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.. index:: Grease Pencil Modifiers; Length Modifier
.. _bpy.types.GreasePencilLengthModifier:
***************
Length Modifier
***************
The *Length* modifier can shrink or extend strokes.
Options
=======
.. figure:: /images/grease-pencil_modifiers_generate_length_panel.png
:align: right
The Length modifier.
Mode
:Absolute: Length is in geometry space.
:Relative: Length is in ratio to the stroke's length.
Start
Added length to the start of the stroke. Negative value will shrink the stroke.
End
Added length to the end of the stroke. Negative value will shrink the stroke.
Used Length
Define what portion of the stroke is used to calculate the direction of the extension.
Curvature
---------
When enabled, the extension will follow the curvature of the stroke.
Point Density
Multiplied by Start/End for the total point count.
Segment Influence
Factor to determine how much the length of the individual segments
should influence the final computed curvature. Higher factors makes
small segments influence the overall curvature less.
Filter Angle
Ignore points on the stroke that deviate from their neighbors by more
than this angle when determining the extrapolation shape.
Invert
Invert the curvature of the stroke's extension.
Random Offsets
--------------
Random Offset Start/End
Size of random length added to the start/end of each stroke.
Random Noise Offset
Smoothly offset each stroke's random value.
Seed
Number used to generate different noise patterns.
Randomize
^^^^^^^^^
Re-randomizes values over time.
Step
Number of frames before recalculate random values again.
Influence Filters
-----------------
See :ref:`grease-pencil-modifier-influence-filters`.
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