quat_interpolateT_quat_interpolateQuatInterpolateQuatInterpolatequat_interpolate (Operator)
Name
quat_interpolateT_quat_interpolateQuatInterpolateQuatInterpolatequat_interpolate — Interpolation of two quaternions.
Signature
Description
The operator quat_interpolatequat_interpolateQuatInterpolateQuatInterpolateQuatInterpolatequat_interpolate interpolates the two quaternions
QuaternionStartQuaternionStartQuaternionStartQuaternionStartquaternionStartquaternion_start and QuaternionEndQuaternionEndQuaternionEndQuaternionEndquaternionEndquaternion_end at the
interpolation position InterpPosInterpPosInterpPosInterpPosinterpPosinterp_pos. This position must lie
within the interval [0,1]. In the case of InterpPosInterpPosInterpPosInterpPosinterpPosinterp_pos=0,
the interpolated quaternion QuaternionInterpolatedQuaternionInterpolatedQuaternionInterpolatedQuaternionInterpolatedquaternionInterpolatedquaternion_interpolated corresponds to
QuaternionStartQuaternionStartQuaternionStartQuaternionStartquaternionStartquaternion_start. In the case of InterpPosInterpPosInterpPosInterpPosinterpPosinterp_pos=1,
the interpolated quaternion QuaternionInterpolatedQuaternionInterpolatedQuaternionInterpolatedQuaternionInterpolatedquaternionInterpolatedquaternion_interpolated corresponds to
QuaternionEndQuaternionEndQuaternionEndQuaternionEndquaternionEndquaternion_end.
The interpolation is done using spherical linear interpolation. As a
consequence if both QuaternionStartQuaternionStartQuaternionStartQuaternionStartquaternionStartquaternion_start and QuaternionEndQuaternionEndQuaternionEndQuaternionEndquaternionEndquaternion_end are
rotation quaternions, QuaternionInterpolatedQuaternionInterpolatedQuaternionInterpolatedQuaternionInterpolatedquaternionInterpolatedquaternion_interpolated will
be a rotation quaternion as well. Further, if InterpPosInterpPosInterpPosInterpPosinterpPosinterp_pos
is increased at constant speed, a point on the unit sphere that is
rotated using QuaternionInterpolatedQuaternionInterpolatedQuaternionInterpolatedQuaternionInterpolatedquaternionInterpolatedquaternion_interpolated travels with constant speed on
an arc on the unit sphere.
Execution Information
- Multithreading type: reentrant (runs in parallel with non-exclusive operators).
- Multithreading scope: global (may be called from any thread).
- Processed without parallelization.
Parameters
QuaternionStartQuaternionStartQuaternionStartQuaternionStartquaternionStartquaternion_start (input_control) quaternion → HQuaternion, HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)
Start quaternion.
QuaternionEndQuaternionEndQuaternionEndQuaternionEndquaternionEndquaternion_end (input_control) quaternion → HQuaternion, HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)
End quaternion.
InterpPosInterpPosInterpPosInterpPosinterpPosinterp_pos (input_control) real-array → HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)
Interpolation parameter.
Default value: 0.5
Suggested values: 0.0, 0.25, 0.5, 0.75, 1.0
QuaternionInterpolatedQuaternionInterpolatedQuaternionInterpolatedQuaternionInterpolatedquaternionInterpolatedquaternion_interpolated (output_control) quaternion → HQuaternion, HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)
Interpolated quaternion.
Possible Predecessors
axis_angle_to_quataxis_angle_to_quatAxisAngleToQuatAxisAngleToQuatAxisAngleToQuataxis_angle_to_quat,
quat_normalizequat_normalizeQuatNormalizeQuatNormalizeQuatNormalizequat_normalize
Possible Successors
quat_to_hom_mat3dquat_to_hom_mat3dQuatToHomMat3dQuatToHomMat3dQuatToHomMat3dquat_to_hom_mat3d,
quat_rotate_point_3dquat_rotate_point_3dQuatRotatePoint3dQuatRotatePoint3dQuatRotatePoint3dquat_rotate_point_3d,
quat_to_posequat_to_poseQuatToPoseQuatToPoseQuatToPosequat_to_pose
See also
quat_rotate_point_3dquat_rotate_point_3dQuatRotatePoint3dQuatRotatePoint3dQuatRotatePoint3dquat_rotate_point_3d,
quat_conjugatequat_conjugateQuatConjugateQuatConjugateQuatConjugatequat_conjugate,
quat_composequat_composeQuatComposeQuatComposeQuatComposequat_compose,
dual_quat_interpolatedual_quat_interpolateDualQuatInterpolateDualQuatInterpolateDualQuatInterpolatedual_quat_interpolate
Module
Foundation