full WIP parent operator

utils.py

@@ -91,6 +91,27 @@ def ray_cast_point(point, origin, depsgraph):
     return object_hit, np.array(hit_location), tri, tri_indices
 
 
+def empty_at(name='Empty', pos=(0,0,0), collection=None, type='PLAIN_AXES', size=1, show_name=False):
+    '''
+    Create an empty at given Vector3 position.
+    Optional type (default 'PLAIN_AXES') in ,'ARROWS','SINGLE_ARROW','CIRCLE','CUBE','SPHERE','CONE','IMAGE'
+    default size is 1.0
+    '''
+    
+    mire = bpy.data.objects.get(name)
+    if not mire:
+        mire = bpy.data.objects.new(name, None)
+    if collection is None:
+        collection = bpy.context.collection
+    if mire.name not in collection.all_objects:
+        collection.objects.link(mire)
+
+    mire.location = pos
+    mire.empty_display_type = type
+    mire.empty_display_size = size
+    mire.show_name = show_name
+    return mire
+
 def plane_on_bone(bone, arm=None, cam=None, set_rotation=True, mesh=True):
     '''
     bone (posebone): reference pose bone