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New support for specifying collection modes. Spatial elements now support 2D representations as well.

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This commit is contained in:
Dion Moult
2021-09-21 10:14:07 +10:00
parent 090aae5ff6
commit f83d13b97c
4 changed files with 323 additions and 180 deletions
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src/blenderbim/blenderbim/bim/import_ifc.py
+144 -179
View File
@@ -163,9 +163,8 @@ class IfcImporter:
self.settings_native.set(self.settings_native.INCLUDE_CURVES, True)
self.settings_2d = ifcopenshell.geom.settings()
self.settings_2d.set(self.settings_2d.INCLUDE_CURVES, True)
self.iterator_elements = set()
self.project = None
self.spatial_structure_elements = {}
self.collections = {}
self.elements = set()
self.type_collection = None
self.type_products = {}
@@ -177,7 +176,6 @@ class IfcImporter:
self.added_data = {}
self.native_elements = set()
self.native_data = {}
self.aggregates = {}
self.material_creator = MaterialCreator(ifc_import_settings, self)
@@ -217,24 +215,24 @@ class IfcImporter:
self.profile_code("Create materials")
self.create_styles()
self.profile_code("Create styles")
self.parse_native_elements()
self.profile_code("Parsing native elements")
self.create_grids()
self.profile_code("Create grids")
self.create_native_products()
self.profile_code("Create native products")
self.create_products()
self.profile_code("Create products")
self.create_empty_and_2d_elements()
self.profile_code("Create empty products")
self.create_type_products()
self.profile_code("Create type products")
self.create_annotation()
self.profile_code("Create annotation")
self.create_structural_elements()
self.profile_code("Create structural elements")
self.place_objects_in_spatial_tree()
self.profile_code("Placing objects in spatial tree")
self.parse_native_elements()
self.profile_code("Parsing native elements")
self.create_native_elements()
self.profile_code("Create native elements")
self.create_elements()
self.profile_code("Create elements")
self.create_grids()
self.profile_code("Create grids")
self.create_spatial_elements()
self.profile_code("Create spatial elements")
self.create_structural_items()
self.profile_code("Create structural items")
self.create_type_products()
self.profile_code("Create type products")
self.place_objects_in_collections()
self.profile_code("Place objects in collections")
if self.ifc_import_settings.should_merge_by_class:
self.merge_by_class()
self.profile_code("Merging by class")
@@ -271,15 +269,30 @@ class IfcImporter:
def process_element_filter(self):
if self.ifc_import_settings.has_filter:
self.elements = set(self.ifc_import_settings.elements)
self.spatial_elements = self.get_spatial_elements_filtered_by_elements(self.elements)
else:
self.elements = set(self.file.by_type("IfcElement"))
self.iterator_elements = set(self.elements)
if self.file.schema == "IFC2X3":
self.spatial_elements = set(self.file.by_type("IfcSpatialStructureElement"))
else:
self.spatial_elements = set(self.file.by_type("IfcSpatialElement"))
def get_spatial_elements_filtered_by_elements(self, elements):
leaf_spatial_elements = set([ifcopenshell.util.element.get_container(e) for e in elements])
results = set()
for spatial_element in leaf_spatial_elements:
while True:
results.add(spatial_element)
spatial_element = ifcopenshell.util.element.get_aggregate(spatial_element)
if not spatial_element or spatial_element.is_a("IfcContext"):
break
return results
def parse_native_elements(self):
for element in self.elements:
if self.is_native(element):
self.native_elements.add(element)
self.iterator_elements -= self.native_elements
self.elements -= self.native_elements
def is_native(self, element):
if (
@@ -468,14 +481,7 @@ class IfcImporter:
grid_collection.objects.link(obj)
def create_type_products(self):
for collection in self.project["blender"].children:
if collection.name == "Types":
self.type_collection = collection
break
if not self.type_collection:
self.type_collection = bpy.data.collections.new("Types")
self.project["blender"].children.link(self.type_collection)
# TODO allow filtering of spatial elements too
if self.ifc_import_settings.has_filter:
type_products = set([ifcopenshell.util.element.get_type(e) for e in self.elements])
else:
@@ -518,7 +524,7 @@ class IfcImporter:
):
return representation_map
def create_native_products(self):
def create_native_elements(self):
total = 0
checkpoint = time.time()
bm = bmesh.new()
@@ -551,39 +557,51 @@ class IfcImporter:
bm.to_mesh(mesh)
bm.clear()
bm.free()
print("Done creating geometry")
def create_products(self):
if self.ifc_import_settings.has_filter and not self.iterator_elements:
return
def create_spatial_elements(self):
products = self.create_products(self.spatial_elements)
self.spatial_elements -= products
products = self.create_curve_products(self.spatial_elements)
self.spatial_elements -= products
for element in self.spatial_elements:
self.create_product(element)
def create_elements(self):
products = self.create_products(self.elements)
self.elements -= products
products = self.create_curve_products(self.elements)
self.elements -= products
for element in self.elements:
self.create_product(element)
def create_products(self, products):
results = set()
if not products:
return results
if self.ifc_import_settings.should_use_cpu_multiprocessing:
iterator = ifcopenshell.geom.iterator(
self.settings,
self.file,
multiprocessing.cpu_count(),
include=self.iterator_elements or None,
self.settings, self.file, multiprocessing.cpu_count(), include=products
)
else:
iterator = ifcopenshell.geom.iterator(self.settings, self.file, include=self.iterator_elements or None)
iterator = ifcopenshell.geom.iterator(self.settings, self.file, include=products)
valid_file = iterator.initialize()
if not valid_file:
return False
return results
checkpoint = time.time()
total_created = 0
approx_total_products = len(self.iterator_elements) or len(self.file.by_type("IfcElement"))
total = 0
start_progress = self.progress
progress_range = 85 - start_progress
while True:
if total_created % 250 == 0:
total += 1
if total % 250 == 0:
print(
"{} / ~{} elements processed in {:.2f}s ...".format(
total_created, approx_total_products, time.time() - checkpoint
"{} ({}%) elements processed in {:.2f}s ...".format(
total, iterator.progress(), time.time() - checkpoint
)
)
checkpoint = time.time()
if approx_total_products:
self.update_progress(((total_created / approx_total_products) * progress_range) + start_progress)
#self.update_progress(((total / approx_total_products) * progress_range) + start_progress)
shape = iterator.get()
if shape:
product = self.file.by_id(shape.guid)
@@ -592,35 +610,18 @@ class IfcImporter:
if shape.context not in ["Body", "Facetation"] and IfcStore.get_element(shape.guid):
# We only load a single context, and we prioritise the Body context. See #1290.
pass
elif product.is_a("IfcAnnotation") and product.ObjectType == "DRAWING":
# We have already processed this during the create_annotation step
pass
else:
self.create_product(product, shape)
total_created += 1
results.add(product)
if not iterator.next():
break
print("Done creating geometry")
def create_empty_and_2d_elements(self):
curve_products = []
unadded_element_ids = set([e.id() for e in self.elements]) - set(self.added_data.keys())
for element_id in unadded_element_ids:
element = self.file.by_id(element_id)
if element.is_a("IfcPort"):
continue
if not element.Representation:
self.create_product(element)
else:
curve_products.append(element)
if curve_products:
self.create_curve_products(curve_products)
return results
def create_annotation(self):
self.create_curve_products(self.file.by_type("IfcAnnotation"))
def create_structural_elements(self):
def create_structural_items(self):
# Create structural collections
self.structural_member_collection = bpy.data.collections.new("Members")
self.structural_connection_collection = bpy.data.collections.new("Connections")
@@ -659,6 +660,9 @@ class IfcImporter:
self.link_element(product, obj)
def create_curve_products(self, products):
results = set()
if not products:
return results
if self.ifc_import_settings.should_use_cpu_multiprocessing:
iterator = ifcopenshell.geom.iterator(
self.settings_2d, self.file, multiprocessing.cpu_count(), include=products
@@ -667,7 +671,7 @@ class IfcImporter:
iterator = ifcopenshell.geom.iterator(self.settings_2d, self.file, include=products)
valid_file = iterator.initialize()
if not valid_file:
return False
return results
checkpoint = time.time()
total = 0
while True:
@@ -677,10 +681,13 @@ class IfcImporter:
checkpoint = time.time()
shape = iterator.get()
if shape:
product = self.file.by_id(shape.guid)
self.create_product(self.file.by_id(shape.guid), shape)
results.add(product)
if not iterator.next():
break
print("Done creating geometry")
return results
def create_product(self, element, shape=None, mesh=None):
if element is None:
@@ -731,7 +738,7 @@ class IfcImporter:
def get_representation_item_material_name(self, item):
if not item.StyledByItem:
return
style_ids = [e.id() for e in self.ifc_importer.file.traverse(item.StyledByItem[0]) if e.is_a("IfcSurfaceStyle")]
style_ids = [e.id() for e in self.file.traverse(item.StyledByItem[0]) if e.is_a("IfcSurfaceStyle")]
return style_ids[0] if style_ids else None
def create_native_faceted_brep(self, element, mesh_name):
@@ -982,38 +989,32 @@ class IfcImporter:
self.create_aggregate_collections()
def create_spatial_decomposition_collections(self):
containers = set([ifcopenshell.util.element.get_container(e) for e in self.elements])
self.decomposition_containers = set()
for container in containers:
while container:
self.decomposition_containers.add(container)
container = ifcopenshell.util.element.get_aggregate(container)
if container and container.is_a("IfcContext"):
container = None
for rel_aggregate in self.project["ifc"].IsDecomposedBy or []:
self.add_related_objects(self.project["blender"], rel_aggregate.RelatedObjects)
self.create_spatial_decomposition_collection(self.project["blender"], rel_aggregate.RelatedObjects)
self.create_type_collection()
def add_related_objects(self, parent, related_objects):
def create_type_collection(self):
for collection in self.project["blender"].children:
if collection.name == "Types":
self.type_collection = collection
break
if not self.type_collection:
self.type_collection = bpy.data.collections.new("Types")
self.project["blender"].children.link(self.type_collection)
def create_spatial_decomposition_collection(self, parent, related_objects):
for element in related_objects:
if element not in self.decomposition_containers:
if element not in self.spatial_elements:
continue
global_id = element.GlobalId
collection = bpy.data.collections.new(self.get_name(element))
self.spatial_structure_elements[global_id] = {"blender": collection}
self.collections[global_id] = collection
parent.children.link(collection)
obj = self.create_product(element)
if obj:
self.spatial_structure_elements[global_id]["blender_obj"] = obj
collection.objects.link(obj)
if element.IsDecomposedBy:
for rel_aggregate in element.IsDecomposedBy:
self.add_related_objects(collection, rel_aggregate.RelatedObjects)
self.create_spatial_decomposition_collection(collection, rel_aggregate.RelatedObjects)
def create_aggregate_collections(self):
self.create_aggregates()
self.create_aggregate_tree()
def create_aggregates(self):
if self.ifc_import_settings.has_filter:
rel_aggregates = [e.IsDecomposedBy[0] for e in self.elements if e.IsDecomposedBy]
else:
@@ -1022,39 +1023,24 @@ class IfcImporter:
if len(rel_aggregates) > 10000:
# More than 10,000 collections makes Blender unhappy
print("Skipping aggregate collections for performance.")
self.ifc_import_settings.collection_mode = "SPATIAL_DECOMPOSITION"
return
aggregates = {}
for rel_aggregate in rel_aggregates:
self.create_aggregate(rel_aggregate)
element = rel_aggregate.RelatingObject
collection = bpy.data.collections.new(self.get_name(element))
aggregates[element.GlobalId] = {"element": element, "collection": collection}
self.collections[element.GlobalId] = collection
def create_aggregate_tree(self):
for aggregate in self.aggregates.values():
if aggregate["container"].is_a("IfcSpatialStructureElement"):
self.spatial_structure_elements[aggregate["container"].GlobalId]["blender"].children.link(
aggregate["blender"]
)
else:
self.aggregates[aggregate["container"].GlobalId]["blender"].children.link(aggregate["blender"])
def create_aggregate(self, rel_aggregate):
element = rel_aggregate.RelatingObject
obj = bpy.data.objects.new("{}/{}".format(element.is_a(), element.Name), None)
obj.matrix_world = self.apply_blender_offset_to_matrix_world(obj, self.get_element_matrix(element))
self.link_element(element, obj)
collection = bpy.data.collections.new(obj.name)
collection.objects.link(obj)
self.aggregates[element.GlobalId] = {
"blender": collection,
"blender_obj": obj,
"container": self.get_aggregate_container(element),
}
def get_aggregate_container(self, element):
if hasattr(element, "ContainedInStructure") and element.ContainedInStructure:
container = element.ContainedInStructure[0].RelatingStructure
elif hasattr(element, "Decomposes") and element.Decomposes:
container = element.Decomposes[0].RelatingObject
return container
for global_id, aggregate in aggregates.items():
parent = ifcopenshell.util.element.get_aggregate(aggregate["element"])
if parent:
self.collections[parent.GlobalId].children.link(aggregate["collection"])
continue
parent = ifcopenshell.util.element.get_container(aggregate["element"])
if parent:
self.collections[parent.GlobalId].children.link(aggregate["collection"])
def create_openings_collection(self):
self.opening_collection = bpy.data.collections.new("IfcOpeningElements")
@@ -1115,74 +1101,41 @@ class IfcImporter:
def get_name(self, element):
return "{}/{}".format(element.is_a(), element.Name)
def place_objects_in_spatial_tree(self):
def place_objects_in_collections(self):
for ifc_definition_id, obj in self.added_data.items():
if isinstance(obj, bpy.types.Object):
self.place_object_in_spatial_tree(self.file.by_id(ifc_definition_id), obj)
self.place_object_in_collection(self.file.by_id(ifc_definition_id), obj)
def place_object_in_spatial_tree(self, element, obj):
if element.is_a() in ["IfcProject", "IfcProjectLibrary"]:
def place_object_in_collection(self, element, obj):
if self.ifc_import_settings.collection_mode == "DECOMPOSITION":
self.place_object_in_decomposition_collection(element, obj)
elif self.ifc_import_settings.collection_mode == "SPATIAL_DECOMPOSITION":
self.place_object_in_spatial_decomposition_collection(element, obj)
def place_object_in_decomposition_collection(self, element, obj):
if element.is_a("IfcProject"):
return
elif element.GlobalId in self.collections:
return self.collections[element.GlobalId].objects.link(obj)
elif getattr(element, "Decomposes", None):
aggregate = ifcopenshell.util.element.get_aggregate(element)
return self.collections[aggregate.GlobalId].objects.link(obj)
else:
return self.place_object_in_spatial_decomposition_collection(element, obj)
def place_object_in_spatial_decomposition_collection(self, element, obj):
if element.is_a("IfcProject"):
return
elif element.GlobalId in self.collections:
return self.collections[element.GlobalId].objects.link(obj)
elif element.is_a("IfcTypeObject"):
self.type_collection.objects.link(obj)
elif element.GlobalId in self.aggregates:
return
elif element.GlobalId in self.spatial_structure_elements:
if not obj.data:
return
# Since spatial structure elements are generated as empties, we'll replace it with the representation
spatial_obj = self.spatial_structure_elements[element.GlobalId]["blender_obj"]
spatial_collection = self.spatial_structure_elements[element.GlobalId]["blender"]
spatial_name = spatial_obj.name
spatial_collection.objects.link(obj)
bpy.data.objects.remove(spatial_obj)
obj.name = spatial_name
elif (
hasattr(element, "ContainedInStructure")
and element.ContainedInStructure
and element.ContainedInStructure[0].RelatingStructure
):
container = element.ContainedInStructure[0].RelatingStructure
if element.is_a("IfcGrid"):
grid_collection = bpy.data.collections.get(obj.name)
if grid_collection: # Just in case we ran into invalid grids from Revit
self.spatial_structure_elements[container.GlobalId]["blender"].children.link(grid_collection)
grid_collection.objects.link(obj)
else:
self.spatial_structure_elements[container.GlobalId]["blender"].objects.link(obj)
elif hasattr(element, "Decomposes") and element.Decomposes:
collection = None
if element.Decomposes[0].RelatingObject.is_a("IfcProject"):
collection = self.project["blender"]
elif element.Decomposes[0].RelatingObject.is_a("IfcSpatialStructureElement"):
if element.is_a("IfcSpatialStructureElement"):
global_id = element.GlobalId
if global_id in self.spatial_structure_elements:
if (
element.is_a("IfcSpatialStructureElement")
and "blender_obj" in self.spatial_structure_elements[global_id]
):
bpy.data.objects.remove(self.spatial_structure_elements[global_id]["blender_obj"])
collection = self.spatial_structure_elements[global_id]["blender"]
elif self.ifc_import_settings.collection_mode == "SPATIAL_DECOMPOSITION":
# TODO: refactor this to a more holistic collection mode feature
return self.place_object_in_spatial_tree(element.Decomposes[0].RelatingObject, obj)
else:
aggregate = element.Decomposes[0].RelatingObject
aggregate_data = self.aggregates.get(aggregate.GlobalId)
if not aggregate_data:
return self.place_object_in_spatial_tree(aggregate, obj)
collection = aggregate_data["blender"]
if collection:
collection.objects.link(obj)
else:
self.ifc_import_settings.logger.error("An element could not be placed in the spatial tree %s", element)
return self.type_collection.objects.link(obj)
elif element.is_a("IfcOpeningElement"):
self.opening_collection.objects.link(obj)
return self.opening_collection.objects.link(obj)
elif element.is_a("IfcStructuralMember"):
self.structural_member_collection.objects.link(obj)
return self.structural_member_collection.objects.link(obj)
elif element.is_a("IfcStructuralConnection"):
self.structural_connection_collection.objects.link(obj)
return self.structural_connection_collection.objects.link(obj)
elif element.is_a("IfcAnnotation") and element.ObjectType == "DRAWING":
view_collection = bpy.data.collections.get("Views")
if not view_collection:
@@ -1192,6 +1145,18 @@ class IfcImporter:
drawing_collection = bpy.data.collections.new("IfcGroup/" + group.Name)
view_collection.children.link(drawing_collection)
drawing_collection.objects.link(obj)
return
container = ifcopenshell.util.element.get_container(element)
if container:
if element.is_a("IfcGrid"): # TODO: refactor into a more holistic collection mode feature
grid_collection = bpy.data.collections.get(obj.name)
if grid_collection: # Just in case we run into invalid grids from Revit
self.collections[container.GlobalId].children.link(grid_collection)
grid_collection.objects.link(obj)
else:
self.collections[container.GlobalId].objects.link(obj)
else:
self.ifc_import_settings.logger.warning("Warning: this object is outside the spatial hierarchy %s", element)
bpy.context.scene.collection.objects.link(obj)
src/blenderbim/blenderbim/bim/module/project/operator.py
+2 -1
View File
@@ -377,7 +377,7 @@ class AppendLibraryElement(bpy.types.Operator):
self.import_type_materials(element, ifc_importer)
self.import_type_styles(element, ifc_importer)
ifc_importer.create_type_product(element)
ifc_importer.place_objects_in_spatial_tree()
ifc_importer.place_objects_in_collections()
def import_type_materials(self, element, ifc_importer):
for rel in element.HasAssociations:
@@ -569,6 +569,7 @@ class LoadProjectElements(bpy.types.Operator):
settings.elements = self.get_whitelist_elements()
elif self.props.filter_mode == "BLACKLIST":
settings.elements = self.get_blacklist_elements()
settings.collection_mode = self.props.collection_mode
settings.should_use_cpu_multiprocessing = self.props.should_use_cpu_multiprocessing
settings.should_merge_by_class = self.props.should_merge_by_class
settings.should_merge_by_material = self.props.should_merge_by_material
src/blenderbim/test/bim/module/project/test_operator.py
+55
View File
@@ -216,6 +216,61 @@ class TestLoadProjectElements(test.bim.bootstrap.NewFile):
And the object "IfcWall/Wall" does not exist
"""
@test.bim.bootstrap.scenario
def test_loading_with_the_decomposition_collection_mode(self):
return """
Given I press "bim.load_project(filepath='{cwd}/test/files/decomposition.ifc', is_advanced=True)"
When I set "scene.BIMProjectProperties.collection_mode" to "DECOMPOSITION"
And I set "scene.BIMProjectProperties.filter_mode" to "NONE"
And I press "bim.load_project_elements"
Then the object "IfcProject/My Project" is an "IfcProject"
And the object "IfcSite/My Site" is an "IfcSite"
And the object "IfcBuilding/My Building" is an "IfcBuilding"
And the object "IfcBuildingStorey/My Storey" is an "IfcBuildingStorey"
And the object "IfcSpace/Space" is an "IfcSpace"
And the object "IfcElementAssembly/Assembly" is an "IfcElementAssembly"
And the object "IfcBeam/Beam" is an "IfcBeam"
And the object "IfcSite/My Site" is in the collection "IfcSite/My Site"
And the object "IfcBuilding/My Building" is in the collection "IfcBuilding/My Building"
And the object "IfcBuildingStorey/My Storey" is in the collection "IfcBuildingStorey/My Storey"
And the object "IfcSpace/Space" is in the collection "IfcSpace/Space"
And the object "IfcElementAssembly/Assembly" is in the collection "IfcElementAssembly/Assembly"
And the object "IfcBeam/Beam" is in the collection "IfcElementAssembly/Assembly"
And the collection "IfcSite/My Site" is in the collection "IfcProject/My Project"
And the collection "IfcBuilding/My Building" is in the collection "IfcSite/My Site"
And the collection "IfcBuildingStorey/My Storey" is in the collection "IfcBuilding/My Building"
And the collection "IfcSpace/Space" is in the collection "IfcBuildingStorey/My Storey"
And the collection "IfcElementAssembly/Assembly" is in the collection "IfcSpace/Space"
And "scene.BIMProjectProperties.is_loading" is "False"
"""
@test.bim.bootstrap.scenario
def test_loading_with_the_spatial_decomposition_collection_mode(self):
return """
Given I press "bim.load_project(filepath='{cwd}/test/files/decomposition.ifc', is_advanced=True)"
When I set "scene.BIMProjectProperties.collection_mode" to "SPATIAL_DECOMPOSITION"
And I set "scene.BIMProjectProperties.filter_mode" to "NONE"
And I press "bim.load_project_elements"
Then the object "IfcProject/My Project" is an "IfcProject"
And the object "IfcSite/My Site" is an "IfcSite"
And the object "IfcBuilding/My Building" is an "IfcBuilding"
And the object "IfcBuildingStorey/My Storey" is an "IfcBuildingStorey"
And the object "IfcSpace/Space" is an "IfcSpace"
And the object "IfcElementAssembly/Assembly" is an "IfcElementAssembly"
And the object "IfcBeam/Beam" is an "IfcBeam"
And the object "IfcSite/My Site" is in the collection "IfcSite/My Site"
And the object "IfcBuilding/My Building" is in the collection "IfcBuilding/My Building"
And the object "IfcBuildingStorey/My Storey" is in the collection "IfcBuildingStorey/My Storey"
And the object "IfcSpace/Space" is in the collection "IfcSpace/Space"
And the object "IfcElementAssembly/Assembly" is in the collection "IfcSpace/Space"
And the object "IfcBeam/Beam" is in the collection "IfcSpace/Space"
And the collection "IfcSite/My Site" is in the collection "IfcProject/My Project"
And the collection "IfcBuilding/My Building" is in the collection "IfcSite/My Site"
And the collection "IfcBuildingStorey/My Storey" is in the collection "IfcBuilding/My Building"
And the collection "IfcSpace/Space" is in the collection "IfcBuildingStorey/My Storey"
And "scene.BIMProjectProperties.is_loading" is "False"
"""
@test.bim.bootstrap.scenario
def test_manual_offset_of_object_placements(self):
return """
src/blenderbim/test/files/decomposition.ifc
+122
View File
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ISO-10303-21;
HEADER;
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ENDSEC;
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END-ISO-10303-21;