godot-docs/classes/class_navigationpolygon.rst

:github_url: hide

.. DO NOT EDIT THIS FILE!!!
.. Generated automatically from Godot engine sources.
.. Generator: https://github.com/godotengine/godot/tree/master/doc/tools/make_rst.py.
.. XML source: https://github.com/godotengine/godot/tree/master/doc/classes/NavigationPolygon.xml.

.. _class_NavigationPolygon:

NavigationPolygon
=================

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

A 2D navigation mesh that describes a traversable surface for pathfinding.

.. rst-class:: classref-introduction-group

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

A navigation mesh can be created either by baking it with the help of the :ref:`NavigationServer2D<class_NavigationServer2D>`, or by adding vertices and convex polygon indices arrays manually.

To bake a navigation mesh at least one outline needs to be added that defines the outer bounds of the baked area.


.. tabs::

 .. code-tab:: gdscript

    var new_navigation_mesh = NavigationPolygon.new()
    var bounding_outline = PackedVector2Array([Vector2(0, 0), Vector2(0, 50), Vector2(50, 50), Vector2(50, 0)])
    new_navigation_mesh.add_outline(bounding_outline)
    NavigationServer2D.bake_from_source_geometry_data(new_navigation_mesh, NavigationMeshSourceGeometryData2D.new());
    $NavigationRegion2D.navigation_polygon = new_navigation_mesh

 .. code-tab:: csharp

    var newNavigationMesh = new NavigationPolygon();
    var boundingOutline = new Vector2[] { new Vector2(0, 0), new Vector2(0, 50), new Vector2(50, 50), new Vector2(50, 0) };
    newNavigationMesh.AddOutline(boundingOutline);
    NavigationServer2D.BakeFromSourceGeometryData(newNavigationMesh, new NavigationMeshSourceGeometryData2D());
    GetNode<NavigationRegion2D>("NavigationRegion2D").NavigationPolygon = newNavigationMesh;



Adding vertices and polygon indices manually.


.. tabs::

 .. code-tab:: gdscript

    var new_navigation_mesh = NavigationPolygon.new()
    var new_vertices = PackedVector2Array([Vector2(0, 0), Vector2(0, 50), Vector2(50, 50), Vector2(50, 0)])
    new_navigation_mesh.vertices = new_vertices
    var new_polygon_indices = PackedInt32Array([0, 1, 2, 3])
    new_navigation_mesh.add_polygon(new_polygon_indices)
    $NavigationRegion2D.navigation_polygon = new_navigation_mesh

 .. code-tab:: csharp

    var newNavigationMesh = new NavigationPolygon();
    var newVertices = new Vector2[] { new Vector2(0, 0), new Vector2(0, 50), new Vector2(50, 50), new Vector2(50, 0) };
    newNavigationMesh.Vertices = newVertices;
    var newPolygonIndices = new int[] { 0, 1, 2, 3 };
    newNavigationMesh.AddPolygon(newPolygonIndices);
    GetNode<NavigationRegion2D>("NavigationRegion2D").NavigationPolygon = newNavigationMesh;



.. rst-class:: classref-introduction-group

Tutorials
---------

- `2D Navigation Demo <https://godotengine.org/asset-library/asset/117>`__

- :doc:`Using NavigationMeshes <../tutorials/navigation/navigation_using_navigationmeshes>`

.. rst-class:: classref-reftable-group

Properties
----------

.. table::
   :widths: auto

   +----------------------------------------------------------------------+------------------------------------------------------------------------------------------------+-------------------------------------------------+
   | :ref:`float<class_float>`                                            | :ref:`agent_radius<class_NavigationPolygon_property_agent_radius>`                             | ``10.0``                                        |
   +----------------------------------------------------------------------+------------------------------------------------------------------------------------------------+-------------------------------------------------+
   | :ref:`Rect2<class_Rect2>`                                            | :ref:`baking_rect<class_NavigationPolygon_property_baking_rect>`                               | ``Rect2(0, 0, 0, 0)``                           |
   +----------------------------------------------------------------------+------------------------------------------------------------------------------------------------+-------------------------------------------------+
   | :ref:`Vector2<class_Vector2>`                                        | :ref:`baking_rect_offset<class_NavigationPolygon_property_baking_rect_offset>`                 | ``Vector2(0, 0)``                               |
   +----------------------------------------------------------------------+------------------------------------------------------------------------------------------------+-------------------------------------------------+
   | :ref:`float<class_float>`                                            | :ref:`border_size<class_NavigationPolygon_property_border_size>`                               | ``0.0``                                         |
   +----------------------------------------------------------------------+------------------------------------------------------------------------------------------------+-------------------------------------------------+
   | :ref:`float<class_float>`                                            | :ref:`cell_size<class_NavigationPolygon_property_cell_size>`                                   | ``1.0``                                         |
   +----------------------------------------------------------------------+------------------------------------------------------------------------------------------------+-------------------------------------------------+
   | :ref:`int<class_int>`                                                | :ref:`parsed_collision_mask<class_NavigationPolygon_property_parsed_collision_mask>`           | ``4294967295``                                  |
   +----------------------------------------------------------------------+------------------------------------------------------------------------------------------------+-------------------------------------------------+
   | :ref:`ParsedGeometryType<enum_NavigationPolygon_ParsedGeometryType>` | :ref:`parsed_geometry_type<class_NavigationPolygon_property_parsed_geometry_type>`             | ``2``                                           |
   +----------------------------------------------------------------------+------------------------------------------------------------------------------------------------+-------------------------------------------------+
   | :ref:`StringName<class_StringName>`                                  | :ref:`source_geometry_group_name<class_NavigationPolygon_property_source_geometry_group_name>` | ``&"navigation_polygon_source_geometry_group"`` |
   +----------------------------------------------------------------------+------------------------------------------------------------------------------------------------+-------------------------------------------------+
   | :ref:`SourceGeometryMode<enum_NavigationPolygon_SourceGeometryMode>` | :ref:`source_geometry_mode<class_NavigationPolygon_property_source_geometry_mode>`             | ``0``                                           |
   +----------------------------------------------------------------------+------------------------------------------------------------------------------------------------+-------------------------------------------------+

.. rst-class:: classref-reftable-group

Methods
-------

.. table::
   :widths: auto

   +-----------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                                | :ref:`add_outline<class_NavigationPolygon_method_add_outline>` **(** :ref:`PackedVector2Array<class_PackedVector2Array>` outline **)**                                                |
   +-----------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                                | :ref:`add_outline_at_index<class_NavigationPolygon_method_add_outline_at_index>` **(** :ref:`PackedVector2Array<class_PackedVector2Array>` outline, :ref:`int<class_int>` index **)** |
   +-----------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                                | :ref:`add_polygon<class_NavigationPolygon_method_add_polygon>` **(** :ref:`PackedInt32Array<class_PackedInt32Array>` polygon **)**                                                    |
   +-----------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                                | :ref:`clear<class_NavigationPolygon_method_clear>` **(** **)**                                                                                                                        |
   +-----------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                                | :ref:`clear_outlines<class_NavigationPolygon_method_clear_outlines>` **(** **)**                                                                                                      |
   +-----------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                                | :ref:`clear_polygons<class_NavigationPolygon_method_clear_polygons>` **(** **)**                                                                                                      |
   +-----------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`NavigationMesh<class_NavigationMesh>`         | :ref:`get_navigation_mesh<class_NavigationPolygon_method_get_navigation_mesh>` **(** **)**                                                                                            |
   +-----------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`PackedVector2Array<class_PackedVector2Array>` | :ref:`get_outline<class_NavigationPolygon_method_get_outline>` **(** :ref:`int<class_int>` idx **)** |const|                                                                          |
   +-----------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`int<class_int>`                               | :ref:`get_outline_count<class_NavigationPolygon_method_get_outline_count>` **(** **)** |const|                                                                                        |
   +-----------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`                             | :ref:`get_parsed_collision_mask_value<class_NavigationPolygon_method_get_parsed_collision_mask_value>` **(** :ref:`int<class_int>` layer_number **)** |const|                         |
   +-----------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`PackedInt32Array<class_PackedInt32Array>`     | :ref:`get_polygon<class_NavigationPolygon_method_get_polygon>` **(** :ref:`int<class_int>` idx **)**                                                                                  |
   +-----------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`int<class_int>`                               | :ref:`get_polygon_count<class_NavigationPolygon_method_get_polygon_count>` **(** **)** |const|                                                                                        |
   +-----------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | :ref:`PackedVector2Array<class_PackedVector2Array>` | :ref:`get_vertices<class_NavigationPolygon_method_get_vertices>` **(** **)** |const|                                                                                                  |
   +-----------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                                | :ref:`make_polygons_from_outlines<class_NavigationPolygon_method_make_polygons_from_outlines>` **(** **)**                                                                            |
   +-----------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                                | :ref:`remove_outline<class_NavigationPolygon_method_remove_outline>` **(** :ref:`int<class_int>` idx **)**                                                                            |
   +-----------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                                | :ref:`set_outline<class_NavigationPolygon_method_set_outline>` **(** :ref:`int<class_int>` idx, :ref:`PackedVector2Array<class_PackedVector2Array>` outline **)**                     |
   +-----------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                                | :ref:`set_parsed_collision_mask_value<class_NavigationPolygon_method_set_parsed_collision_mask_value>` **(** :ref:`int<class_int>` layer_number, :ref:`bool<class_bool>` value **)**  |
   +-----------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
   | void                                                | :ref:`set_vertices<class_NavigationPolygon_method_set_vertices>` **(** :ref:`PackedVector2Array<class_PackedVector2Array>` vertices **)**                                             |
   +-----------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+

.. rst-class:: classref-section-separator

----

.. rst-class:: classref-descriptions-group

Enumerations
------------

.. _enum_NavigationPolygon_ParsedGeometryType:

.. rst-class:: classref-enumeration

enum **ParsedGeometryType**:

.. _class_NavigationPolygon_constant_PARSED_GEOMETRY_MESH_INSTANCES:

.. rst-class:: classref-enumeration-constant

:ref:`ParsedGeometryType<enum_NavigationPolygon_ParsedGeometryType>` **PARSED_GEOMETRY_MESH_INSTANCES** = ``0``

Parses mesh instances as obstruction geometry. This includes :ref:`Polygon2D<class_Polygon2D>`, :ref:`MeshInstance2D<class_MeshInstance2D>`, :ref:`MultiMeshInstance2D<class_MultiMeshInstance2D>`, and :ref:`TileMap<class_TileMap>` nodes.

Meshes are only parsed when they use a 2D vertices surface format.

.. _class_NavigationPolygon_constant_PARSED_GEOMETRY_STATIC_COLLIDERS:

.. rst-class:: classref-enumeration-constant

:ref:`ParsedGeometryType<enum_NavigationPolygon_ParsedGeometryType>` **PARSED_GEOMETRY_STATIC_COLLIDERS** = ``1``

Parses :ref:`StaticBody2D<class_StaticBody2D>` and :ref:`TileMap<class_TileMap>` colliders as obstruction geometry. The collider should be in any of the layers specified by :ref:`parsed_collision_mask<class_NavigationPolygon_property_parsed_collision_mask>`.

.. _class_NavigationPolygon_constant_PARSED_GEOMETRY_BOTH:

.. rst-class:: classref-enumeration-constant

:ref:`ParsedGeometryType<enum_NavigationPolygon_ParsedGeometryType>` **PARSED_GEOMETRY_BOTH** = ``2``

Both :ref:`PARSED_GEOMETRY_MESH_INSTANCES<class_NavigationPolygon_constant_PARSED_GEOMETRY_MESH_INSTANCES>` and :ref:`PARSED_GEOMETRY_STATIC_COLLIDERS<class_NavigationPolygon_constant_PARSED_GEOMETRY_STATIC_COLLIDERS>`.

.. _class_NavigationPolygon_constant_PARSED_GEOMETRY_MAX:

.. rst-class:: classref-enumeration-constant

:ref:`ParsedGeometryType<enum_NavigationPolygon_ParsedGeometryType>` **PARSED_GEOMETRY_MAX** = ``3``

Represents the size of the :ref:`ParsedGeometryType<enum_NavigationPolygon_ParsedGeometryType>` enum.

.. rst-class:: classref-item-separator

----

.. _enum_NavigationPolygon_SourceGeometryMode:

.. rst-class:: classref-enumeration

enum **SourceGeometryMode**:

.. _class_NavigationPolygon_constant_SOURCE_GEOMETRY_ROOT_NODE_CHILDREN:

.. rst-class:: classref-enumeration-constant

:ref:`SourceGeometryMode<enum_NavigationPolygon_SourceGeometryMode>` **SOURCE_GEOMETRY_ROOT_NODE_CHILDREN** = ``0``

Scans the child nodes of the root node recursively for geometry.

.. _class_NavigationPolygon_constant_SOURCE_GEOMETRY_GROUPS_WITH_CHILDREN:

.. rst-class:: classref-enumeration-constant

:ref:`SourceGeometryMode<enum_NavigationPolygon_SourceGeometryMode>` **SOURCE_GEOMETRY_GROUPS_WITH_CHILDREN** = ``1``

Scans nodes in a group and their child nodes recursively for geometry. The group is specified by :ref:`source_geometry_group_name<class_NavigationPolygon_property_source_geometry_group_name>`.

.. _class_NavigationPolygon_constant_SOURCE_GEOMETRY_GROUPS_EXPLICIT:

.. rst-class:: classref-enumeration-constant

:ref:`SourceGeometryMode<enum_NavigationPolygon_SourceGeometryMode>` **SOURCE_GEOMETRY_GROUPS_EXPLICIT** = ``2``

Uses nodes in a group for geometry. The group is specified by :ref:`source_geometry_group_name<class_NavigationPolygon_property_source_geometry_group_name>`.

.. _class_NavigationPolygon_constant_SOURCE_GEOMETRY_MAX:

.. rst-class:: classref-enumeration-constant

:ref:`SourceGeometryMode<enum_NavigationPolygon_SourceGeometryMode>` **SOURCE_GEOMETRY_MAX** = ``3``

Represents the size of the :ref:`SourceGeometryMode<enum_NavigationPolygon_SourceGeometryMode>` enum.

.. rst-class:: classref-section-separator

----

.. rst-class:: classref-descriptions-group

Property Descriptions
---------------------

.. _class_NavigationPolygon_property_agent_radius:

.. rst-class:: classref-property

:ref:`float<class_float>` **agent_radius** = ``10.0``

.. rst-class:: classref-property-setget

- void **set_agent_radius** **(** :ref:`float<class_float>` value **)**
- :ref:`float<class_float>` **get_agent_radius** **(** **)**

The distance to erode/shrink the walkable surface when baking the navigation mesh.

.. rst-class:: classref-item-separator

----

.. _class_NavigationPolygon_property_baking_rect:

.. rst-class:: classref-property

:ref:`Rect2<class_Rect2>` **baking_rect** = ``Rect2(0, 0, 0, 0)``

.. rst-class:: classref-property-setget

- void **set_baking_rect** **(** :ref:`Rect2<class_Rect2>` value **)**
- :ref:`Rect2<class_Rect2>` **get_baking_rect** **(** **)**

If the baking :ref:`Rect2<class_Rect2>` has an area the navigation mesh baking will be restricted to its enclosing area.

.. rst-class:: classref-item-separator

----

.. _class_NavigationPolygon_property_baking_rect_offset:

.. rst-class:: classref-property

:ref:`Vector2<class_Vector2>` **baking_rect_offset** = ``Vector2(0, 0)``

.. rst-class:: classref-property-setget

- void **set_baking_rect_offset** **(** :ref:`Vector2<class_Vector2>` value **)**
- :ref:`Vector2<class_Vector2>` **get_baking_rect_offset** **(** **)**

The position offset applied to the :ref:`baking_rect<class_NavigationPolygon_property_baking_rect>` :ref:`Rect2<class_Rect2>`.

.. rst-class:: classref-item-separator

----

.. _class_NavigationPolygon_property_border_size:

.. rst-class:: classref-property

:ref:`float<class_float>` **border_size** = ``0.0``

.. rst-class:: classref-property-setget

- void **set_border_size** **(** :ref:`float<class_float>` value **)**
- :ref:`float<class_float>` **get_border_size** **(** **)**

The size of the non-navigable border around the bake bounding area defined by the :ref:`baking_rect<class_NavigationPolygon_property_baking_rect>` :ref:`Rect2<class_Rect2>`.

In conjunction with the :ref:`baking_rect<class_NavigationPolygon_property_baking_rect>` the border size can be used to bake tile aligned navigation meshes without the tile edges being shrunk by :ref:`agent_radius<class_NavigationPolygon_property_agent_radius>`.

.. rst-class:: classref-item-separator

----

.. _class_NavigationPolygon_property_cell_size:

.. rst-class:: classref-property

:ref:`float<class_float>` **cell_size** = ``1.0``

.. rst-class:: classref-property-setget

- void **set_cell_size** **(** :ref:`float<class_float>` value **)**
- :ref:`float<class_float>` **get_cell_size** **(** **)**

The cell size used to rasterize the navigation mesh vertices. Must match with the cell size on the navigation map.

.. rst-class:: classref-item-separator

----

.. _class_NavigationPolygon_property_parsed_collision_mask:

.. rst-class:: classref-property

:ref:`int<class_int>` **parsed_collision_mask** = ``4294967295``

.. rst-class:: classref-property-setget

- void **set_parsed_collision_mask** **(** :ref:`int<class_int>` value **)**
- :ref:`int<class_int>` **get_parsed_collision_mask** **(** **)**

The physics layers to scan for static colliders.

Only used when :ref:`parsed_geometry_type<class_NavigationPolygon_property_parsed_geometry_type>` is :ref:`PARSED_GEOMETRY_STATIC_COLLIDERS<class_NavigationPolygon_constant_PARSED_GEOMETRY_STATIC_COLLIDERS>` or :ref:`PARSED_GEOMETRY_BOTH<class_NavigationPolygon_constant_PARSED_GEOMETRY_BOTH>`.

.. rst-class:: classref-item-separator

----

.. _class_NavigationPolygon_property_parsed_geometry_type:

.. rst-class:: classref-property

:ref:`ParsedGeometryType<enum_NavigationPolygon_ParsedGeometryType>` **parsed_geometry_type** = ``2``

.. rst-class:: classref-property-setget

- void **set_parsed_geometry_type** **(** :ref:`ParsedGeometryType<enum_NavigationPolygon_ParsedGeometryType>` value **)**
- :ref:`ParsedGeometryType<enum_NavigationPolygon_ParsedGeometryType>` **get_parsed_geometry_type** **(** **)**

Determines which type of nodes will be parsed as geometry. See :ref:`ParsedGeometryType<enum_NavigationPolygon_ParsedGeometryType>` for possible values.

.. rst-class:: classref-item-separator

----

.. _class_NavigationPolygon_property_source_geometry_group_name:

.. rst-class:: classref-property

:ref:`StringName<class_StringName>` **source_geometry_group_name** = ``&"navigation_polygon_source_geometry_group"``

.. rst-class:: classref-property-setget

- void **set_source_geometry_group_name** **(** :ref:`StringName<class_StringName>` value **)**
- :ref:`StringName<class_StringName>` **get_source_geometry_group_name** **(** **)**

The group name of nodes that should be parsed for baking source geometry.

Only used when :ref:`source_geometry_mode<class_NavigationPolygon_property_source_geometry_mode>` is :ref:`SOURCE_GEOMETRY_GROUPS_WITH_CHILDREN<class_NavigationPolygon_constant_SOURCE_GEOMETRY_GROUPS_WITH_CHILDREN>` or :ref:`SOURCE_GEOMETRY_GROUPS_EXPLICIT<class_NavigationPolygon_constant_SOURCE_GEOMETRY_GROUPS_EXPLICIT>`.

.. rst-class:: classref-item-separator

----

.. _class_NavigationPolygon_property_source_geometry_mode:

.. rst-class:: classref-property

:ref:`SourceGeometryMode<enum_NavigationPolygon_SourceGeometryMode>` **source_geometry_mode** = ``0``

.. rst-class:: classref-property-setget

- void **set_source_geometry_mode** **(** :ref:`SourceGeometryMode<enum_NavigationPolygon_SourceGeometryMode>` value **)**
- :ref:`SourceGeometryMode<enum_NavigationPolygon_SourceGeometryMode>` **get_source_geometry_mode** **(** **)**

The source of the geometry used when baking. See :ref:`SourceGeometryMode<enum_NavigationPolygon_SourceGeometryMode>` for possible values.

.. rst-class:: classref-section-separator

----

.. rst-class:: classref-descriptions-group

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

.. _class_NavigationPolygon_method_add_outline:

.. rst-class:: classref-method

void **add_outline** **(** :ref:`PackedVector2Array<class_PackedVector2Array>` outline **)**

Appends a :ref:`PackedVector2Array<class_PackedVector2Array>` that contains the vertices of an outline to the internal array that contains all the outlines.

.. rst-class:: classref-item-separator

----

.. _class_NavigationPolygon_method_add_outline_at_index:

.. rst-class:: classref-method

void **add_outline_at_index** **(** :ref:`PackedVector2Array<class_PackedVector2Array>` outline, :ref:`int<class_int>` index **)**

Adds a :ref:`PackedVector2Array<class_PackedVector2Array>` that contains the vertices of an outline to the internal array that contains all the outlines at a fixed position.

.. rst-class:: classref-item-separator

----

.. _class_NavigationPolygon_method_add_polygon:

.. rst-class:: classref-method

void **add_polygon** **(** :ref:`PackedInt32Array<class_PackedInt32Array>` polygon **)**

Adds a polygon using the indices of the vertices you get when calling :ref:`get_vertices<class_NavigationPolygon_method_get_vertices>`.

.. rst-class:: classref-item-separator

----

.. _class_NavigationPolygon_method_clear:

.. rst-class:: classref-method

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

Clears the internal arrays for vertices and polygon indices.

.. rst-class:: classref-item-separator

----

.. _class_NavigationPolygon_method_clear_outlines:

.. rst-class:: classref-method

void **clear_outlines** **(** **)**

Clears the array of the outlines, but it doesn't clear the vertices and the polygons that were created by them.

.. rst-class:: classref-item-separator

----

.. _class_NavigationPolygon_method_clear_polygons:

.. rst-class:: classref-method

void **clear_polygons** **(** **)**

Clears the array of polygons, but it doesn't clear the array of outlines and vertices.

.. rst-class:: classref-item-separator

----

.. _class_NavigationPolygon_method_get_navigation_mesh:

.. rst-class:: classref-method

:ref:`NavigationMesh<class_NavigationMesh>` **get_navigation_mesh** **(** **)**

Returns the :ref:`NavigationMesh<class_NavigationMesh>` resulting from this navigation polygon. This navigation mesh can be used to update the navigation mesh of a region with the :ref:`NavigationServer3D.region_set_navigation_mesh<class_NavigationServer3D_method_region_set_navigation_mesh>` API directly (as 2D uses the 3D server behind the scene).

.. rst-class:: classref-item-separator

----

.. _class_NavigationPolygon_method_get_outline:

.. rst-class:: classref-method

:ref:`PackedVector2Array<class_PackedVector2Array>` **get_outline** **(** :ref:`int<class_int>` idx **)** |const|

Returns a :ref:`PackedVector2Array<class_PackedVector2Array>` containing the vertices of an outline that was created in the editor or by script.

.. rst-class:: classref-item-separator

----

.. _class_NavigationPolygon_method_get_outline_count:

.. rst-class:: classref-method

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

Returns the number of outlines that were created in the editor or by script.

.. rst-class:: classref-item-separator

----

.. _class_NavigationPolygon_method_get_parsed_collision_mask_value:

.. rst-class:: classref-method

:ref:`bool<class_bool>` **get_parsed_collision_mask_value** **(** :ref:`int<class_int>` layer_number **)** |const|

Returns whether or not the specified layer of the :ref:`parsed_collision_mask<class_NavigationPolygon_property_parsed_collision_mask>` is enabled, given a ``layer_number`` between 1 and 32.

.. rst-class:: classref-item-separator

----

.. _class_NavigationPolygon_method_get_polygon:

.. rst-class:: classref-method

:ref:`PackedInt32Array<class_PackedInt32Array>` **get_polygon** **(** :ref:`int<class_int>` idx **)**

Returns a :ref:`PackedInt32Array<class_PackedInt32Array>` containing the indices of the vertices of a created polygon.

.. rst-class:: classref-item-separator

----

.. _class_NavigationPolygon_method_get_polygon_count:

.. rst-class:: classref-method

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

Returns the count of all polygons.

.. rst-class:: classref-item-separator

----

.. _class_NavigationPolygon_method_get_vertices:

.. rst-class:: classref-method

:ref:`PackedVector2Array<class_PackedVector2Array>` **get_vertices** **(** **)** |const|

Returns a :ref:`PackedVector2Array<class_PackedVector2Array>` containing all the vertices being used to create the polygons.

.. rst-class:: classref-item-separator

----

.. _class_NavigationPolygon_method_make_polygons_from_outlines:

.. rst-class:: classref-method

void **make_polygons_from_outlines** **(** **)**

Creates polygons from the outlines added in the editor or by script.

\ *Deprecated.* This function is deprecated, and might be removed in a future release. Use :ref:`NavigationServer2D.parse_source_geometry_data<class_NavigationServer2D_method_parse_source_geometry_data>` and :ref:`NavigationServer2D.bake_from_source_geometry_data<class_NavigationServer2D_method_bake_from_source_geometry_data>` instead.

.. rst-class:: classref-item-separator

----

.. _class_NavigationPolygon_method_remove_outline:

.. rst-class:: classref-method

void **remove_outline** **(** :ref:`int<class_int>` idx **)**

Removes an outline created in the editor or by script. You have to call :ref:`make_polygons_from_outlines<class_NavigationPolygon_method_make_polygons_from_outlines>` for the polygons to update.

.. rst-class:: classref-item-separator

----

.. _class_NavigationPolygon_method_set_outline:

.. rst-class:: classref-method

void **set_outline** **(** :ref:`int<class_int>` idx, :ref:`PackedVector2Array<class_PackedVector2Array>` outline **)**

Changes an outline created in the editor or by script. You have to call :ref:`make_polygons_from_outlines<class_NavigationPolygon_method_make_polygons_from_outlines>` for the polygons to update.

.. rst-class:: classref-item-separator

----

.. _class_NavigationPolygon_method_set_parsed_collision_mask_value:

.. rst-class:: classref-method

void **set_parsed_collision_mask_value** **(** :ref:`int<class_int>` layer_number, :ref:`bool<class_bool>` value **)**

Based on ``value``, enables or disables the specified layer in the :ref:`parsed_collision_mask<class_NavigationPolygon_property_parsed_collision_mask>`, given a ``layer_number`` between 1 and 32.

.. rst-class:: classref-item-separator

----

.. _class_NavigationPolygon_method_set_vertices:

.. rst-class:: classref-method

void **set_vertices** **(** :ref:`PackedVector2Array<class_PackedVector2Array>` vertices **)**

Sets the vertices that can be then indexed to create polygons with the :ref:`add_polygon<class_NavigationPolygon_method_add_polygon>` method.

.. |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.)`
.. |bitfield| replace:: :abbr:`BitField (This value is an integer composed as a bitmask of the following flags.)`