You can now split objects using a drawn edge, especially useful when creating slab pour breaks and fixing lazily modeled walls and columns. Thanks Gorgious56!

src/blenderbim/test/bim/feature/misc.feature

@@ -35,3 +35,16 @@ Scenario: Resize to storey
     And I press "bim.assign_container(structure={storey})"
     When I press "bim.resize_to_storey"
     Then nothing happens
+
+Scenario: Split along edge
+    Given an empty IFC project
+    And I add a cube
+    And the object "Cube" is selected
+    And I set "scene.BIMRootProperties.ifc_class" to "IfcWall"
+    And I press "bim.assign_class"
+    And I add a plane of size "4" at "0,0,0"
+    And the object "IfcWall/Cube" is selected
+    And additionally the object "Plane" is selected
+    When I press "bim.split_along_edge"
+    Then the object "IfcWall/Cube" is an "IfcWall"
+    And the object "IfcWall/Cube.001" is an "IfcWall"

src/blenderbim/test/bim/test_feature.py

@@ -105,6 +105,12 @@ def i_add_a_cube_of_size_size_at_location(size, location):
     bpy.ops.mesh.primitive_cube_add(size=float(size), location=[float(co) for co in location.split(",")])
 
 
+@given(parsers.parse('I add a plane of size "{size}" at "{location}"'))
+@when(parsers.parse('I add a plane of size "{size}" at "{location}"'))
+def i_add_a_plane_of_size_size_at_location(size, location):
+    bpy.ops.mesh.primitive_plane_add(size=float(size), location=[float(co) for co in location.split(",")])
+
+
 @given(parsers.parse('I press "{operator}"'))
 @when(parsers.parse('I press "{operator}"'))
 def i_press_operator(operator):

src/blenderbim/test/core/test_misc.py

@@ -39,3 +39,11 @@ class TestResizeToStorey:
         misc.get_object_storey("obj").should_be_called().will_return("storey")
         misc.get_storey_height_in_si("storey").should_be_called().will_return(None)
         subject.resize_to_storey(misc, obj="obj")
+
+
+class TestSplitAlongEdge:
+    def test_run(self, misc):
+        misc.split_objects_with_cutter(["obj"], "cutter").should_be_called().will_return(["new_obj"])
+        misc.run_root_copy_class(obj="new_obj").should_be_called()
+        misc.mark_object_as_edited("obj").should_be_called()
+        subject.split_along_edge(misc, cutter="cutter", objs=["obj"])

src/blenderbim/test/tool/test_misc.py

@@ -134,6 +134,11 @@ class TestMoveObjectToElevation(test.bim.bootstrap.NewFile):
         assert list(obj.matrix_world.translation) == [0.0, 0.0, 3.0]
 
 
+class TestRunRootCopyClass(test.bim.bootstrap.NewFile):
+    def test_nothing(self):
+        pass
+
+
 class TestScaleObjectToHeight(test.bim.bootstrap.NewFile):
     def test_run(self):
         bpy.ops.mesh.primitive_cube_add()
@@ -149,3 +154,16 @@ class TestMarkObjectAsEdited(test.bim.bootstrap.NewFile):
         obj = bpy.data.objects.new("Cube", None)
         subject.mark_object_as_edited(obj)
         assert obj in IfcStore.edited_objs
+
+
+class TestSplitObjectsWithCutter(test.bim.bootstrap.NewFile):
+    def test_run(self):
+        bpy.ops.mesh.primitive_cube_add()
+        bpy.ops.mesh.primitive_plane_add(size=4)
+        obj = bpy.data.objects.get("Cube")
+        cutter = bpy.data.objects.get("Plane")
+        assert obj.dimensions[2] == 2
+        new_objs = subject.split_objects_with_cutter([obj], cutter)
+        assert new_objs[0].name == "Cube.001"
+        assert obj.dimensions[2] == 1
+        assert new_objs[0].dimensions[2] == 1