You can now create a new blank Brick project

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

@@ -27,6 +27,7 @@ classes = (
     operator.ConvertBrickProject,
     operator.ConvertIfcToBrick,
     operator.LoadBrickProject,
+    operator.NewBrickFile,
     operator.RewindBrickClass,
     operator.ViewBrickClass,
     operator.ViewBrickItem,

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

@@ -154,3 +154,12 @@ class ConvertIfcToBrick(bpy.types.Operator, Operator):
         if props.libraries:
             library = tool.Ifc.get().by_id(int(props.libraries))
         core.convert_ifc_to_brick(tool.Brick, namespace=props.namespace, library=library)
+
+
+class NewBrickFile(bpy.types.Operator, Operator):
+    bl_idname = "bim.new_brick_file"
+    bl_label = "New Brick File"
+    bl_options = {"REGISTER", "UNDO"}
+
+    def _execute(self, context):
+        core.new_brick_file(tool.Brick)

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

@@ -35,8 +35,9 @@ class BIM_PT_brickschema(Panel):
         self.props = context.scene.BIMBrickProperties
 
         if not BrickschemaData.data["is_loaded"]:
-            row = self.layout.row()
-            row.operator("bim.load_brick_project")
+            row = self.layout.row(align=True)
+            row.operator("bim.new_brick_file", text="Create Project")
+            row.operator("bim.load_brick_project", text="Load Project")
             return
 
         row = self.layout.row(align=True)

src/blenderbim/blenderbim/core/brick.py

@@ -87,3 +87,7 @@ def convert_ifc_to_brick(brick, namespace=None, library=None):
         if not brick_class:
             continue
         brick.run_add_brick(obj=obj, namespace=namespace, brick_class=brick_class, library=library)
+
+
+def new_brick_file(brick):
+    brick.new_brick_file()

src/blenderbim/blenderbim/core/tool.py

@@ -63,6 +63,7 @@ class Brick:
     def import_brick_classes(cls, brick_class): pass
     def import_brick_items(cls, brick_class): pass
     def load_brick_file(cls, filepath): pass
+    def new_brick_file(cls): pass
     def pop_brick_breadcrumb(cls): pass
     def run_add_brick(cls, obj=None, namespace=None, brick_class=None, library=None): pass
     def run_assign_brick_reference(cls, obj=None, library=None, brick_uri=None): pass

src/blenderbim/blenderbim/tool/brick.py

@@ -248,6 +248,16 @@ class Brick(blenderbim.core.tool.Brick):
         BrickStore.graph = brickschema.Graph().load_file(filepath) + BrickStore.schema
         BrickStore.path = filepath
 
+    @classmethod
+    def new_brick_file(cls):
+        if not BrickStore.schema:
+            BrickStore.schema = brickschema.Graph()
+            cwd = os.path.dirname(os.path.realpath(__file__))
+            schema_path = os.path.join(cwd, "..", "bim", "schema", "Brick.ttl")
+            BrickStore.schema.load_file(schema_path)
+        BrickStore.graph = brickschema.Graph() + BrickStore.schema
+        BrickStore.graph.bind("digitaltwin", Namespace("https://example.org/digitaltwin#"))
+
     @classmethod
     def pop_brick_breadcrumb(cls):
         crumb = bpy.context.scene.BIMBrickProperties.brick_breadcrumbs[-1]

src/blenderbim/test/core/test_brick.py

@@ -151,3 +151,9 @@ class TestConvertIfcToBrick:
         brick.get_convertable_brick_objects_and_elements().should_be_called().will_return([("obj", "element")])
         brick.get_brick_class("element").should_be_called().will_return(None)
         subject.convert_ifc_to_brick(brick, namespace="namespace", library="library")
+
+
+class TestNewBrickFile:
+    def test_run(self, brick):
+        brick.new_brick_file().should_be_called()
+        subject.new_brick_file(brick)

src/blenderbim/test/tool/test_brick.py

@@ -298,6 +298,25 @@ class TestLoadBrickFile(NewFile):
         assert BrickStore.graph
 
 
+class TestNewBrickFile(NewFile):
+    def test_run(self):
+        # We stub the schema to make tests run faster
+        BrickStore.schema = brickschema.Graph()
+        cwd = os.path.dirname(os.path.realpath(__file__))
+        schema_path = os.path.join(cwd, "..", "files", "BrickStub.ttl")
+        BrickStore.schema.load_file(schema_path)
+
+        # This is the actual test
+        ns_alias = "digitaltwin"
+        ns_uri = "https://example.org/digitaltwin#"
+        subject.new_brick_file()
+        assert BrickStore.graph
+        for ns in BrickStore.graph.namespaces():
+            if ns[0] == ns_alias and ns[1].toPython() == ns_uri:
+                return
+        assert False
+
+
 class TestPopBrickBreadcrumb(NewFile):
     def test_run(self):
         bpy.context.scene.BIMBrickProperties.brick_breadcrumbs.add().name = "foo"