Add docs for users to create stubs

docs/builddocs.rst

@@ -97,3 +97,22 @@ Open ``docs/_out/html/index.html`` in a web browser to preview the docs.
 .. code-block:: bash
 
     google-chrome docs/_out/html/index.html
+
+
+Create Python stubs (type hints) for type checking and autocomplete
+-------------------------------------------------------------------
+
+You can get type checking and auto-complete features in editors and IDES (e.g.
+ VS Code, PyCharm, etc.) using type hints produced from Open3D. These can be
+ created with the pybind11-stubgen tool and placed alongside the Open3D files:
+
+.. code-block:: bash
+
+    # Install open3d and pybind11-stubgen
+    pip install pybind11-stubgen open3d
+    # Print location of install open3d library
+    pip show open3d
+    # This outputs a line like: 
+    # Location: path/to/venv/site-packages
+    # Create stubs and place them next to Open3D files
+    pybind11-stubgen -o <path/to/venv/site-packages/> --root-suffix "" open3d

examples/python/benchmark/benchmark_fgr.py

@@ -8,6 +8,7 @@
 import os
 import sys
 import numpy as np
+import open3d as o3d
 
 pyexample_path = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 sys.path.append(pyexample_path)

examples/python/benchmark/benchmark_pre.py

@@ -8,6 +8,7 @@
 import os
 import sys
 import pickle
+import open3d as o3d
 
 pyexample_path = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 sys.path.append(pyexample_path)

examples/python/benchmark/benchmark_ransac.py

@@ -8,6 +8,7 @@
 import os
 import sys
 import numpy as np
+import open3d as o3d
 
 pyexample_path = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 sys.path.append(pyexample_path)

examples/python/benchmark/benchmark_tsdf.py

@@ -5,11 +5,11 @@
 # SPDX-License-Identifier: MIT
 # ----------------------------------------------------------------------------
 
-import open3d as o3d
 import numpy as np
 import time
 import os
 import sys
+import open3d as o3d
 
 pyexample_path = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 sys.path.append(pyexample_path)