godot-docs/classes/class_meshdatatool.rst

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.. _class_MeshDataTool:

MeshDataTool
============

**Inherits:** :ref:`RefCounted<class_RefCounted>` **<** :ref:`Object<class_Object>`

Helper tool to access and edit :ref:`Mesh<class_Mesh>` data.

Description
-----------

MeshDataTool provides access to individual vertices in a :ref:`Mesh<class_Mesh>`. It allows users to read and edit vertex data of meshes. It also creates an array of faces and edges.

To use MeshDataTool, load a mesh with :ref:`create_from_surface<class_MeshDataTool_method_create_from_surface>`. When you are finished editing the data commit the data to a mesh with :ref:`commit_to_surface<class_MeshDataTool_method_commit_to_surface>`.

Below is an example of how MeshDataTool may be used.


.. tabs::

 .. code-tab:: gdscript

    var mesh = ArrayMesh.new()
    mesh.add_surface_from_arrays(Mesh.PRIMITIVE_TRIANGLES, BoxMesh.new().get_mesh_arrays())
    var mdt = MeshDataTool.new()
    mdt.create_from_surface(mesh, 0)
    for i in range(mdt.get_vertex_count()):
        var vertex = mdt.get_vertex(i)
        # In this example we extend the mesh by one unit, which results in separated faces as it is flat shaded.
        vertex += mdt.get_vertex_normal(i)
        # Save your change.
        mdt.set_vertex(i, vertex)
    mesh.surface_remove(0)
    mdt.commit_to_surface(mesh)
    var mi = MeshInstance.new()
    mi.mesh = mesh
    add_child(mi)

 .. code-tab:: csharp

    var mesh = new ArrayMesh();
    mesh.AddSurfaceFromArrays(Mesh.PrimitiveType.Triangles, new BoxMesh().GetMeshArrays());
    var mdt = new MeshDataTool();
    mdt.CreateFromSurface(mesh, 0);
    for (var i = 0; i < mdt.GetVertexCount(); i++)
    {
        Vector3 vertex = mdt.GetVertex(i);
        // In this example we extend the mesh by one unit, which results in separated faces as it is flat shaded.
        vertex += mdt.GetVertexNormal(i);
        // Save your change.
        mdt.SetVertex(i, vertex);
    }
    mesh.SurfaceRemove(0);
    mdt.CommitToSurface(mesh);
    var mi = new MeshInstance();
    mi.Mesh = mesh;
    AddChild(mi);



See also :ref:`ArrayMesh<class_ArrayMesh>`, :ref:`ImmediateMesh<class_ImmediateMesh>` and :ref:`SurfaceTool<class_SurfaceTool>` for procedural geometry generation.

\ **Note:** Godot uses clockwise `winding order <https://learnopengl.com/Advanced-OpenGL/Face-culling>`__ for front faces of triangle primitive modes.

Methods
-------

+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void                                                | :ref:`clear<class_MeshDataTool_method_clear>` **(** **)**                                                                                                                  |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Error<enum_@GlobalScope_Error>`               | :ref:`commit_to_surface<class_MeshDataTool_method_commit_to_surface>` **(** :ref:`ArrayMesh<class_ArrayMesh>` mesh **)**                                                   |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Error<enum_@GlobalScope_Error>`               | :ref:`create_from_surface<class_MeshDataTool_method_create_from_surface>` **(** :ref:`ArrayMesh<class_ArrayMesh>` mesh, :ref:`int<class_int>` surface **)**                |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>`                               | :ref:`get_edge_count<class_MeshDataTool_method_get_edge_count>` **(** **)** |const|                                                                                        |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`PackedInt32Array<class_PackedInt32Array>`     | :ref:`get_edge_faces<class_MeshDataTool_method_get_edge_faces>` **(** :ref:`int<class_int>` idx **)** |const|                                                              |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Variant<class_Variant>`                       | :ref:`get_edge_meta<class_MeshDataTool_method_get_edge_meta>` **(** :ref:`int<class_int>` idx **)** |const|                                                                |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>`                               | :ref:`get_edge_vertex<class_MeshDataTool_method_get_edge_vertex>` **(** :ref:`int<class_int>` idx, :ref:`int<class_int>` vertex **)** |const|                              |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>`                               | :ref:`get_face_count<class_MeshDataTool_method_get_face_count>` **(** **)** |const|                                                                                        |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>`                               | :ref:`get_face_edge<class_MeshDataTool_method_get_face_edge>` **(** :ref:`int<class_int>` idx, :ref:`int<class_int>` edge **)** |const|                                    |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Variant<class_Variant>`                       | :ref:`get_face_meta<class_MeshDataTool_method_get_face_meta>` **(** :ref:`int<class_int>` idx **)** |const|                                                                |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Vector3<class_Vector3>`                       | :ref:`get_face_normal<class_MeshDataTool_method_get_face_normal>` **(** :ref:`int<class_int>` idx **)** |const|                                                            |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>`                               | :ref:`get_face_vertex<class_MeshDataTool_method_get_face_vertex>` **(** :ref:`int<class_int>` idx, :ref:`int<class_int>` vertex **)** |const|                              |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>`                               | :ref:`get_format<class_MeshDataTool_method_get_format>` **(** **)** |const|                                                                                                |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Material<class_Material>`                     | :ref:`get_material<class_MeshDataTool_method_get_material>` **(** **)** |const|                                                                                            |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Vector3<class_Vector3>`                       | :ref:`get_vertex<class_MeshDataTool_method_get_vertex>` **(** :ref:`int<class_int>` idx **)** |const|                                                                      |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`PackedInt32Array<class_PackedInt32Array>`     | :ref:`get_vertex_bones<class_MeshDataTool_method_get_vertex_bones>` **(** :ref:`int<class_int>` idx **)** |const|                                                          |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Color<class_Color>`                           | :ref:`get_vertex_color<class_MeshDataTool_method_get_vertex_color>` **(** :ref:`int<class_int>` idx **)** |const|                                                          |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>`                               | :ref:`get_vertex_count<class_MeshDataTool_method_get_vertex_count>` **(** **)** |const|                                                                                    |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`PackedInt32Array<class_PackedInt32Array>`     | :ref:`get_vertex_edges<class_MeshDataTool_method_get_vertex_edges>` **(** :ref:`int<class_int>` idx **)** |const|                                                          |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`PackedInt32Array<class_PackedInt32Array>`     | :ref:`get_vertex_faces<class_MeshDataTool_method_get_vertex_faces>` **(** :ref:`int<class_int>` idx **)** |const|                                                          |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Variant<class_Variant>`                       | :ref:`get_vertex_meta<class_MeshDataTool_method_get_vertex_meta>` **(** :ref:`int<class_int>` idx **)** |const|                                                            |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Vector3<class_Vector3>`                       | :ref:`get_vertex_normal<class_MeshDataTool_method_get_vertex_normal>` **(** :ref:`int<class_int>` idx **)** |const|                                                        |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Plane<class_Plane>`                           | :ref:`get_vertex_tangent<class_MeshDataTool_method_get_vertex_tangent>` **(** :ref:`int<class_int>` idx **)** |const|                                                      |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Vector2<class_Vector2>`                       | :ref:`get_vertex_uv<class_MeshDataTool_method_get_vertex_uv>` **(** :ref:`int<class_int>` idx **)** |const|                                                                |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Vector2<class_Vector2>`                       | :ref:`get_vertex_uv2<class_MeshDataTool_method_get_vertex_uv2>` **(** :ref:`int<class_int>` idx **)** |const|                                                              |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`PackedFloat32Array<class_PackedFloat32Array>` | :ref:`get_vertex_weights<class_MeshDataTool_method_get_vertex_weights>` **(** :ref:`int<class_int>` idx **)** |const|                                                      |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void                                                | :ref:`set_edge_meta<class_MeshDataTool_method_set_edge_meta>` **(** :ref:`int<class_int>` idx, :ref:`Variant<class_Variant>` meta **)**                                    |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void                                                | :ref:`set_face_meta<class_MeshDataTool_method_set_face_meta>` **(** :ref:`int<class_int>` idx, :ref:`Variant<class_Variant>` meta **)**                                    |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void                                                | :ref:`set_material<class_MeshDataTool_method_set_material>` **(** :ref:`Material<class_Material>` material **)**                                                           |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void                                                | :ref:`set_vertex<class_MeshDataTool_method_set_vertex>` **(** :ref:`int<class_int>` idx, :ref:`Vector3<class_Vector3>` vertex **)**                                        |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void                                                | :ref:`set_vertex_bones<class_MeshDataTool_method_set_vertex_bones>` **(** :ref:`int<class_int>` idx, :ref:`PackedInt32Array<class_PackedInt32Array>` bones **)**           |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void                                                | :ref:`set_vertex_color<class_MeshDataTool_method_set_vertex_color>` **(** :ref:`int<class_int>` idx, :ref:`Color<class_Color>` color **)**                                 |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void                                                | :ref:`set_vertex_meta<class_MeshDataTool_method_set_vertex_meta>` **(** :ref:`int<class_int>` idx, :ref:`Variant<class_Variant>` meta **)**                                |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void                                                | :ref:`set_vertex_normal<class_MeshDataTool_method_set_vertex_normal>` **(** :ref:`int<class_int>` idx, :ref:`Vector3<class_Vector3>` normal **)**                          |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void                                                | :ref:`set_vertex_tangent<class_MeshDataTool_method_set_vertex_tangent>` **(** :ref:`int<class_int>` idx, :ref:`Plane<class_Plane>` tangent **)**                           |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void                                                | :ref:`set_vertex_uv<class_MeshDataTool_method_set_vertex_uv>` **(** :ref:`int<class_int>` idx, :ref:`Vector2<class_Vector2>` uv **)**                                      |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void                                                | :ref:`set_vertex_uv2<class_MeshDataTool_method_set_vertex_uv2>` **(** :ref:`int<class_int>` idx, :ref:`Vector2<class_Vector2>` uv2 **)**                                   |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void                                                | :ref:`set_vertex_weights<class_MeshDataTool_method_set_vertex_weights>` **(** :ref:`int<class_int>` idx, :ref:`PackedFloat32Array<class_PackedFloat32Array>` weights **)** |
+-----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+

Method Descriptions
-------------------

.. _class_MeshDataTool_method_clear:

- void **clear** **(** **)**

Clears all data currently in MeshDataTool.

----

.. _class_MeshDataTool_method_commit_to_surface:

- :ref:`Error<enum_@GlobalScope_Error>` **commit_to_surface** **(** :ref:`ArrayMesh<class_ArrayMesh>` mesh **)**

Adds a new surface to specified :ref:`Mesh<class_Mesh>` with edited data.

----

.. _class_MeshDataTool_method_create_from_surface:

- :ref:`Error<enum_@GlobalScope_Error>` **create_from_surface** **(** :ref:`ArrayMesh<class_ArrayMesh>` mesh, :ref:`int<class_int>` surface **)**

Uses specified surface of given :ref:`Mesh<class_Mesh>` to populate data for MeshDataTool.

Requires :ref:`Mesh<class_Mesh>` with primitive type :ref:`Mesh.PRIMITIVE_TRIANGLES<class_Mesh_constant_PRIMITIVE_TRIANGLES>`.

----

.. _class_MeshDataTool_method_get_edge_count:

- :ref:`int<class_int>` **get_edge_count** **(** **)** |const|

Returns the number of edges in this :ref:`Mesh<class_Mesh>`.

----

.. _class_MeshDataTool_method_get_edge_faces:

- :ref:`PackedInt32Array<class_PackedInt32Array>` **get_edge_faces** **(** :ref:`int<class_int>` idx **)** |const|

Returns array of faces that touch given edge.

----

.. _class_MeshDataTool_method_get_edge_meta:

- :ref:`Variant<class_Variant>` **get_edge_meta** **(** :ref:`int<class_int>` idx **)** |const|

Returns meta information assigned to given edge.

----

.. _class_MeshDataTool_method_get_edge_vertex:

- :ref:`int<class_int>` **get_edge_vertex** **(** :ref:`int<class_int>` idx, :ref:`int<class_int>` vertex **)** |const|

Returns index of specified vertex connected to given edge.

Vertex argument can only be 0 or 1 because edges are comprised of two vertices.

----

.. _class_MeshDataTool_method_get_face_count:

- :ref:`int<class_int>` **get_face_count** **(** **)** |const|

Returns the number of faces in this :ref:`Mesh<class_Mesh>`.

----

.. _class_MeshDataTool_method_get_face_edge:

- :ref:`int<class_int>` **get_face_edge** **(** :ref:`int<class_int>` idx, :ref:`int<class_int>` edge **)** |const|

Returns specified edge associated with given face.

Edge argument must be either 0, 1, or 2 because a face only has three edges.

----

.. _class_MeshDataTool_method_get_face_meta:

- :ref:`Variant<class_Variant>` **get_face_meta** **(** :ref:`int<class_int>` idx **)** |const|

Returns the metadata associated with the given face.

----

.. _class_MeshDataTool_method_get_face_normal:

- :ref:`Vector3<class_Vector3>` **get_face_normal** **(** :ref:`int<class_int>` idx **)** |const|

Calculates and returns the face normal of the given face.

----

.. _class_MeshDataTool_method_get_face_vertex:

- :ref:`int<class_int>` **get_face_vertex** **(** :ref:`int<class_int>` idx, :ref:`int<class_int>` vertex **)** |const|

Returns the specified vertex of the given face.

Vertex argument must be either 0, 1, or 2 because faces contain three vertices.

----

.. _class_MeshDataTool_method_get_format:

- :ref:`int<class_int>` **get_format** **(** **)** |const|

Returns the :ref:`Mesh<class_Mesh>`'s format. Format is an integer made up of :ref:`Mesh<class_Mesh>` format flags combined together. For example, a mesh containing both vertices and normals would return a format of ``3`` because :ref:`Mesh.ARRAY_FORMAT_VERTEX<class_Mesh_constant_ARRAY_FORMAT_VERTEX>` is ``1`` and :ref:`Mesh.ARRAY_FORMAT_NORMAL<class_Mesh_constant_ARRAY_FORMAT_NORMAL>` is ``2``.

See :ref:`ArrayFormat<enum_Mesh_ArrayFormat>` for a list of format flags.

----

.. _class_MeshDataTool_method_get_material:

- :ref:`Material<class_Material>` **get_material** **(** **)** |const|

Returns the material assigned to the :ref:`Mesh<class_Mesh>`.

----

.. _class_MeshDataTool_method_get_vertex:

- :ref:`Vector3<class_Vector3>` **get_vertex** **(** :ref:`int<class_int>` idx **)** |const|

Returns the vertex at given index.

----

.. _class_MeshDataTool_method_get_vertex_bones:

- :ref:`PackedInt32Array<class_PackedInt32Array>` **get_vertex_bones** **(** :ref:`int<class_int>` idx **)** |const|

Returns the bones of the given vertex.

----

.. _class_MeshDataTool_method_get_vertex_color:

- :ref:`Color<class_Color>` **get_vertex_color** **(** :ref:`int<class_int>` idx **)** |const|

Returns the color of the given vertex.

----

.. _class_MeshDataTool_method_get_vertex_count:

- :ref:`int<class_int>` **get_vertex_count** **(** **)** |const|

Returns the total number of vertices in :ref:`Mesh<class_Mesh>`.

----

.. _class_MeshDataTool_method_get_vertex_edges:

- :ref:`PackedInt32Array<class_PackedInt32Array>` **get_vertex_edges** **(** :ref:`int<class_int>` idx **)** |const|

Returns an array of edges that share the given vertex.

----

.. _class_MeshDataTool_method_get_vertex_faces:

- :ref:`PackedInt32Array<class_PackedInt32Array>` **get_vertex_faces** **(** :ref:`int<class_int>` idx **)** |const|

Returns an array of faces that share the given vertex.

----

.. _class_MeshDataTool_method_get_vertex_meta:

- :ref:`Variant<class_Variant>` **get_vertex_meta** **(** :ref:`int<class_int>` idx **)** |const|

Returns the metadata associated with the given vertex.

----

.. _class_MeshDataTool_method_get_vertex_normal:

- :ref:`Vector3<class_Vector3>` **get_vertex_normal** **(** :ref:`int<class_int>` idx **)** |const|

Returns the normal of the given vertex.

----

.. _class_MeshDataTool_method_get_vertex_tangent:

- :ref:`Plane<class_Plane>` **get_vertex_tangent** **(** :ref:`int<class_int>` idx **)** |const|

Returns the tangent of the given vertex.

----

.. _class_MeshDataTool_method_get_vertex_uv:

- :ref:`Vector2<class_Vector2>` **get_vertex_uv** **(** :ref:`int<class_int>` idx **)** |const|

Returns the UV of the given vertex.

----

.. _class_MeshDataTool_method_get_vertex_uv2:

- :ref:`Vector2<class_Vector2>` **get_vertex_uv2** **(** :ref:`int<class_int>` idx **)** |const|

Returns the UV2 of the given vertex.

----

.. _class_MeshDataTool_method_get_vertex_weights:

- :ref:`PackedFloat32Array<class_PackedFloat32Array>` **get_vertex_weights** **(** :ref:`int<class_int>` idx **)** |const|

Returns bone weights of the given vertex.

----

.. _class_MeshDataTool_method_set_edge_meta:

- void **set_edge_meta** **(** :ref:`int<class_int>` idx, :ref:`Variant<class_Variant>` meta **)**

Sets the metadata of the given edge.

----

.. _class_MeshDataTool_method_set_face_meta:

- void **set_face_meta** **(** :ref:`int<class_int>` idx, :ref:`Variant<class_Variant>` meta **)**

Sets the metadata of the given face.

----

.. _class_MeshDataTool_method_set_material:

- void **set_material** **(** :ref:`Material<class_Material>` material **)**

Sets the material to be used by newly-constructed :ref:`Mesh<class_Mesh>`.

----

.. _class_MeshDataTool_method_set_vertex:

- void **set_vertex** **(** :ref:`int<class_int>` idx, :ref:`Vector3<class_Vector3>` vertex **)**

Sets the position of the given vertex.

----

.. _class_MeshDataTool_method_set_vertex_bones:

- void **set_vertex_bones** **(** :ref:`int<class_int>` idx, :ref:`PackedInt32Array<class_PackedInt32Array>` bones **)**

Sets the bones of the given vertex.

----

.. _class_MeshDataTool_method_set_vertex_color:

- void **set_vertex_color** **(** :ref:`int<class_int>` idx, :ref:`Color<class_Color>` color **)**

Sets the color of the given vertex.

----

.. _class_MeshDataTool_method_set_vertex_meta:

- void **set_vertex_meta** **(** :ref:`int<class_int>` idx, :ref:`Variant<class_Variant>` meta **)**

Sets the metadata associated with the given vertex.

----

.. _class_MeshDataTool_method_set_vertex_normal:

- void **set_vertex_normal** **(** :ref:`int<class_int>` idx, :ref:`Vector3<class_Vector3>` normal **)**

Sets the normal of the given vertex.

----

.. _class_MeshDataTool_method_set_vertex_tangent:

- void **set_vertex_tangent** **(** :ref:`int<class_int>` idx, :ref:`Plane<class_Plane>` tangent **)**

Sets the tangent of the given vertex.

----

.. _class_MeshDataTool_method_set_vertex_uv:

- void **set_vertex_uv** **(** :ref:`int<class_int>` idx, :ref:`Vector2<class_Vector2>` uv **)**

Sets the UV of the given vertex.

----

.. _class_MeshDataTool_method_set_vertex_uv2:

- void **set_vertex_uv2** **(** :ref:`int<class_int>` idx, :ref:`Vector2<class_Vector2>` uv2 **)**

Sets the UV2 of the given vertex.

----

.. _class_MeshDataTool_method_set_vertex_weights:

- void **set_vertex_weights** **(** :ref:`int<class_int>` idx, :ref:`PackedFloat32Array<class_PackedFloat32Array>` weights **)**

Sets the bone weights of the given vertex.

.. |virtual| replace:: :abbr:`virtual (This method should typically be overridden by the user to have any effect.)`
.. |const| replace:: :abbr:`const (This method has no side effects. It doesn't modify any of the instance's member variables.)`
.. |vararg| replace:: :abbr:`vararg (This method accepts any number of arguments after the ones described here.)`
.. |constructor| replace:: :abbr:`constructor (This method is used to construct a type.)`
.. |static| replace:: :abbr:`static (This method doesn't need an instance to be called, so it can be called directly using the class name.)`
.. |operator| replace:: :abbr:`operator (This method describes a valid operator to use with this type as left-hand operand.)`