quat_interpolateT_quat_interpolateQuatInterpolateQuatInterpolatequat_interpolate (Operator)
quat_interpolateT_quat_interpolateQuatInterpolateQuatInterpolatequat_interpolate — Interpolation of two quaternions.
Signature
Description
The operator quat_interpolatequat_interpolateQuatInterpolateQuatInterpolatequat_interpolate interpolates the two quaternions
QuaternionStartQuaternionStartQuaternionStartquaternionStartquaternion_start and QuaternionEndQuaternionEndQuaternionEndquaternionEndquaternion_end at the
interpolation position InterpPosInterpPosInterpPosinterpPosinterp_pos. This position must lie
within the interval [0,1]. In the case of InterpPosInterpPosInterpPosinterpPosinterp_pos=0,
the interpolated quaternion QuaternionInterpolatedQuaternionInterpolatedQuaternionInterpolatedquaternionInterpolatedquaternion_interpolated corresponds to
QuaternionStartQuaternionStartQuaternionStartquaternionStartquaternion_start. In the case of InterpPosInterpPosInterpPosinterpPosinterp_pos=1,
the interpolated quaternion QuaternionInterpolatedQuaternionInterpolatedQuaternionInterpolatedquaternionInterpolatedquaternion_interpolated corresponds to
QuaternionEndQuaternionEndQuaternionEndquaternionEndquaternion_end.
The interpolation is done using spherical linear interpolation. As a
consequence if both QuaternionStartQuaternionStartQuaternionStartquaternionStartquaternion_start and QuaternionEndQuaternionEndQuaternionEndquaternionEndquaternion_end are
rotation quaternions, QuaternionInterpolatedQuaternionInterpolatedQuaternionInterpolatedquaternionInterpolatedquaternion_interpolated will
be a rotation quaternion as well. Further, if InterpPosInterpPosInterpPosinterpPosinterp_pos
is increased at constant speed, a point on the unit sphere that is
rotated using QuaternionInterpolatedQuaternionInterpolatedQuaternionInterpolatedquaternionInterpolatedquaternion_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
QuaternionStartQuaternionStartQuaternionStartquaternionStartquaternion_start (input_control) quaternion → HQuaternion, HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)
Start quaternion.
QuaternionEndQuaternionEndQuaternionEndquaternionEndquaternion_end (input_control) quaternion → HQuaternion, HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)
End quaternion.
InterpPosInterpPosInterpPosinterpPosinterp_pos (input_control) real-array → HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)
Interpolation parameter.
Default:
0.5
Suggested values:
0.0, 0.25, 0.5, 0.75, 1.0
QuaternionInterpolatedQuaternionInterpolatedQuaternionInterpolatedquaternionInterpolatedquaternion_interpolated (output_control) quaternion → HQuaternion, HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)
Interpolated quaternion.
Possible Predecessors
axis_angle_to_quataxis_angle_to_quatAxisAngleToQuatAxisAngleToQuataxis_angle_to_quat,
quat_normalizequat_normalizeQuatNormalizeQuatNormalizequat_normalize
Possible Successors
quat_to_hom_mat3dquat_to_hom_mat3dQuatToHomMat3dQuatToHomMat3dquat_to_hom_mat3d,
quat_rotate_point_3dquat_rotate_point_3dQuatRotatePoint3dQuatRotatePoint3dquat_rotate_point_3d,
quat_to_posequat_to_poseQuatToPoseQuatToPosequat_to_pose
See also
quat_rotate_point_3dquat_rotate_point_3dQuatRotatePoint3dQuatRotatePoint3dquat_rotate_point_3d,
quat_conjugatequat_conjugateQuatConjugateQuatConjugatequat_conjugate,
quat_composequat_composeQuatComposeQuatComposequat_compose,
dual_quat_interpolatedual_quat_interpolateDualQuatInterpolateDualQuatInterpolatedual_quat_interpolate
Module
Foundation