Constraint(bpy_struct)¶
base class — bpy_struct
subclasses —
ActionConstraint
, CameraSolverConstraint
, ChildOfConstraint
, ClampToConstraint
, CopyLocationConstraint
, CopyRotationConstraint
, CopyScaleConstraint
, CopyTransformsConstraint
, DampedTrackConstraint
, FloorConstraint
, FollowPathConstraint
, FollowTrackConstraint
, KinematicConstraint
, LimitDistanceConstraint
, LimitLocationConstraint
, LimitRotationConstraint
, LimitScaleConstraint
, LockedTrackConstraint
, MaintainVolumeConstraint
, ObjectSolverConstraint
, PivotConstraint
, PythonConstraint
, RigidBodyJointConstraint
, ShrinkwrapConstraint
, SplineIKConstraint
, StretchToConstraint
, TrackToConstraint
, TransformCacheConstraint
, TransformConstraint

class
bpy.types.
Constraint
(bpy_struct)¶ Constraint modifying the transformation of objects and bones

active
¶ Constraint is the one being edited
Type: boolean, default False

error_location
¶ Amount of residual error in Blender space unit for constraints that work on position
Type: float in [inf, inf], default 0.0, (readonly)

error_rotation
¶ Amount of residual error in radians for constraints that work on orientation
Type: float in [inf, inf], default 0.0, (readonly)

influence
¶ Amount of influence constraint will have on the final solution
Type: float in [0, 1], default 0.0

is_proxy_local
¶ Constraint was added in this proxy instance (i.e. did not belong to source Armature)
Type: boolean, default False

is_valid
¶ Constraint has valid settings and can be evaluated
Type: boolean, default False, (readonly)

mute
¶ Enable/Disable Constraint
Type: boolean, default False

name
¶ Constraint name
Type: string, default “”, (never None)

owner_space
¶ Space that owner is evaluated in
WORLD
World Space, The constraint is applied relative to the world coordinate system.POSE
Pose Space, The constraint is applied in Pose Space, the object transformation is ignored.LOCAL_WITH_PARENT
Local With Parent, The constraint is applied relative to the local coordinate system of the object, with the parent transformation added.LOCAL
Local Space, The constraint is applied relative to the local coordinate system of the object.
Type: enum in [‘WORLD’, ‘POSE’, ‘LOCAL_WITH_PARENT’, ‘LOCAL’], default ‘WORLD’

show_expanded
¶ Constraint’s panel is expanded in UI
Type: boolean, default False

target_space
¶ Space that target is evaluated in
WORLD
World Space, The transformation of the target is evaluated relative to the world coordinate system.POSE
Pose Space, The transformation of the target is only evaluated in the Pose Space, the target armature object transformation is ignored.LOCAL_WITH_PARENT
Local With Parent, The transformation of the target bone is evaluated relative its local coordinate system, with the parent transformation added.LOCAL
Local Space, The transformation of the target is evaluated relative to its local coordinate system.
Type: enum in [‘WORLD’, ‘POSE’, ‘LOCAL_WITH_PARENT’, ‘LOCAL’], default ‘WORLD’

type
¶ CAMERA_SOLVER
Camera Solver.FOLLOW_TRACK
Follow Track.OBJECT_SOLVER
Object Solver.COPY_LOCATION
Copy Location, Copy the location of a target (with an optional offset), so that they move together.COPY_ROTATION
Copy Rotation, Copy the rotation of a target (with an optional offset), so that they rotate together.COPY_SCALE
Copy Scale, Copy the scale factors of a target (with an optional offset), so that they are scaled by the same amount.COPY_TRANSFORMS
Copy Transforms, Copy all the transformations of a target, so that they move together.LIMIT_DISTANCE
Limit Distance, Restrict movements to within a certain distance of a target (at the time of constraint evaluation only).LIMIT_LOCATION
Limit Location, Restrict movement along each axis within given ranges.LIMIT_ROTATION
Limit Rotation, Restrict rotation along each axis within given ranges.LIMIT_SCALE
Limit Scale, Restrict scaling along each axis with given ranges.MAINTAIN_VOLUME
Maintain Volume, Compensate for scaling one axis by applying suitable scaling to the other two axes.TRANSFORM
Transformation, Use one transform property from target to control another (or same) property on owner.TRANSFORM_CACHE
Transform Cache, Look up the transformation matrix from an external file.CLAMP_TO
Clamp To, Restrict movements to lie along a curve by remapping location along curve’s longest axis.DAMPED_TRACK
Damped Track, Point towards a target by performing the smallest rotation necessary.IK
Inverse Kinematics, Control a chain of bones by specifying the endpoint target (Bones only).LOCKED_TRACK
Locked Track, Rotate around the specified (‘locked’) axis to point towards a target.SPLINE_IK
Spline IK, Align chain of bones along a curve (Bones only).STRETCH_TO
Stretch To, Stretch along YAxis to point towards a target.TRACK_TO
Track To, Legacy tracking constraint prone to twisting artifacts.ACTION
Action, Use transform property of target to look up pose for owner from an Action.CHILD_OF
Child Of, Make target the ‘detachable’ parent of owner.FLOOR
Floor, Use position (and optionally rotation) of target to define a ‘wall’ or ‘floor’ that the owner can not cross.FOLLOW_PATH
Follow Path, Use to animate an object/bone following a path.PIVOT
Pivot, Change pivot point for transforms (buggy).RIGID_BODY_JOINT
Rigid Body Joint, Use to define a Rigid Body Constraint (for Game Engine use only).SHRINKWRAP
Shrinkwrap, Restrict movements to surface of target mesh.
Type: enum in [‘CAMERA_SOLVER’, ‘FOLLOW_TRACK’, ‘OBJECT_SOLVER’, ‘COPY_LOCATION’, ‘COPY_ROTATION’, ‘COPY_SCALE’, ‘COPY_TRANSFORMS’, ‘LIMIT_DISTANCE’, ‘LIMIT_LOCATION’, ‘LIMIT_ROTATION’, ‘LIMIT_SCALE’, ‘MAINTAIN_VOLUME’, ‘TRANSFORM’, ‘TRANSFORM_CACHE’, ‘CLAMP_TO’, ‘DAMPED_TRACK’, ‘IK’, ‘LOCKED_TRACK’, ‘SPLINE_IK’, ‘STRETCH_TO’, ‘TRACK_TO’, ‘ACTION’, ‘CHILD_OF’, ‘FLOOR’, ‘FOLLOW_PATH’, ‘PIVOT’, ‘RIGID_BODY_JOINT’, ‘SHRINKWRAP’], default ‘CAMERA_SOLVER’, (readonly)

Inherited Properties
Inherited Functions
References