Constraint(bpy_struct)
base class — bpy_struct
subclasses —
LimitRotationConstraint, ActionConstraint, CopyTransformsConstraint, CopyRotationConstraint, ObjectSolverConstraint, CopyLocationConstraint, LimitLocationConstraint, LimitScaleConstraint, TrackToConstraint, RigidBodyJointConstraint, ChildOfConstraint, ClampToConstraint, TransformConstraint, FollowPathConstraint, DampedTrackConstraint, FloorConstraint, LimitDistanceConstraint, StretchToConstraint, KinematicConstraint, SplineIKConstraint, ShrinkwrapConstraint, MaintainVolumeConstraint, CameraSolverConstraint, CopyScaleConstraint, PivotConstraint, LockedTrackConstraint, FollowTrackConstraint, PythonConstraint
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class bpy.types.Constraint(bpy_struct)
Constraint modifying the transformation of objects and bones
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active
Constraint is the one being edited
| Type : | boolean, default False |
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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) |
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error_rotation
Amount of residual error in radians for constraints that work on orientation
| Type : | float in [-inf, inf], default 0.0, (readonly) |
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influence
Amount of influence constraint will have on the final solution
| Type : | float in [0, 1], default 0.0 |
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is_proxy_local
Constraint was added in this proxy instance (i.e. did not belong to source Armature)
| Type : | boolean, default False |
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is_valid
Constraint has valid settings and can be evaluated
| Type : | boolean, default False, (readonly) |
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mute
Enable/Disable Constraint
| Type : | boolean, default False |
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name
Constraint name
| Type : | string, default “”, (never None) |
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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’ |
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show_expanded
Constraint’s panel is expanded in UI
| Type : | boolean, default False |
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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’ |
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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.
- 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 Y-Axis 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’, ‘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) |
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Inherited Properties
Inherited Functions
References