mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-20 04:04:00 +00:00
Andrej
428 lines
19 KiB
Python
428 lines
19 KiB
Python
# Bonsai - OpenBIM Blender Add-on
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# Copyright (C) 2020, 2021 Dion Moult <dion@thinkmoult.com>
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#
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# This file is part of Bonsai.
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#
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# Bonsai is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Bonsai is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Bonsai. If not, see <http://www.gnu.org/licenses/>.
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import bpy
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import ifcopenshell
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import ifcopenshell.api
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import ifcopenshell.api.context
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import ifcopenshell.api.geometry
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import ifcopenshell.api.material
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import ifcopenshell.api.owner
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import ifcopenshell.api.owner.settings
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import ifcopenshell.api.project
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import ifcopenshell.api.pset
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import ifcopenshell.api.root
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import ifcopenshell.api.style
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import ifcopenshell.api.unit
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import ifcopenshell.util.schema
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import ifcopenshell.util.shape_builder
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import bonsai.tool as tool
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from pathlib import Path
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def sync_guids(target_file: ifcopenshell.file, source_file: ifcopenshell.file) -> None:
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def sync_guid(element: ifcopenshell.entity_instance) -> None:
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"""Try to sync `element` guid with `source_file`.
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Sync is assigning guid based on the first element from `source_file` that has a matching type and name.
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"""
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# In IFC2X3 IfcProject is not IfcContext.
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if element.is_a("IfcTypeProduct") or element.is_a("IfcContext") or element.is_a("IfcProject"):
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assert element.Name, element
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elements = source_file.by_type(element.is_a(), False)
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for element_ in elements:
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if element.Name == element_.Name:
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element.GlobalId = element_.GlobalId
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return
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print(
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f"WARNING! Couldn't find a matching element in the GUID source to sync guid for '{element.Name}' ({element})."
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)
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def sync_pset(pset: ifcopenshell.entity_instance) -> None:
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element_types = pset.DefinesType
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assert len(element_types) == 1
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element_type: ifcopenshell.entity_instance = element_types[0]
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try:
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element_type_ = source_file.by_guid(element_type.GlobalId)
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except RuntimeError:
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# New type with pset was added.
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print(f"WARNING! Couldn't find a matching pset for '{pset.Name}' ({pset}).")
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return
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assert len(element_type_.HasPropertySets) == 1
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pset_ = element_type_.HasPropertySets[0]
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assert pset.Name == pset_.Name
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pset.GlobalId = pset_.GlobalId
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def sync_rel(rel: ifcopenshell.entity_instance) -> None:
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if rel.is_a("IfcRelAssociatesMaterial"):
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related_objects = rel.RelatedObjects
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assert len(related_objects) == 1
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related_object = related_objects[0]
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try:
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related_object_ = source_file.by_guid(related_object.GlobalId)
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except RuntimeError:
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# New type with material was added.
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print(f"WARNING! Couldn't find a matching rel for '{rel}'.")
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return
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rel_ = next(r for r in related_object_.HasAssociations if r.is_a("IfcRelAssociatesMaterial"))
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assert rel_
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rel.GlobalId = rel_.GlobalId
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elif rel.is_a("IfcRelDeclares"):
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context = rel.RelatingContext
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try:
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context_ = source_file.by_guid(context.GlobalId)
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except RuntimeError:
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# New context was added.
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print(f"WARNING! Couldn't find a matching context for '{context}'.")
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return
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rel_ = context_.Declares[0]
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rel.GlobalId = rel_.GlobalId
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else:
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print(f"WARNING! Couldn't find a matching element in the GUID source to sync guid for '{rel}'.")
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roots = target_file.by_type("IfcRoot")
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psets: list[ifcopenshell.entity_instance] = []
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rels: list[ifcopenshell.entity_instance] = []
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for element in roots:
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if element.is_a("IfcPropertySet"):
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psets.append(element)
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continue
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elif element.is_a("IfcRelationship"):
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rels.append(element)
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continue
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sync_guid(element)
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for rel in rels:
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sync_rel(rel)
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for pset in psets:
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sync_pset(pset)
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class LibraryGenerator:
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output_filename = "Demo Library.ifc"
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guid_source: ifcopenshell.file
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"""Guid sync is needed to avoid unnecessary diffs
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and to avoid `append_asset` from identifying existing elements and as new ones.
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"""
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def generate(self, schema: ifcopenshell.util.schema.IFC_SCHEMA) -> None:
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assert bpy.context.blend_data
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opened_blend_file = Path(bpy.context.blend_data.filepath)
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assert (
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opened_blend_file.name == "demo-library.blend"
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), "This script must be run from the demo-library.blend file as it's using Blender objects to create representations."
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libraries_path = opened_blend_file.parent.parent / "bonsai" / "bim" / "data" / "libraries"
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guid_source_filepath = libraries_path / f"{schema} {self.output_filename}"
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self.guid_source = ifcopenshell.open(guid_source_filepath)
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ifcopenshell.api.pre_listeners = {}
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ifcopenshell.api.post_listeners = {}
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self.file = ifcopenshell.api.project.create_file(schema)
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self.builder = ifcopenshell.util.shape_builder.ShapeBuilder(self.file)
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if schema == "IFC2X3":
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ifcopenshell.api.owner.settings.factory_reset()
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person = ifcopenshell.api.owner.add_person(self.file)
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organization = ifcopenshell.api.owner.add_organisation(self.file)
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user = ifcopenshell.api.owner.add_person_and_organisation(
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self.file, person=person, organisation=organization
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)
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application = ifcopenshell.api.owner.add_application(
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self.file, application_full_name="Bonsai", application_identifier="Bonsai"
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)
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# Override Bonsai methods for duration of the script.
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ifcopenshell.api.owner.settings.get_user = lambda x: user
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ifcopenshell.api.owner.settings.get_application = lambda x: application
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# Basic project setup.
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self.project = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcProject", name="Bonsai Demo")
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if schema != "IFC2X3":
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self.library = ifcopenshell.api.root.create_entity(
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self.file, ifc_class="IfcProjectLibrary", name="Bonsai Demo Library"
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)
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ifcopenshell.api.project.assign_declaration(
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self.file, definitions=[self.library], relating_context=self.project
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)
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ifcopenshell.api.unit.assign_unit(self.file, length={"is_metric": True, "raw": "METERS"})
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model = ifcopenshell.api.context.add_context(self.file, context_type="Model")
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plan = ifcopenshell.api.context.add_context(self.file, context_type="Plan")
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self.representations = {
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"model_body": ifcopenshell.api.context.add_context(
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self.file,
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context_type="Model",
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context_identifier="Body",
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target_view="MODEL_VIEW",
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parent=model,
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),
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"plan_body": ifcopenshell.api.context.add_context(
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self.file,
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context_type="Plan",
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context_identifier="Body",
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target_view="PLAN_VIEW",
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parent=plan,
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),
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"model_annotation": ifcopenshell.api.context.add_context(
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self.file,
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context_type="Model",
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context_identifier="Annotation",
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target_view="MODEL_VIEW",
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parent=plan,
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),
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}
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self.material = ifcopenshell.api.material.add_material(self.file, name="Unknown")
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# IfcWallType.
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self.create_layer_type("IfcWallType", "WAL50", 0.05)
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self.create_layer_type("IfcWallType", "WAL100", 0.1)
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self.create_layer_type("IfcWallType", "WAL200", 0.2)
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self.create_layer_type("IfcWallType", "WAL300", 0.3)
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# IfcCoveringType.
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self.create_layer_type("IfcCoveringType", "COV10", 0.01)
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product = self.create_layer_type("IfcCoveringType", "COV20", 0.02)
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pset = ifcopenshell.api.pset.add_pset(self.file, product=product, name="EPset_Parametric")
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ifcopenshell.api.pset.edit_pset(self.file, pset=pset, properties={"LayerSetDirection": "AXIS2"})
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product = self.create_layer_type("IfcCoveringType", "COV30", 0.03)
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pset = ifcopenshell.api.pset.add_pset(self.file, product=product, name="EPset_Parametric")
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ifcopenshell.api.pset.edit_pset(self.file, pset=pset, properties={"LayerSetDirection": "AXIS3"})
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if schema != "IFC2X3":
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self.create_layer_type("IfcRampType", "RAM200", 0.2)
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profile = self.file.create_entity("IfcCircleProfileDef", ProfileType="AREA", Radius=0.3)
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self.create_profile_type("IfcPileType", "P1", profile)
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self.create_layer_type("IfcSlabType", "FLR200", 0.2)
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self.create_layer_type("IfcSlabType", "FLR300", 0.3)
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if schema != "IFC2X3":
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# No profile sets in IFC2X3 :(
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profile = self.file.create_entity(
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"IfcRectangleProfileDef", ProfileName="500x600", ProfileType="AREA", XDim=0.5, YDim=0.6
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)
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self.create_profile_type("IfcColumnType", "C1", profile)
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profile = self.file.create_entity(
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"IfcCircleHollowProfileDef",
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ProfileName="500.0x5.0 CHS",
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ProfileType="AREA",
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Radius=0.25,
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WallThickness=0.005,
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)
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self.create_profile_type("IfcColumnType", "C2", profile)
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profile = self.file.create_entity(
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"IfcRectangleHollowProfileDef",
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ProfileName="150x75x2.0 RHS",
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ProfileType="AREA",
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XDim=0.075,
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YDim=0.15,
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WallThickness=0.002,
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InnerFilletRadius=0.005,
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OuterFilletRadius=0.005,
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)
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self.create_profile_type("IfcColumnType", "C3", profile)
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profile = self.file.create_entity(
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"IfcIShapeProfileDef",
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ProfileName="DEMO-I",
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ProfileType="AREA",
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OverallWidth=0.1,
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OverallDepth=0.2,
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WebThickness=0.005,
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FlangeThickness=0.01,
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FilletRadius=0.005,
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)
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self.create_profile_type("IfcBeamType", "B1", profile)
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profile = self.file.create_entity(
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"IfcCShapeProfileDef",
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ProfileName="DEMO-C",
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ProfileType="AREA",
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Depth=0.2,
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Width=0.1,
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WallThickness=0.0015,
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Girth=0.03,
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InternalFilletRadius=0.005,
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)
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self.create_profile_type("IfcBeamType", "B2", profile)
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self.create_type(
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"IfcWindowType" if schema != "IFC2X3" else "IfcWindowStyle",
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"WT01",
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{"model_body": "Window", "plan_body": "Window-Plan"},
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)
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self.create_type(
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"IfcDoorType" if schema != "IFC2X3" else "IfcDoorStyle",
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"DT01",
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{"model_body": "Door", "plan_body": "Door-Plan"},
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)
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self.create_type("IfcFurnitureType", "BUN01", {"model_body": "Bunny", "plan_body": "Bunny-Plan"})
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# IfcAnnotation types.
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self.create_symbol_type("SETOUT-POINT", "setout-point")
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self.create_symbol_type("CONTROL-POINT", "control-point")
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self.create_symbol_type("TRAVERSE-POINT", "traverse-point")
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self.create_line_type("DASHED", "dashed")
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self.create_line_type("FINE", "fine")
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self.create_line_type("THIN", "thin")
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self.create_line_type("MEDIUM", "medium")
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self.create_line_type("THICK", "thick")
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self.create_line_type("STRONG", "strong")
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self.create_text_type(
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"SETOUT-TAG", "setout-tag", ["E ``round({{easting}}, 0.001)``", "N ``round({{northing}}, 0.001)``"]
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)
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self.create_text_type("DOOR-TAG", "door-tag", ["{{type.Name}}", "{{Name}}"])
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self.create_text_type("WINDOW-TAG", "window-tag", ["{{Name}}"])
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self.create_text_type(
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"SPACE-TAG",
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"space-tag",
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["{{Name}}", "{{Description}}", "``round({{Qto_SpaceBaseQuantities.NetFloorArea}}, 0.01)``"],
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)
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self.create_text_type("MATERIAL-TAG", "rectangle-tag", ["{{material.Name}}"])
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self.create_text_type("TYPE-TAG", "capsule-tag", ["{{type.Name}}"])
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self.create_text_type("NAME-TAG", "capsule-tag", ["{{Name}}"])
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sync_guids(self.file, self.guid_source)
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self.file.write(libraries_path / f"{self.file.schema} {self.output_filename}")
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if schema == "IFC2X3":
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ifcopenshell.api.owner.settings.restore()
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def create_symbol_type(self, name: str, symbol: str) -> None:
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element = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcTypeProduct", name=name)
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element.ApplicableOccurrence = "IfcAnnotation/SYMBOL"
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pset = ifcopenshell.api.pset.add_pset(self.file, product=element, name="EPset_Annotation")
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ifcopenshell.api.pset.edit_pset(self.file, pset=pset, properties={"Symbol": symbol})
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def create_line_type(self, name: str, classes: str) -> None:
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element = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcTypeProduct", name=name)
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element.ApplicableOccurrence = "IfcAnnotation/LINEWORK"
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pset = ifcopenshell.api.pset.add_pset(self.file, product=element, name="EPset_Annotation")
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ifcopenshell.api.pset.edit_pset(self.file, pset=pset, properties={"Classes": classes})
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def create_text_type(self, name: str, symbol: str, literals: list[str]) -> None:
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element = ifcopenshell.api.root.create_entity(self.file, ifc_class="IfcTypeProduct", name=name)
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element.ApplicableOccurrence = "IfcAnnotation/TEXT"
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pset = ifcopenshell.api.pset.add_pset(self.file, product=element, name="EPset_Annotation")
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ifcopenshell.api.pset.edit_pset(self.file, pset=pset, properties={"Symbol": symbol})
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items: list[ifcopenshell.entity_instance] = []
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for literal in literals:
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origin = self.builder.create_axis2_placement_3d()
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items.append(
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self.file.create_entity(
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"IfcTextLiteralWithExtent",
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literal,
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origin,
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"RIGHT",
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self.file.create_entity("IfcPlanarExtent", 1000, 1000),
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"center",
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),
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)
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representation = self.file.create_entity(
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"IfcShapeRepresentation",
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self.representations["model_annotation"],
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self.representations["model_annotation"].ContextIdentifier,
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"Annotation2D",
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items,
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)
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ifcopenshell.api.geometry.assign_representation(self.file, product=element, representation=representation)
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def create_layer_type(self, ifc_class: str, name: str, thickness: float) -> ifcopenshell.entity_instance:
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element = ifcopenshell.api.root.create_entity(self.file, ifc_class=ifc_class, name=name)
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rel = ifcopenshell.api.material.assign_material(self.file, products=[element], type="IfcMaterialLayerSet")
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assert isinstance(rel, ifcopenshell.entity_instance)
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layer_set = rel.RelatingMaterial
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layer = ifcopenshell.api.material.add_layer(self.file, layer_set=layer_set, material=self.material)
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layer.LayerThickness = thickness
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if self.file.schema != "IFC2X3":
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ifcopenshell.api.project.assign_declaration(self.file, definitions=[element], relating_context=self.library)
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return element
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def create_profile_type(self, ifc_class: str, name: str, profile: ifcopenshell.entity_instance) -> None:
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element = ifcopenshell.api.root.create_entity(self.file, ifc_class=ifc_class, name=name)
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rel = ifcopenshell.api.material.assign_material(self.file, products=[element], type="IfcMaterialProfileSet")
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assert isinstance(rel, ifcopenshell.entity_instance)
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profile_set = rel.RelatingMaterial
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material_profile = ifcopenshell.api.material.add_profile(
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self.file, profile_set=profile_set, material=self.material
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)
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ifcopenshell.api.material.assign_profile(self.file, material_profile=material_profile, profile=profile)
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if self.file.schema != "IFC2X3":
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ifcopenshell.api.project.assign_declaration(self.file, definitions=[element], relating_context=self.library)
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def create_type(self, ifc_class: str, name: str, representations: dict[str, str]) -> None:
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""" "
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:param representations: Mapping of representation contexts to Blender objects names to be used
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as a representation source.
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"""
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element = ifcopenshell.api.root.create_entity(self.file, ifc_class=ifc_class, name=name)
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for rep_name, obj_name in representations.items():
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obj = bpy.data.objects[obj_name]
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assert isinstance(obj.data, bpy.types.Mesh)
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representation = ifcopenshell.api.geometry.add_representation(
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self.file,
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context=self.representations[rep_name],
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blender_object=obj,
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geometry=obj.data,
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total_items=max(1, len(obj.material_slots)),
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)
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assert representation
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styles: list[ifcopenshell.entity_instance] = []
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for slot in obj.material_slots:
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material = slot.material
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assert material
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style = ifcopenshell.api.style.add_style(self.file, name=material.name)
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attributes = tool.Style.get_surface_shading_attributes(material)
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if self.file.schema == "IFC2X3":
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del attributes["Transparency"]
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ifcopenshell.api.style.add_surface_style(
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self.file,
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style=style,
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ifc_class="IfcSurfaceStyleShading",
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attributes=attributes,
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)
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styles.append(style)
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if styles:
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ifcopenshell.api.style.assign_representation_styles(
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self.file, shape_representation=representation, styles=styles
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)
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ifcopenshell.api.geometry.assign_representation(self.file, product=element, representation=representation)
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if self.file.schema != "IFC2X3":
|
|
ifcopenshell.api.project.assign_declaration(self.file, definitions=[element], relating_context=self.library)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
LibraryGenerator().generate("IFC2X3")
|
|
LibraryGenerator().generate("IFC4")
|
|
LibraryGenerator().generate("IFC4X3")
|