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IFC unit settings are now preserved on import

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Dion Moult
2020-05-07 21:25:53 +10:00
parent bbc429bb99
commit 6300b27ac4
1 changed files with 20 additions and 1 deletions
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src/ifcblenderexport/blenderbim/bim/import_ifc.py
+20 -1
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@@ -227,6 +227,7 @@ class IfcImporter():
if self.ifc_import_settings.should_auto_set_workarounds: if self.ifc_import_settings.should_auto_set_workarounds:
self.auto_set_workarounds() self.auto_set_workarounds()
self.calculate_unit_scale() self.calculate_unit_scale()
self.set_units()
self.create_geometric_representation_contexts() self.create_geometric_representation_contexts()
self.create_project() self.create_project()
self.create_classifications() self.create_classifications()
@@ -706,7 +707,7 @@ class IfcImporter():
units = self.file.by_type('IfcUnitAssignment')[0] units = self.file.by_type('IfcUnitAssignment')[0]
for unit in units.Units: for unit in units.Units:
if not hasattr(unit, 'UnitType') \ if not hasattr(unit, 'UnitType') \
or unit.UnitType != 'LENGTHUNIT': or unit.UnitType != 'LENGTHUNIT':
continue continue
while unit.is_a('IfcConversionBasedUnit'): while unit.is_a('IfcConversionBasedUnit'):
self.unit_scale *= unit.ConversionFactor.ValueComponent.wrappedValue self.unit_scale *= unit.ConversionFactor.ValueComponent.wrappedValue
@@ -714,6 +715,24 @@ class IfcImporter():
if unit.is_a('IfcSIUnit'): if unit.is_a('IfcSIUnit'):
self.unit_scale *= SIUnitHelper.get_prefix_multiplier(unit.Prefix) self.unit_scale *= SIUnitHelper.get_prefix_multiplier(unit.Prefix)
def set_units(self):
units = self.file.by_type('IfcUnitAssignment')[0]
for unit in units.Units:
if unit.UnitType == 'LENGTHUNIT':
if unit.is_a('IfcSIUnit'):
bpy.context.scene.unit_settings.system = 'METRIC'
if unit.Name == 'METRE':
if not unit.Prefix:
bpy.context.scene.unit_settings.length_unit = 'METERS'
else:
bpy.context.scene.unit_settings.length_unit = f'{unit.Prefix}METERS'
else:
bpy.context.scene.unit_settings.system = 'IMPERIAL'
if unit.Name == 'inch':
bpy.context.scene.unit_settings.length_unit = 'INCHES'
elif unit.Name == 'foot':
bpy.context.scene.unit_settings.length_unit = 'FEET'
def create_geometric_representation_contexts(self): def create_geometric_representation_contexts(self):
bpy.context.scene.BIMProperties.has_model_context = False bpy.context.scene.BIMProperties.has_model_context = False
for context in self.file.by_type('IfcGeometricRepresentationContext'): for context in self.file.by_type('IfcGeometricRepresentationContext'):