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#2224 Optimise import by 10-40% by removing unnecessary slow traversal of representations

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This commit is contained in:
Dion Moult
2022-06-08 09:14:36 +10:00
parent 2ab808a216
commit 96e4641ebf
1 changed files with 26 additions and 7 deletions
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src/blenderbim/blenderbim/bim/import_ifc.py
+26 -7
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@@ -121,7 +121,14 @@ class MaterialCreator:
def parse_representation_item(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 = []
styles = list(item.StyledByItem[0].Styles)
while styles:
style = styles.pop()
if style.is_a("IfcSurfaceStyle"):
style_ids.append(style.id())
elif style.is_a("IfcPresentationStyleAssignment"):
styles.extend(style.Styles)
if not style_ids:
return
for style_id in style_ids:
@@ -873,8 +880,13 @@ class IfcImporter:
def get_representation_item_material_name(self, item):
if not item.StyledByItem:
return
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
styles = list(item.StyledByItem[0].Styles)
while styles:
style = styles.pop()
if style.is_a("IfcSurfaceStyle"):
return style.id()
elif style.is_a("IfcPresentationStyleAssignment"):
styles.extend(style.Styles)
def create_native_faceted_brep(self, element, mesh_name):
# TODO: georeferencing?
@@ -1304,11 +1316,18 @@ class IfcImporter:
for material_definition_representation in self.file.by_type("IfcMaterialDefinitionRepresentation"):
material = material_definition_representation.RepresentedMaterial
blender_material = self.material_creator.materials[material.id()]
for representation in material_definition_representation.Representations:
for style in [e for e in self.file.traverse(representation) if e.is_a("IfcSurfaceStyle")]:
blender_material = self.material_creator.materials[material.id()]
self.create_style(style, blender_material)
parsed_styles.add(style.id())
styles = []
for styled_item in representation.Items:
styles.extend(styled_item.Styles)
while styles:
style = styles.pop()
if style.is_a("IfcSurfaceStyle"):
self.create_style(style, blender_material)
parsed_styles.add(style.id())
elif style.is_a("IfcPresentationStyleAssignment"):
styles.extend(style.Styles)
for style in self.file.by_type("IfcSurfaceStyle"):
if style.id() in parsed_styles: