DecimateModifier(Modifier)
==========================

.. currentmodule:: bpy.types

base classes --- :class:`bpy_struct`, :class:`Modifier`

.. class:: DecimateModifier(Modifier)

   Decimation modifier

   .. attribute:: angle_limit

      Only dissolve angles below this (planar only) (in [0, 3.14159], default 0.0872665)

      :type: float

   .. attribute:: decimate_type

      (default ``'COLLAPSE'``)

      - ``COLLAPSE``
        Collapse -- Use edge collapsing.
      - ``UNSUBDIV``
        Un-Subdivide -- Use un-subdivide face reduction.
      - ``DISSOLVE``
        Planar -- Dissolve geometry to form planar polygons.

      :type: Literal['COLLAPSE', 'UNSUBDIV', 'DISSOLVE']

   .. attribute:: delimit

      Limit merging geometry (default set())

      :type: set[Literal[:ref:`rna_enum_mesh_delimit_mode_items`]]

   .. data:: face_count

      The current number of faces in the decimated mesh (in [-inf, inf], default 0, readonly)

      :type: int

   .. attribute:: invert_vertex_group

      Invert vertex group influence (collapse only) (default False)

      :type: bool

   .. attribute:: iterations

      Number of times reduce the geometry (unsubdivide only) (in [0, 32767], default 0)

      :type: int

   .. attribute:: ratio

      Ratio of triangles to reduce to (collapse only) (in [0, 1], default 1.0)

      :type: float

   .. attribute:: symmetry_axis

      Axis of symmetry (default ``'X'``)

      :type: Literal[:ref:`rna_enum_axis_xyz_items`]

   .. attribute:: use_collapse_triangulate

      Keep triangulated faces resulting from decimation (collapse only) (default False)

      :type: bool

   .. attribute:: use_dissolve_boundaries

      Dissolve all vertices in between face boundaries (planar only) (default False)

      :type: bool

   .. attribute:: use_symmetry

      Maintain symmetry on an axis (default False)

      :type: bool

   .. attribute:: vertex_group

      Vertex group name (collapse only) (default "", never None)

      :type: str

   .. attribute:: vertex_group_factor

      Vertex group strength (in [0, 1000], default 1.0)

      :type: float

   .. classmethod:: bl_rna_get_subclass(id, default=None, /)
   
      :param id: The RNA type identifier.
      :type id: str
      :param default: The value to return when not found.
      :type default: :class:`bpy.types.Struct` | None
      :return: The RNA type or default when not found.
      :rtype: :class:`bpy.types.Struct`


   .. classmethod:: bl_rna_get_subclass_py(id, default=None, /)
   
      :param id: The RNA type identifier.
      :type id: str
      :param default: The value to return when not found.
      :type default: type | None
      :return: The class or default when not found.
      :rtype: type


Inherited Properties
--------------------

.. hlist::
   :columns: 2

   - :class:`bpy_struct.id_data`
   - :class:`Modifier.name`
   - :class:`Modifier.type`
   - :class:`Modifier.show_viewport`
   - :class:`Modifier.show_render`
   - :class:`Modifier.show_in_editmode`
   - :class:`Modifier.show_on_cage`
   - :class:`Modifier.show_expanded`
   - :class:`Modifier.is_active`
   - :class:`Modifier.use_pin_to_last`
   - :class:`Modifier.is_override_data`
   - :class:`Modifier.use_apply_on_spline`
   - :class:`Modifier.execution_time`
   - :class:`Modifier.persistent_uid`

Inherited Functions
-------------------

.. hlist::
   :columns: 2

   - :class:`bpy_struct.as_pointer`
   - :class:`bpy_struct.driver_add`
   - :class:`bpy_struct.driver_remove`
   - :class:`bpy_struct.get`
   - :class:`bpy_struct.id_properties_clear`
   - :class:`bpy_struct.id_properties_ensure`
   - :class:`bpy_struct.id_properties_ui`
   - :class:`bpy_struct.is_property_hidden`
   - :class:`bpy_struct.is_property_overridable_library`
   - :class:`bpy_struct.is_property_readonly`
   - :class:`bpy_struct.is_property_set`
   - :class:`bpy_struct.items`
   - :class:`bpy_struct.keyframe_delete`
   - :class:`bpy_struct.keyframe_insert`
   - :class:`bpy_struct.keys`
   - :class:`bpy_struct.path_from_id`
   - :class:`bpy_struct.path_from_module`
   - :class:`bpy_struct.path_resolve`
   - :class:`bpy_struct.pop`
   - :class:`bpy_struct.property_overridable_library_set`
   - :class:`bpy_struct.property_unset`
   - :class:`bpy_struct.rna_ancestors`
   - :class:`bpy_struct.type_recast`
   - :class:`bpy_struct.values`
   - :class:`Modifier.bl_rna_get_subclass`
   - :class:`Modifier.bl_rna_get_subclass_py`

