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BL_ArmatureConstraint(PyObjectPlus)
===================================
base class --- :class:`PyObjectPlus`
.. class:: BL_ArmatureConstraint(PyObjectPlus)
Proxy to Armature Constraint. Allows to change constraint on the fly.
Obtained through :class:`BL_ArmatureObject`.constraints.
.. note::
Not all armature constraints are supported in the GE.
.. attribute:: type
Type of constraint, (read-only).
Use one of :ref:`these constants<armatureconstraint-constants-type>`.
:type: integer, one of CONSTRAINT_TYPE_* constants
.. attribute:: name
Name of constraint constructed as <bone_name>:<constraint_name>. constraints list.
:type: string
This name is also the key subscript on :class:`BL_ArmatureObject`.
.. attribute:: enforce
fraction of constraint effect that is enforced. Between 0 and 1.
:type: float
.. attribute:: headtail
Position of target between head and tail of the target bone: 0=head, 1=tail.
:type: float.
.. note::
Only used if the target is a bone (i.e target object is an armature.
.. attribute:: lin_error
runtime linear error (in Blender units) on constraint at the current frame.
This is a runtime value updated on each frame by the IK solver. Only available on IK constraint and iTaSC solver.
:type: float
.. attribute:: rot_error
Runtime rotation error (in radiant) on constraint at the current frame.
:type: float.
This is a runtime value updated on each frame by the IK solver. Only available on IK constraint and iTaSC solver.
It is only set if the constraint has a rotation part, for example, a CopyPose+Rotation IK constraint.
.. attribute:: target
Primary target object for the constraint. The position of this object in the GE will be used as target for the constraint.
:type: :class:`KX_GameObject`.
.. attribute:: subtarget
Secondary target object for the constraint. The position of this object in the GE will be used as secondary target for the constraint.
:type: :class:`KX_GameObject`.
Currently this is only used for pole target on IK constraint.
.. attribute:: active
True if the constraint is active.
:type: boolean
.. note::
An inactive constraint does not update lin_error and rot_error.
.. attribute:: ik_weight
Weight of the IK constraint between 0 and 1.
Only defined for IK constraint.
:type: float
.. attribute:: ik_type
Type of IK constraint, (read-only).
Use one of :ref:`these constants<armatureconstraint-constants-ik-type>`.
:type: integer.
.. attribute:: ik_flag
Combination of IK constraint option flags, read-only.
Use one of :ref:`these constants<armatureconstraint-constants-ik-flag>`.
:type: integer
.. attribute:: ik_dist
Distance the constraint is trying to maintain with target, only used when ik_type=CONSTRAINT_IK_DISTANCE.
:type: float
.. attribute:: ik_mode
Use one of :ref:`these constants<armatureconstraint-constants-ik-mode>`.
Additional mode for IK constraint. Currently only used for Distance constraint:
:type: integer
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