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Fix #3497. Set closed vs unclosed polygonal face sets to allow loading in some IFC software.

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This commit is contained in:
Dion Moult
2023-07-25 17:41:33 +10:00
parent bc541d335f
commit e1913bf03e
1 changed files with 9 additions and 1 deletions
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src/ifcopenshell-python/ifcopenshell/api/geometry/add_representation.py
+9 -1
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@@ -58,6 +58,7 @@ class Usecase:
self.settings[key] = value self.settings[key] = value
def execute(self): def execute(self):
self.is_manifold = None
if ( if (
isinstance(self.settings["geometry"], bpy.types.Mesh) isinstance(self.settings["geometry"], bpy.types.Mesh)
and self.settings["geometry"] == self.settings["blender_object"].data and self.settings["geometry"] == self.settings["blender_object"].data
@@ -95,6 +96,13 @@ class Usecase:
mesh = self.settings["blender_object"].evaluated_get(bpy.context.evaluated_depsgraph_get()).to_mesh() mesh = self.settings["blender_object"].evaluated_get(bpy.context.evaluated_depsgraph_get()).to_mesh()
bm = bmesh.new() bm = bmesh.new()
bm.from_mesh(mesh) bm.from_mesh(mesh)
self.is_manifold = True
for edge in bm.edges:
if not edge.is_manifold:
self.is_manifold = False
break
if self.settings["should_force_triangulation"]: if self.settings["should_force_triangulation"]:
faces = bm.faces faces = bm.faces
else: else:
@@ -727,7 +735,7 @@ class Usecase:
coordinates = self.file.createIfcCartesianPointList3D( coordinates = self.file.createIfcCartesianPointList3D(
[self.convert_si_to_unit(v.co) for v in self.settings["geometry"].vertices] [self.convert_si_to_unit(v.co) for v in self.settings["geometry"].vertices]
) )
items = [self.file.createIfcPolygonalFaceSet(coordinates, None, i) for i in ifc_raw_items if i] items = [self.file.createIfcPolygonalFaceSet(coordinates, self.is_manifold, i) for i in ifc_raw_items if i]
return self.file.createIfcShapeRepresentation( return self.file.createIfcShapeRepresentation(
self.settings["context"], self.settings["context"],
self.settings["context"].ContextIdentifier, self.settings["context"].ContextIdentifier,