From an IFC element, you can now add a new Brick element in a Brick model

src/blenderbim/blenderbim/bim/module/brick/__init__.py

@@ -20,6 +20,7 @@ import bpy
 from . import ui, prop, operator
 
 classes = (
+    operator.AddBrick,
     operator.AssignBrickReference,
     operator.CloseBrickProject,
     operator.ConvertBrickProject,

src/blenderbim/blenderbim/bim/module/brick/data.py

@@ -38,8 +38,13 @@ class BrickschemaData:
 
     @classmethod
     def load(cls):
-        cls.data = {"is_loaded": cls.get_is_loaded(), "attributes": cls.attributes()}
         cls.is_loaded = True
+        cls.data = {
+            "is_loaded": cls.get_is_loaded(),
+            "attributes": cls.attributes(),
+            "namespaces": cls.namespaces(),
+            "brick_equipment_classes": cls.brick_equipment_classes(),
+        }
 
     @classmethod
     def get_is_loaded(cls):
@@ -99,6 +104,33 @@ class BrickschemaData:
                     )
         return results
 
+    @classmethod
+    def namespaces(cls):
+        if BrickStore.graph is None:
+            return []
+        results = []
+        for alias, uri in BrickStore.graph.namespaces():
+            results.append((uri, f"{alias}: {uri}", ""))
+        return results
+
+    @classmethod
+    def brick_equipment_classes(cls):
+        if BrickStore.graph is None:
+            return []
+        results = []
+        query = BrickStore.graph.query(
+            """
+            PREFIX brick: <https://brickschema.org/schema/Brick#>
+            PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
+            SELECT ?class WHERE {
+                ?class rdfs:subClassOf* brick:Equipment .
+            }
+        """
+        )
+        for uri in sorted([x[0].toPython() for x in query]):
+            results.append((uri, uri.split("#")[-1], ""))
+        return results
+
 
 class BrickschemaReferencesData:
     data = {}

src/blenderbim/blenderbim/bim/module/brick/operator.py

@@ -107,3 +107,23 @@ class AssignBrickReference(bpy.types.Operator, Operator):
             library=tool.Ifc.get().by_id(int(props.libraries)),
             brick_uri=props.bricks[props.active_brick_index].uri,
         )
+
+
+class AddBrick(bpy.types.Operator, Operator):
+    bl_idname = "bim.add_brick"
+    bl_label = "Add Brick"
+    bl_options = {"REGISTER", "UNDO"}
+
+    def _execute(self, context):
+        props = context.scene.BIMBrickProperties
+        library = None
+        if props.libraries:
+            library=tool.Ifc.get().by_id(int(props.libraries))
+        core.add_brick(
+            tool.Ifc,
+            tool.Brick,
+            obj=context.active_object,
+            namespace=props.namespace,
+            brick_class=props.brick_equipment_class,
+            library=library,
+        )

src/blenderbim/blenderbim/bim/module/brick/prop.py

@@ -42,6 +42,18 @@ def get_libraries(self, context):
     return BrickschemaReferencesData.data["libraries"]
 
 
+def get_namespaces(self, context):
+    if not BrickschemaData.is_loaded:
+        BrickschemaData.load()
+    return BrickschemaData.data["namespaces"]
+
+
+def get_brick_equipment_classes(self, context):
+    if not BrickschemaData.is_loaded:
+        BrickschemaData.load()
+    return BrickschemaData.data["brick_equipment_classes"]
+
+
 class Brick(PropertyGroup):
     name: StringProperty(name="Name")
     uri: StringProperty(name="URI")
@@ -54,3 +66,5 @@ class BIMBrickProperties(PropertyGroup):
     bricks: CollectionProperty(name="Bricks", type=Brick)
     active_brick_index: IntProperty(name="Active Brick Index", update=update_active_brick_index)
     libraries: EnumProperty(name="Libraries", items=get_libraries)
+    namespace: EnumProperty(name="Namespace", items=get_namespaces)
+    brick_equipment_class: EnumProperty(name="Brick Equipment Class", items=get_brick_equipment_classes)

src/blenderbim/blenderbim/bim/module/brick/ui.py

@@ -45,6 +45,10 @@ class BIM_PT_brickschema(Panel):
         row.label(text=self.props.active_brick_class)
         row.operator("bim.close_brick_project", text="", icon="CANCEL")
 
+        row = self.layout.row(align=True)
+        row.prop(self.props, "namespace", text="")
+        row.prop(self.props, "brick_equipment_class", text="")
+        row.operator("bim.add_brick", text="", icon="ADD")
         self.layout.template_list("BIM_UL_bricks", "", self.props, "bricks", self.props, "active_brick_index")
 
         for attribute in BrickschemaData.data["attributes"]:
@@ -54,6 +58,9 @@ class BIM_PT_brickschema(Panel):
             if attribute["is_uri"]:
                 op = row.operator("bim.view_brick_item", text="", icon="DISCLOSURE_TRI_RIGHT")
                 op.item = attribute["value_uri"]
+            if attribute["is_globalid"]:
+                op = row.operator("bim.select_global_id", icon="RESTRICT_SELECT_OFF", text="")
+                op.global_id = attribute["value"]
 
 
 class BIM_PT_ifc_brickschema_references(Panel):

src/blenderbim/blenderbim/core/brick.py

@@ -66,3 +66,10 @@ def assign_brick_reference(ifc, brick, obj=None, library=None, brick_uri=None):
     if not project:
         project = brick.add_brickifc_project(brick.get_namespace(brick_uri))
     brick.add_brickifc_reference(brick_uri, product, project)
+
+
+def add_brick(ifc, brick, obj=None, namespace=None, brick_class=None, library=None):
+    product = ifc.get_entity(obj)
+    brick_uri = brick.add_brick(product, namespace, brick_class)
+    if library:
+        brick.run_assign_brick_reference(obj=obj, library=library, brick_uri=brick_uri)

src/blenderbim/blenderbim/core/tool.py

@@ -43,6 +43,7 @@ class Blender: pass
 
 @interface
 class Brick:
+    def add_brick(cls, element, namespace, brick_class): pass
     def add_brick_breadcrumb(cls): pass
     def add_brickifc_project(cls, namespace): pass
     def add_brickifc_reference(cls, brick, element, project): pass
@@ -59,6 +60,7 @@ class Brick:
     def import_brick_items(cls, brick_class): pass
     def load_brick_file(cls, filepath): pass
     def pop_brick_breadcrumb(cls): pass
+    def run_assign_brick_reference(cls, obj=None, library=None, brick_uri=None): pass
     def select_browser_item(cls, item): pass
     def set_active_brick_class(cls, brick_class): pass
 

src/blenderbim/blenderbim/tool/brick.py

@@ -33,8 +33,13 @@ except:
 
 class Brick(blenderbim.core.tool.Brick):
     @classmethod
-    def set_user(cls, user):
-        bpy.context.scene.BIMOwnerProperties.active_user_id = user.id()
+    def add_brick(cls, element, namespace, brick_class):
+        ns = Namespace(namespace)
+        brick = ns[element.GlobalId]
+        BrickStore.graph.add((brick, RDF.type, URIRef(brick_class)))
+        if element.Name:
+            BrickStore.graph.add((brick, URIRef("http://www.w3.org/2000/01/rdf-schema#label"), Literal(element.Name)))
+        return str(brick)
 
     @classmethod
     def add_brick_breadcrumb(cls):
@@ -210,6 +215,12 @@ class Brick(blenderbim.core.tool.Brick):
         bpy.context.scene.BIMBrickProperties.brick_breadcrumbs.remove(last_index)
         return name
 
+    @classmethod
+    def run_assign_brick_reference(cls, obj=None, library=None, brick_uri=None):
+        return blenderbim.core.brick.assign_brick_reference(
+            tool.Ifc, tool.Brick, obj=obj, library=library, brick_uri=brick_uri
+        )
+
     @classmethod
     def select_browser_item(cls, item):
         name = item.split("#")[-1]

src/blenderbim/test/bim/feature/brick.feature

@@ -49,3 +49,28 @@ Scenario: Assign brick reference
     And I press "bim.convert_brick_project"
     When I press "bim.assign_brick_reference"
     Then nothing happens
+
+Scenario: Add brick - without a brick IFC library
+    Given an empty IFC project
+    And I add a cube
+    And the object "Cube" is selected
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcChiller"
+    And I press "bim.assign_class"
+    And I press "bim.load_brick_project(filepath='{cwd}/test/files/spaces.ttl')"
+    And the object "IfcChiller/Cube" is selected
+    And I set "scene.BIMBrickProperties.namespace" to "http://example.org/digitaltwin#"
+    When I press "bim.add_brick"
+    Then nothing happens
+
+Scenario: Add brick - with a brick IFC library
+    Given an empty IFC project
+    And I add a cube
+    And the object "Cube" is selected
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcChiller"
+    And I press "bim.assign_class"
+    And I press "bim.load_brick_project(filepath='{cwd}/test/files/spaces.ttl')"
+    And I press "bim.convert_brick_project"
+    And the object "IfcChiller/Cube" is selected
+    And I set "scene.BIMBrickProperties.namespace" to "http://example.org/digitaltwin#"
+    When I press "bim.add_brick"
+    Then nothing happens

src/blenderbim/test/core/test_brick.py

@@ -113,3 +113,16 @@ class TestAssignBrickReference:
         brick.add_brickifc_project("namespace").should_be_called().will_return("project")
         brick.add_brickifc_reference("brick", "product", "project").should_be_called()
         subject.assign_brick_reference(ifc, brick, obj="obj", library="library", brick_uri="brick")
+
+
+class TestAddBrick:
+    def test_adding_a_brick(self, ifc, brick):
+        ifc.get_entity("obj").should_be_called().will_return("product")
+        brick.add_brick("product", "namespace", "brick_class").should_be_called().will_return("brick_uri")
+        subject.add_brick(ifc, brick, obj="obj", namespace="namespace", brick_class="brick_class", library=None)
+
+    def test_adding_a_brick_an_auto_assigning_it_to_the_ifc_element(self, ifc, brick):
+        ifc.get_entity("obj").should_be_called().will_return("product")
+        brick.add_brick("product", "namespace", "brick_class").should_be_called().will_return("brick_uri")
+        brick.run_assign_brick_reference(obj="obj", library="library", brick_uri="brick_uri").should_be_called()
+        subject.add_brick(ifc, brick, obj="obj", namespace="namespace", brick_class="brick_class", library="library")

src/blenderbim/test/files/spaces.ttl

@@ -1,24 +1,24 @@
-@prefix : <ex:#> .
+@prefix digitaltwin: <http://example.org/digitaltwin#> .
 @prefix brick: <https://brickschema.org/schema/Brick#> .
 @prefix unit: <http://qudt.org/vocab/unit/> .
 
-:site a brick:Site ;
+digitaltwin:site a brick:Site ;
     brick:buildingPrimaryFunction [ brick:value "Library" ] ;
-    brick:hasPart :bldg .
+    brick:hasPart digitaltwin:bldg .
 
-:bldg a brick:Building ;
-    brick:hasPart :floor .
+digitaltwin:bldg a brick:Building ;
+    brick:hasPart digitaltwin:floor .
 
-:floor a brick:Floor ;
+digitaltwin:floor a brick:Floor ;
     brick:area [ brick:value 5000 ; brick:hasUnit unit:M_2 ] ;
-    brick:hasPart :space, :hvac_zone, :lighting_zone_1, :lighting_zone_2 .
+    brick:hasPart digitaltwin:space, digitaltwin:hvac_zone, digitaltwin:lighting_zone_1, digitaltwin:lighting_zone_2 .
 
-:space a brick:Space ;
+digitaltwin:space a brick:Space ;
     brick:netArea [ brick:value 500 ; brick:hasUnit unit:M_2 ] ;
     brick:grossArea [ brick:value 650 ; brick:hasUnit unit:M_2 ] ;
-    brick:isPartOf :hvac_zone ;
-    brick:hasPart :lighting_zone_1, :lighting_zone_2 .
+    brick:isPartOf digitaltwin:hvac_zone ;
+    brick:hasPart digitaltwin:lighting_zone_1, digitaltwin:lighting_zone_2 .
 
-:hvac_zone a brick:HVAC_Zone .
-:lighting_zone_1 a brick:Lighting_Zone .
-:lighting_zone_2 a brick:Lighting_Zone .
+digitaltwin:hvac_zone a brick:HVAC_Zone .
+digitaltwin:lighting_zone_1 a brick:Lighting_Zone .
+digitaltwin:lighting_zone_2 a brick:Lighting_Zone .

src/blenderbim/test/tool/test_brick.py

@@ -34,6 +34,28 @@ class TestImplementsTool(NewFile):
         assert isinstance(subject(), blenderbim.core.tool.Brick)
 
 
+class TestAddBrick(NewFile):
+    def test_run(self):
+        ifc = ifcopenshell.file()
+        element = ifc.createIfcChiller()
+        element.Name = "Chiller"
+        element.GlobalId = ifcopenshell.guid.new()
+        BrickStore.graph = brickschema.Graph()
+        result = subject.add_brick(
+            element, "http://example.org/digitaltwin#", "https://brickschema.org/schema/Brick#Equipment"
+        )
+        uri = f"http://example.org/digitaltwin#{element.GlobalId}"
+        assert result == uri
+        assert list(
+            BrickStore.graph.triples((URIRef(uri), RDF.type, URIRef("https://brickschema.org/schema/Brick#Equipment")))
+        )
+        assert list(
+            BrickStore.graph.triples(
+                (URIRef(uri), URIRef("http://www.w3.org/2000/01/rdf-schema#label"), Literal("Chiller"))
+            )
+        )
+
+
 class TestAddBrickBreadcrumb(NewFile):
     def test_run(self):
         subject.set_active_brick_class("brick_class")
@@ -119,11 +141,11 @@ class TestClearProject(NewFile):
 
 class TestExportBrickAttributes(NewFile):
     def test_run(self):
-        assert subject.export_brick_attributes("ex:#floor") == {"Identification": "ex:#floor", "Name": "floor"}
+        assert subject.export_brick_attributes("http://example.org/digitaltwin#floor") == {"Identification": "http://example.org/digitaltwin#floor", "Name": "floor"}
 
     def test_run_ifc2x3(self):
         tool.Ifc.set(ifcopenshell.file(schema="IFC2X3"))
-        assert subject.export_brick_attributes("ex:#floor") == {"ItemReference": "ex:#floor", "Name": "floor"}
+        assert subject.export_brick_attributes("http://example.org/digitaltwin#floor") == {"ItemReference": "http://example.org/digitaltwin#floor", "Name": "floor"}
 
 
 class TestGetBrickPath(NewFile):
@@ -151,22 +173,22 @@ class TestGetBrickifcProject(NewFile):
 class TestGetItemClass(NewFile):
     def test_run(self):
         TestLoadBrickFile().test_run()
-        assert subject.get_item_class("ex:#floor") == "Floor"
+        assert subject.get_item_class("http://example.org/digitaltwin#floor") == "Floor"
 
 
 class TestGetLibraryBrickReference(NewFile):
     def test_run(self):
         ifc = ifcopenshell.file()
         library = ifc.createIfcLibraryInformation()
-        reference = ifc.createIfcLibraryReference(Identification="ex:#floor", ReferencedLibrary=library)
-        assert subject.get_library_brick_reference(library, "ex:#floor") == reference
+        reference = ifc.createIfcLibraryReference(Identification="http://example.org/digitaltwin#floor", ReferencedLibrary=library)
+        assert subject.get_library_brick_reference(library, "http://example.org/digitaltwin#floor") == reference
 
     def test_run_ifc2x3(self):
         ifc = ifcopenshell.file(schema="IFC2X3")
         tool.Ifc.set(ifc)
-        reference = ifc.createIfcLibraryReference(ItemReference="ex:#floor")
+        reference = ifc.createIfcLibraryReference(ItemReference="http://example.org/digitaltwin#floor")
         library = ifc.createIfcLibraryInformation(LibraryReference=[reference])
-        assert subject.get_library_brick_reference(library, "ex:#floor") == reference
+        assert subject.get_library_brick_reference(library, "http://example.org/digitaltwin#floor") == reference
 
 
 class TestGetNamespace(NewFile):
@@ -196,7 +218,7 @@ class TestImportBrickItems(NewFile):
         assert len(bpy.context.scene.BIMBrickProperties.bricks) == 1
         brick = bpy.context.scene.BIMBrickProperties.bricks[0]
         assert brick.name == "bldg"
-        assert brick.uri == "ex:#bldg"
+        assert brick.uri == "http://example.org/digitaltwin#bldg"
         assert brick.total_items == 0
 
 
@@ -224,6 +246,11 @@ class TestPopBrickBreadcrumb(NewFile):
         assert bpy.context.scene.BIMBrickProperties.brick_breadcrumbs[0].name == "foo"
 
 
+class TestRunAssignBrickReference(NewFile):
+    def test_nothing(self):
+        pass
+
+
 class TestSelectBrowserItem(NewFile):
     def test_run(self):
         subject.set_active_brick_class("brick_class")