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small optimization for da1bdc802

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On large projects predict dense mesh stage can take 20s+ and reusing attribute value can save up to half of this time.
Using indices also helps but it's not that significant and sometimes it's the same time as using attribute names.
This commit is contained in:
Andrej730
2024-05-14 15:43:19 +05:00
parent c50149ad87
commit 2fa30be0d0
1 changed files with 6 additions and 3 deletions
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src/blenderbim/blenderbim/bim/import_ifc.py
+6 -3
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@@ -609,7 +609,8 @@ class IfcImporter:
threshold = 10000 # Just from experience.
# The check for CfsFaces/Faces/CoordIndex accommodates invalid data from Cadwork
faces = [len(e.CfsFaces) for e in self.file.by_type("IfcClosedShell") if e.CfsFaces]
# 0 IfcClosedShell.CfsFaces
faces = [len(faces) for e in self.file.by_type("IfcClosedShell") if (faces := e[0])]
if faces and max(faces) > threshold:
self.ifc_import_settings.should_use_native_meshes = True
return
@@ -617,12 +618,14 @@ class IfcImporter:
if self.file.schema == "IFC2X3":
return
faces = [len(e.Faces) for e in self.file.by_type("IfcPolygonalFaceSet") if e.Faces]
# 2 IfcPolygonalFaceSet.Faces
faces = [len(faces) for e in self.file.by_type("IfcPolygonalFaceSet") if (faces := e[2])]
if faces and max(faces) > threshold:
self.ifc_import_settings.should_use_native_meshes = True
return
faces = [len(e.CoordIndex) for e in self.file.by_type("IfcTriangulatedFaceSet") if e.CoordIndex]
# 3 IfcTriangulatedFaceSet.CoordIndex
faces = [len(index) for e in self.file.by_type("IfcTriangulatedFaceSet") if (index := e[3])]
if faces and max(faces) > threshold:
self.ifc_import_settings.should_use_native_meshes = True