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Make IFC export more granular to only export contexts that are specified

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This allows us to build up highly specific IFC exports instead of monolithic files.
This commit is contained in:
Dion Moult
2020-05-05 15:25:48 +10:00
parent fa8b12497c
commit 01e82620aa
2 changed files with 16 additions and 19 deletions
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src/ifcblenderexport/blenderbim/bim/export_ifc.py
+16 -13
View File
@@ -1111,7 +1111,9 @@ class IfcExporter():
self.create_units()
self.create_people()
self.create_organisations()
self.set_common_definitions()
self.create_origin()
self.create_owner_history()
self.set_header()
self.create_rep_context()
self.create_project()
self.create_library_information()
@@ -1156,11 +1158,11 @@ class IfcExporter():
self.relate_objects_to_groups()
self.write_ifc_file()
def set_common_definitions(self):
# Owner history doesn't actually work like this, but for now, it does :)
self.origin = self.file.by_type('IfcAxis2Placement3D')[0]
self.create_owner_history()
self.set_header()
def create_origin(self):
self.origin = self.file.createIfcAxis2Placement3D(
self.file.createIfcCartesianPoint((0., 0., 0.)),
self.file.createIfcDirection((0., 0., 1.)),
self.file.createIfcDirection((1., 0., 0.)))
def set_header(self):
# TODO: add all metadata, pending bug #747
@@ -1449,14 +1451,15 @@ class IfcExporter():
def create_rep_context(self):
self.ifc_rep_context = {}
self.ifc_rep_context['Model'] = {
'ifc': self.file.createIfcGeometricRepresentationContext(
None, 'Model', 3, 1.0E-05, self.origin)}
if 'Plan' in self.ifc_export_settings.contexts:
self.ifc_rep_context['Plan'] = {
'ifc': self.file.createIfcGeometricRepresentationContext(
None, 'Plan', 2, 1.0E-05, self.origin)}
for context in self.ifc_export_settings.context_tree:
if context['name'] == 'Model':
self.ifc_rep_context['Model'] = {
'ifc': self.file.createIfcGeometricRepresentationContext(
None, 'Model', 3, 1.0E-05, self.origin)}
elif context['name'] == 'Plan':
self.ifc_rep_context['Plan'] = {
'ifc': self.file.createIfcGeometricRepresentationContext(
None, 'Plan', 2, 1.0E-05, self.origin)}
for subcontext in context['subcontexts']:
self.ifc_rep_context[context['name']][subcontext['name']] = {}
for target_view in subcontext['target_views']:
src/ifcblenderexport/blenderbim/bim/schema/template.ifc
-6
View File
@@ -5,11 +5,5 @@ FILE_NAME('$filename','2019-05-12T12:33:45',('$owner','$email'),('$company'),'If
FILE_SCHEMA(('IFC4'));
ENDSEC;
DATA;
#1=IFCDIRECTION((1.,0.,0.));
#2=IFCDIRECTION((0.,0.,1.));
#3=IFCCARTESIANPOINT((0.,0.,0.));
#4=IFCAXIS2PLACEMENT3D(#3,#2,#1);
#5=IFCDIRECTION((0.,1.,0.));
#6=IFCDIMENSIONALEXPONENTS(0,0,0,0,0,0,0);
ENDSEC;
END-ISO-10303-21;