Allow people to export context / project metadata

src/ifcblenderexport/blenderbim/export_ifc.py

@@ -572,6 +572,9 @@ class IfcParser():
                     {'rel_aggregates_relating_object': obj}
                 )
                 self.selected_products.append({'raw': obj, 'metadata': metadata})
+            elif self.is_a_project(self.get_ifc_class(obj.name)) \
+                    or self.is_a_library(self.get_ifc_class(obj.name)):
+                pass
             elif not self.is_a_library(self.get_ifc_class(obj.users_collection[0].name)):
                 self.selected_products.append({'raw': obj, 'metadata': metadata})
 
@@ -695,11 +698,12 @@ class IfcParser():
     def get_project(self):
         for collection in bpy.data.collections:
             if self.is_a_project(self.get_ifc_class(collection.name)):
+                obj = bpy.data.objects.get(collection.name)
                 return {
                     'ifc': None,
                     'raw': collection,
                     'class': self.get_ifc_class(collection.name),
-                    'attributes': self.get_object_attributes(collection)
+                    'attributes': self.get_object_attributes(obj)
                 }
 
     def get_libraries(self):

src/ifcblenderexport/blenderbim/operator.py

@@ -598,6 +598,7 @@ class QuickProjectSetup(bpy.types.Operator):
         building = bpy.data.collections.new('IfcBuilding/My Building')
         building_storey = bpy.data.collections.new('IfcBuildingStorey/Ground Floor')
 
+        project_obj = bpy.data.objects.new('IfcProject/My Project', None)
         site_obj = bpy.data.objects.new('IfcSite/My Site', None)
         building_obj = bpy.data.objects.new('IfcBuilding/My Building', None)
         building_storey_obj = bpy.data.objects.new('IfcBuildingStorey/Ground Floor', None)
@@ -607,6 +608,7 @@ class QuickProjectSetup(bpy.types.Operator):
         site.children.link(building)
         building.children.link(building_storey)
 
+        project.objects.link(project_obj)
         site.objects.link(site_obj)
         building.objects.link(building_obj)
         building_storey.objects.link(building_storey_obj)

src/ifcblenderexport/blenderbim/prop.py

@@ -119,7 +119,7 @@ def getIfcProducts(self, context):
     global products_enum
     if len(products_enum) < 1:
         products_enum.extend([(e, e, '') for e in
-            ['IfcElement', 'IfcElementType', 'IfcSpatialElement', 'IfcStructural']])
+            ['IfcElement', 'IfcElementType', 'IfcSpatialElement', 'IfcStructural', 'IfcContext']])
     return products_enum
 
 

src/ifcblenderexport/blenderbim/schema.py

@@ -10,6 +10,7 @@ class IfcSchema():
         self.schema_dir = os.path.join(cwd, 'schema') # TODO: make configurable
         # TODO: Make it less troublesome
         self.products = [
+            'IfcContext',
             'IfcElement',
             'IfcSpatialElement',
             'IfcStructural',

src/ifcblenderexport/blenderbim/schema/IfcContext_IFC4.json

@@ -0,0 +1,114 @@
+{
+    "IfcProject": {
+        "is_abstract": false,
+        "parent": "IfcContext",
+        "attributes": [
+            {
+                "name": "GlobalId",
+                "type": "IfcGloballyUniqueId",
+                "is_enum": false,
+                "enum_values": []
+            },
+            {
+                "name": "Name",
+                "type": "IfcLabel",
+                "is_enum": false,
+                "enum_values": []
+            },
+            {
+                "name": "Description",
+                "type": "IfcText",
+                "is_enum": false,
+                "enum_values": []
+            },
+            {
+                "name": "ObjectType",
+                "type": "IfcLabel",
+                "is_enum": false,
+                "enum_values": []
+            },
+            {
+                "name": "LongName",
+                "type": "IfcLabel",
+                "is_enum": false,
+                "enum_values": []
+            },
+            {
+                "name": "Phase",
+                "type": "IfcLabel",
+                "is_enum": false,
+                "enum_values": []
+            }
+        ],
+        "complex_attributes": [
+            {
+                "name": "OwnerHistory",
+                "type": "IfcOwnerHistory",
+                "is_select": false,
+                "select_types": []
+            },
+            {
+                "name": "UnitsInContext",
+                "type": "IfcUnitAssignment",
+                "is_select": false,
+                "select_types": []
+            }
+        ]
+    },
+    "IfcProjectLibrary": {
+        "is_abstract": false,
+        "parent": "IfcContext",
+        "attributes": [
+            {
+                "name": "GlobalId",
+                "type": "IfcGloballyUniqueId",
+                "is_enum": false,
+                "enum_values": []
+            },
+            {
+                "name": "Name",
+                "type": "IfcLabel",
+                "is_enum": false,
+                "enum_values": []
+            },
+            {
+                "name": "Description",
+                "type": "IfcText",
+                "is_enum": false,
+                "enum_values": []
+            },
+            {
+                "name": "ObjectType",
+                "type": "IfcLabel",
+                "is_enum": false,
+                "enum_values": []
+            },
+            {
+                "name": "LongName",
+                "type": "IfcLabel",
+                "is_enum": false,
+                "enum_values": []
+            },
+            {
+                "name": "Phase",
+                "type": "IfcLabel",
+                "is_enum": false,
+                "enum_values": []
+            }
+        ],
+        "complex_attributes": [
+            {
+                "name": "OwnerHistory",
+                "type": "IfcOwnerHistory",
+                "is_select": false,
+                "select_types": []
+            },
+            {
+                "name": "UnitsInContext",
+                "type": "IfcUnitAssignment",
+                "is_select": false,
+                "select_types": []
+            }
+        ]
+    }
+}