# FCurveModifiers(bpy_struct)

base class — `bpy_struct`

class `bpy.types.``FCurveModifiers`(bpy_struct)

  Collection of F-Curve Modifiers

  `active`

    Active F-Curve Modifier

    Type: | `FModifier`

  `new`(type)

    Add a constraint to this object

    Parameters: | type (enum in ['NULL', 'GENERATOR', 'FNGENERATOR', 'ENVELOPE', 'CYCLES', 'NOISE', 'LIMITS', 'STEPPED']) – Constraint type to add `NULL` Invalid. `GENERATOR` Generator, Generate a curve using a factorized or expanded polynomial. `FNGENERATOR` Built-In Function, Generate a curve using standard math functions such as sin and cos. `ENVELOPE` Envelope, Reshape F-Curve values - e.g. change amplitude of movements. `CYCLES` Cycles, Cyclic extend/repeat keyframe sequence. `NOISE` Noise, Add pseudo-random noise on top of F-Curves. `LIMITS` Limits, Restrict maximum and minimum values of F-Curve. `STEPPED` Stepped Interpolation, Snap values to nearest grid-step - e.g. for a stop-motion look.
    Returns: | New fmodifier
    Return type: | `FModifier`

  `remove`(modifier)

    Remove a modifier from this F-Curve

    Parameters: | modifier (`FModifier`, (never None)) – Removed modifier

  classmethod `bl_rna_get_subclass`(id, default=None)

    Parameters: | id (string) – The RNA type identifier.
    Returns: | The RNA type or default when not found.
    Return type: | `bpy.types.Struct` subclass

  classmethod `bl_rna_get_subclass_py`(id, default=None)

    Parameters: | id (string) – The RNA type identifier.
    Returns: | The class or default when not found.
    Return type: | type

Inherited Properties

`bpy_struct.id_data` |

Inherited Functions

`bpy_struct.as_pointer` `bpy_struct.driver_add` `bpy_struct.driver_remove` `bpy_struct.get` `bpy_struct.is_property_hidden` `bpy_struct.is_property_overridable_library` `bpy_struct.is_property_readonly` `bpy_struct.is_property_set` `bpy_struct.items` `bpy_struct.keyframe_delete` | `bpy_struct.keyframe_insert` `bpy_struct.keys` `bpy_struct.path_from_id` `bpy_struct.path_resolve` `bpy_struct.pop` `bpy_struct.property_overridable_library_set` `bpy_struct.property_unset` `bpy_struct.type_recast` `bpy_struct.values`

References

`FCurve.modifiers` |