Operator Reference
set_origin_pose (Operator)
set_origin_pose
— Translate the origin of a 3D pose.
Signature
set_origin_pose( : : PoseIn, DX, DY, DZ : PoseNewOrigin)
Description
set_origin_pose
translates the origin of the 3D pose PoseIn
by the vector given by DX
, DY
, and DZ
and returns
the result in PoseNewOrigin
. Note that the translation is performed
relative to the local coordinate system of the pose itself. For example, if
PoseIn
describes the pose of an object in camera coordinates,
PoseNewOrigin
is obtained by translating the object's coordinate
system by DX
along its own x-axis (and so on for the other axes) and
not along the x-axis of the camera coordinate system. This corresponds to the
following chain of transformations:
Thus, set_origin_pose
is a shortcut for the following sequence of
operator calls:
pose_to_hom_mat3d(PoseIn, HomMat3DIn)
|
hom_mat3d_translate_local(HomMat3DIn, DX, DY, DZ, HomMat3DNewOrigin)
|
hom_mat3d_to_pose(HomMat3DNewOrigin, PoseNewOrigin)
|
A typical application of this operator when defining a world
coordinate system by placing the standard calibration plate on the plane of
measurements. In this case, the external camera parameters returned by
camera_calibration
correspond to a coordinate system that lies above
the measurement plane, because the coordinate system of the calibration plate
is located on its surface and the plate has a certain thickness. To correct
the pose, call set_origin_pose
with the translation vector
(0,0,D), where D is the thickness of the calibration plate.
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
PoseIn
(input_control) pose →
(real / integer)
original 3D pose.
Number of elements: 7
DX
(input_control) real →
(real)
translation of the origin in x-direction.
Default: 0
DY
(input_control) real →
(real)
translation of the origin in y-direction.
Default: 0
DZ
(input_control) real →
(real)
translation of the origin in z-direction.
Default: 0
PoseNewOrigin
(output_control) pose →
(real / integer)
new 3D pose after applying the translation.
Number of elements: 7
Result
set_origin_pose
returns 2 (
H_MSG_TRUE)
if all parameter values are
correct. If necessary, an exception is raised.
Possible Predecessors
create_pose
,
hom_mat3d_to_pose
,
camera_calibration
,
hand_eye_calibration
Possible Successors
write_pose
,
pose_to_hom_mat3d
,
image_points_to_world_plane
,
contour_to_world_plane_xld
See also
Module
Foundation