Adds object placement to stationing referent.

src/ifcopenshell-python/ifcopenshell/api/alignment/add_stationing_to_alignment.py

@@ -23,7 +23,7 @@ import ifcopenshell.guid
 from ifcopenshell import entity_instance
 
 
-def add_stationing_to_alignment(file: ifcopenshell.file, alignment: entity_instance, start_station: float) -> None:
+def add_stationing_to_alignment(file: ifcopenshell.file, alignment: entity_instance, start_station: float, plus_seperator=3,accuracy=3) -> None:
     """
     Adds stationing to an alignment by creating an IfcReferent with the Pset_Stationing property set to establish the stationing at the start of the alignment.
     Note - this function assumes the stationing has not been previously defined
@@ -43,20 +43,20 @@ def add_stationing_to_alignment(file: ifcopenshell.file, alignment: entity_insta
     # the example is a circle. a better way would be to pass a representation into the function
     object_placement = None
     representation = None
-    # basis_curve = ifcopenshell.api.alignment.get_basis_curve(alignment)
-    # if basis_curve:
-    #    object_placement = file.createIfcLinearPlacement(
-    #        RelativePlacement=file.createIfcAxis2PlacementLinear(
-    #            Location=file.createIfcPointByDistanceExpression(
-    #                DistanceAlong=file.createIfcLengthMeasure(0.0),
-    #                OffsetLateral=None,
-    #                OffsetVertical=None,
-    #                OffsetLongitudinal=None,
-    #                BasisCurve=basis_curve,
-    #            )
-    #        ),
-    #        CartesianPosition=None,
-    #    )
+    basis_curve = ifcopenshell.api.alignment.get_basis_curve(alignment)
+    if basis_curve:
+       object_placement = file.createIfcLinearPlacement(
+           RelativePlacement=file.createIfcAxis2PlacementLinear(
+               Location=file.createIfcPointByDistanceExpression(
+                   DistanceAlong=file.createIfcLengthMeasure(0.0),
+                   OffsetLateral=None,
+                   OffsetVertical=None,
+                   OffsetLongitudinal=None,
+                   BasisCurve=basis_curve,
+               )
+           ),
+           CartesianPosition=None,
+       )
     #    representation = file.create_entity(
     #        name="IfcCircle",
     #        position=file.createIfcAxis2Placement2D(Location=file.createIfcCartesianPoint(Coordinates=(0.0, 0.0)),
@@ -67,7 +67,7 @@ def add_stationing_to_alignment(file: ifcopenshell.file, alignment: entity_insta
     start_referent = file.createIfcReferent(
         GlobalId=ifcopenshell.guid.new(),
         OwnerHistory=None,
-        Name=ifcopenshell.util.stationing.station_as_string(start_station),
+        Name=ifcopenshell.util.stationing.station_as_string(start_station,plus_seperator,accuracy),
         Description=None,
         ObjectType=None,
         ObjectPlacement=object_placement,

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

@@ -41,6 +41,7 @@ def test_add_stationing_to_alignment():
     alignment = ifcopenshell.api.alignment.create_alignment_by_pi_method(
         file, "TestAlignment", coordinates, radii, vpoints, lengths
     )
+    ifcopenshell.api.alignment.create_geometric_representation(file, alignment)
 
     ifcopenshell.api.alignment.add_stationing_to_alignment(file, alignment, 2000.0)
 
@@ -54,3 +55,4 @@ def test_add_stationing_to_alignment():
                     ifcopenshell.util.element.get_pset(element=referent, name="Pset_Stationing", prop="Station")
                     == 2000.0
                 )
+                assert(referent.ObjectPlacement != None)