Method parse_connection

src/ifc2ca/ifc2ca.py:421–456

(self, connection: ios.entity_instance)

        return data

    def parse_connection(self, connection: ios.entity_instance):
        data = {k: v for k, v in connection.get_info().items() if k in self.connection_keys}

        data["ObjectType"] = ifcopenshell.util.element.get_predefined_type(connection)
        data["ref_id"] = self.get_ref_id(connection)
        representation = ifcopenshell.util.representation.get_representation(connection, self.get_context())
        repr_item = representation.Items[0]
        data["geometry_type"] = representation.RepresentationType
        data["geometry"] = self.parse_representation(representation)

        if connection.is_a("IfcStructuralPointConnection"):
            if connection.ConditionCoordinateSystem is not None:
                placement = ifcopenshell.util.placement.get_axis2placement(connection.ConditionCoordinateSystem)
            else:
                placement = np.eye(4)
                for i, v in enumerate(placement[:3]):
                    v[3] = data["geometry"][i]

        if connection.is_a("IfcStructuralCurveConnection"):
            placement = ifcopenshell.util.placement.a2p(
                data["geometry"][0],
                connection.Axis.DirectionRatios,
                [c2 - c1 for c1, c2 in zip(data["geometry"][0], data["geometry"][1])],
            )

        elif connection.is_a("IfcStructuralSurfaceConnection"):
            placement = ifcopenshell.util.placement.get_axis2placement(repr_item.FaceSurface.Position)

        origin, orientation = self.parse_transformation_matrix(placement)
        data["origin"] = origin
        data["orientation"] = orientation
        if connection.is_a("IfcStructuralSurfaceConnection") and not repr_item.SameSense:
            data["orientation"] *= -1

        data["appliedCondition"] = self.parse_applied_condition(connection.AppliedCondition, data["geometry_type"])
        return data

    def parse_element_connections(self, element: dict, connections: list[dict]):
        ifc_element = self.file.by_id(element["id"])