IfcOpenShell/src/ifcopenshell-python/test/api/geometry/test_assign_representation.py

import test.bootstrap
import ifcopenshell.api


class TestAssignRepresentation(test.bootstrap.IFC4):
    def test_assigning_to_a_product(self):
        wall = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWall")
        rep = self.file.createIfcShapeRepresentation()
        ifcopenshell.api.run("geometry.assign_representation", self.file, product=wall, representation=rep)
        assert wall.Representation.Representations == (rep,)

    def test_assigning_to_a_product_with_existing_representations(self):
        wall = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWall")
        rep = self.file.createIfcShapeRepresentation()
        rep2 = self.file.createIfcShapeRepresentation()
        ifcopenshell.api.run("geometry.assign_representation", self.file, product=wall, representation=rep)
        ifcopenshell.api.run("geometry.assign_representation", self.file, product=wall, representation=rep2)
        assert wall.Representation.Representations == (rep, rep2)

    def test_assigning_to_a_type_product(self):
        walltype = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWallType")
        rep = self.file.createIfcShapeRepresentation()
        rep2 = self.file.createIfcShapeRepresentation()
        ifcopenshell.api.run("geometry.assign_representation", self.file, product=walltype, representation=rep)
        ifcopenshell.api.run("geometry.assign_representation", self.file, product=walltype, representation=rep2)
        assert walltype.RepresentationMaps[0].MappedRepresentation == rep
        assert walltype.RepresentationMaps[1].MappedRepresentation == rep2

    def test_assigning_to_a_type_will_map_representations_to_instances(self):
        wall = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWall")
        walltype = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWallType")
        ifcopenshell.api.run("type.assign_type", self.file, related_object=wall, relating_type=walltype)
        context = self.file.createIfcGeometricRepresentationContext()
        rep = self.file.createIfcShapeRepresentation(ContextOfItems=context)
        rep2 = self.file.createIfcShapeRepresentation(ContextOfItems=context)
        ifcopenshell.api.run("geometry.assign_representation", self.file, product=walltype, representation=rep)
        ifcopenshell.api.run("geometry.assign_representation", self.file, product=walltype, representation=rep2)
        assert wall.Representation.Representations[0].RepresentationType == "MappedRepresentation"
        assert wall.Representation.Representations[0].Items[0].MappingSource.MappedRepresentation == rep
        assert wall.Representation.Representations[0].Items[0].MappingSource == walltype.RepresentationMaps[0]
        assert wall.Representation.Representations[1].RepresentationType == "MappedRepresentation"
        assert wall.Representation.Representations[1].Items[0].MappingSource.MappedRepresentation == rep2
        assert wall.Representation.Representations[1].Items[0].MappingSource == walltype.RepresentationMaps[1]

    def test_assigning_to_an_instance_with_a_geometric_type_adds_it_to_both_the_instance_and_type(self):
        context = self.file.createIfcGeometricRepresentationContext()
        rep = self.file.createIfcShapeRepresentation(ContextOfItems=context)
        rep2 = self.file.createIfcShapeRepresentation(ContextOfItems=context)

        walltype = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWallType")
        ifcopenshell.api.run("geometry.assign_representation", self.file, product=walltype, representation=rep)

        wall = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWall")
        ifcopenshell.api.run("type.assign_type", self.file, related_object=wall, relating_type=walltype)

        ifcopenshell.api.run("geometry.assign_representation", self.file, product=wall, representation=rep2)
        assert wall.Representation.Representations[0].RepresentationType == "MappedRepresentation"
        assert wall.Representation.Representations[0].Items[0].MappingSource.MappedRepresentation == rep
        assert walltype.RepresentationMaps[0].MappedRepresentation == rep
        assert wall.Representation.Representations[1].RepresentationType == "MappedRepresentation"
        assert wall.Representation.Representations[1].Items[0].MappingSource.MappedRepresentation == rep2
        assert walltype.RepresentationMaps[1].MappedRepresentation == rep2

    def test_assigning_to_an_instance_with_a_nongeometric_type_only_adds_it_to_the_instance(self):
        context = self.file.createIfcGeometricRepresentationContext()
        rep = self.file.createIfcShapeRepresentation(ContextOfItems=context)
        walltype = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWallType")
        wall = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWall")
        ifcopenshell.api.run("type.assign_type", self.file, related_object=wall, relating_type=walltype)
        ifcopenshell.api.run("geometry.assign_representation", self.file, product=wall, representation=rep)
        assert wall.Representation.Representations[0].RepresentationType != "MappedRepresentation"
        assert wall.Representation.Representations[0] == rep
        assert not walltype.RepresentationMaps