68 lines
2.9 KiB
Python
68 lines
2.9 KiB
Python
# IfcOpenShell - IFC toolkit and geometry engine
|
|
# Copyright (C) 2021 Dion Moult <dion@thinkmoult.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 ifcopenshell
|
|
import ifcopenshell.api.context
|
|
import ifcopenshell.api.geometry
|
|
import ifcopenshell.util.element
|
|
|
|
|
|
def remove_context(file: ifcopenshell.file, context: ifcopenshell.entity_instance) -> None:
|
|
"""Removes an IfcGeometricRepresentationContext
|
|
|
|
Any representation geometry that is assigned to the context is also
|
|
removed. If a context is removed, then any subcontexts are also removed.
|
|
|
|
:param context: The IfcGeometricRepresentationContext entity to remove
|
|
:return: None
|
|
|
|
Example:
|
|
|
|
.. code:: python
|
|
|
|
model = ifcopenshell.api.context.add_context(model, context_type="Model")
|
|
# Revit had a bug where they incorrectly called the body representation a "Facetation"
|
|
body = ifcopenshell.api.context.add_context(model,
|
|
context_type="Model", context_identifier="Facetation", target_view="MODEL_VIEW", parent=model
|
|
)
|
|
|
|
# Let's just get rid of it completely
|
|
ifcopenshell.api.context.remove_context(model, context=body)
|
|
"""
|
|
for subcontext in context.HasSubContexts:
|
|
ifcopenshell.api.context.remove_context(file, context=subcontext)
|
|
|
|
if getattr(context, "ParentContext", None):
|
|
new = context.ParentContext
|
|
for inverse in file.get_inverse(context):
|
|
if inverse.is_a("IfcCoordinateOperation"):
|
|
# Trick to make sure the coordinate operation is not referenced
|
|
# by a context so we can delete it safely
|
|
inverse.SourceCRS = inverse.TargetCRS
|
|
ifcopenshell.util.element.remove_deep2(file, inverse)
|
|
else:
|
|
ifcopenshell.util.element.replace_attribute(inverse, context, new)
|
|
file.remove(context)
|
|
else:
|
|
representations_in_context = context.RepresentationsInContext
|
|
file.remove(context)
|
|
for rep in representations_in_context:
|
|
for element in ifcopenshell.util.element.get_elements_by_representation(file, rep):
|
|
ifcopenshell.api.geometry.unassign_representation(file, product=element, representation=rep)
|
|
ifcopenshell.api.geometry.remove_representation(file, representation=rep)
|