project = file.createIfcProject(GlobalId=ifcopenshell.guid.new(), Name="Test")
+    length = ifcopenshell.api.unit.add_si_unit(file, unit_type="LENGTHUNIT")
+    ifcopenshell.api.unit.assign_unit(file, units=[length])
+
+    points = [
+    file.createIfcCartesianPoint((945.2, 583.6,  50.0)),
+    file.createIfcCartesianPoint((756.3, 871.7,  66.2)),
+    file.createIfcCartesianPoint(( 567.4, 1159.7,   78.5)),
+    file.createIfcCartesianPoint(( 379.4, 1448.3,    86.8)),
+    file.createIfcCartesianPoint(( 201.7, 1743.3,   91.1)),
+    file.createIfcCartesianPoint((  36.8,  2045.7,   91.3)),
+    file.createIfcCartesianPoint((-118.9, 2353.0,   87.5)),
+    file.createIfcCartesianPoint((-274.3, 2660.4,   79.7)),
+    file.createIfcCartesianPoint((-429.6, 2967.8,   68.3)),
+    file.createIfcCartesianPoint((-585.0, 3275.2,   56.2 )),
+            ]
+
+
+    alignment = ifcopenshell.api.alignment.create_as_polyline(file,"A1",points)
+    curve = ifcopenshell.api.alignment.get_curve(alignment)
+    assert curve.is_a("IfcPolyline")
+    assert len(curve.Points) == 10
+
+
+test_create_as_polyline()

src/ifcopenshell-python/test/api/alignment/test_create_by_pi_method.py

@@ -22,7 +22,7 @@ import ifcopenshell.api.context
 import ifcopenshell.api.unit
 
 
-def test_create_alignment_pi_method():
+def test_create_by_pi_method():
     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")
@@ -64,4 +64,4 @@ def test_create_alignment_pi_method():
     )  # segments in vertical layout
 
 
-test_create_alignment_pi_method()
+test_create_by_pi_method()