Data Provider Groups | Data Provider Elements
Body Axes Orientation:YPR 321
Reports the orientation and angular velocity of the Body axes of the object with respect to a selected reference set of axes, where the Yaw, Pitch, and Roll angles are defined using the YPR 321 sequence. The reference set of axes can be selected from any axes in the Vector Geometry Tool owned by the object.Similar to Euler angles, YPR angles specify attitude using three rotations in sequence: a rotation about the reference Z axis is called yaw (Y), a rotation about the reference Y axis is called pitch (P), and a rotation about the reference X axis is called roll (R). Unlike Euler angles, the rotations are not made about axes defined by an earlier rotation: each rotation is made about the reference system's axes.
As used in YPR angles, the names yaw, pitch, and roll do not refer to the angles normally used in aviation; the terms yaw, pitch, and roll in aviation refer to 321 Euler angles.
Selecting the Body axes as the reference axes results in no orientation difference nor any angular velocity between the Body axes and this reference axes.
Available for these objects: Aircraft, Antenna, AreaTarget, Facility, GroundVehicle, LaunchVehicle, LineTarget, Missile, Place, Radar, Receiver, Satellite, Sensor, Ship, Target, Transmitter
Type: Time-varying data.
Availability: Reports | Graphs | Dynamic Displays | Strip Charts
Data Provider Groups
Any Axes component owned by the object is available for use, including user defined ones. Use the Analysis Workbench listing or the Report Manager->Report Content Properties tool to determine the actual set of components that can be used for a specific object.Data Provider Elements
| Name | Dimension | Type | Description |
|---|---|---|---|
| Time | Date | Real Number or Text | Time. |
| Yaw | Angle | Real Number or Text | The first angle in the YPR sequence rotation for specifying the Body axes orientation with respect to the reference axes. Defines rotation about the z-axis of the reference axes. |
| Pitch | Angle | Real Number or Text | The second angle in the YPR sequence rotation for specifying the Body axes orientation with respect to the reference axes. Defines rotation about the y-axis of the reference axes. |
| Roll | Angle | Real Number or Text | The third angle in the YPR sequence rotation for specifying the Body axes orientation with respect to the reference axes. Defines rotation about the x-axis of the reference axes. |
| Euler321 precession | Angle | Real Number or Text | The first angle in the Euler 321 sequence rotation for specifying the Body axes orientation relative to the selected axes. Defines the rotation about the z-axis of the selected axes. |
| Euler321 nutation | Angle | Real Number or Text | The second angle in the Euler 321 sequence rotation for specifying the Body axes orientation relative to the selected axes. Defines the rotation about the y-axis of the axes set rotated through precession. |
| Euler321 spin | Angle | Real Number or Text | The third angle in the Euler 321 sequence rotation for specifying the Body axes orientation relative to the selected axes. Defines the rotation about the x-axis of the axes set rotated through precession and then nutation. |
| Euler323 precession | Angle | Real Number or Text | The first angle in the Euler 323 sequence rotation for specifying the Body axes orientation relative to the selected axes. Defines the rotation about the z-axis of the selected axes. |
| Euler323 nutation | Angle | Real Number or Text | The second angle in the Euler 323 sequence rotation for specifying the Body axes orientation relative to the selected axes. Defines the rotation about the y-axis of the axes set rotated through precession. |
| Euler323 spin | Angle | Real Number or Text | The third angle in the Euler 323 sequence rotation for specifying the Body axes orientation relative to the selected axes. Defines the rotation about the z-axis of the axes set rotated through precession and then nutation. |
| q1 | Unitless | Real Number | First element of quaternion (and of its vector part) representing the orientation between the Body and selected axes. |
| q2 | Unitless | Real Number | Second element of quaternion (and of its vector part) representing the orientation between the Body and selected axes. |
| q3 | Unitless | Real Number | Third element of quaternion (and of its vector part) representing the orientation between the Body and selected axes. |
| q4 | Unitless | Real Number | Fourth element of quaternion (its scalar part) representing the orientation between the Body and selected axes. |
| wx | AngleRate | Real Number | The X component of the angular velocity vector, expressed in body axes. The angular velocity measures the rate of change of the body axes with respect to the selected set of axes. |
| wy | AngleRate | Real Number | The Y component of the angular velocity vector, expressed in body axes. The angular velocity measures the rate of change of the body axes with respect to the selected set of axes. |
| wz | AngleRate | Real Number | The Z component of the angular velocity vector, expressed in body axes. The angular velocity measures the rate of change of the body axes with respect to the selected set of axes. |
| w mag | AngleRate | Real Number | Magnitude of the angular velocity vector. The angular velocity measures the rate of change of the body axes with respect to the selected set of axes. |
| RightAscension of w | Longitude | Real Number or Text | Right ascension of the angular velocity vector, i.e., the signed angle between the x-axis of the Body axes and the projection of the angular velocity vector onto the xy-plane of the Body axes. |
| Declination of w | Latitude | Real Number or Text | Declination of the angular velocity vector, i.e., the signed angle between the angular velocity vector and its projection onto the xy-plane of the Body axes. |
| Eigen-Angle | Angle | Real Number or Text | Angle of eigen-rotation between the two sets of axes, i.e. a single axis rotation that aligns the two sets of axes. |
| Eigen-Axis x | Unitless | Real Number | First component of a unit vector representing the axis of eigen-rotation between the two sets of axes. Defines instantaneous projection of the eigen-axis onto x-axis of either of the two sets of axes. |
| Eigen-Axis y | Unitless | Real Number | Second component of a unit vector representing the axis of eigen-rotation between the two sets of axes. Defines instantaneous projection of the eigen-axis onto y-axis of either of the two sets of axes. |
| Eigen-Axis z | Unitless | Real Number | Third component of a unit vector representing the axis of eigen-rotation between the two sets of axes. Defines instantaneous projection of the eigen-axis onto z-axis of either of the two sets of axes. |
| Yaw Rate | AngleRate | Real Number | The rate of change of yaw angle. |
| Pitch Rate | AngleRate | Real Number | The rate of change of pitch angle. |
| Roll Rate | AngleRate | Real Number | The rate of change of roll angle. |
| Euler321 precession rate | AngleRate | Real Number | The rate of change of the Euler321 precession angle. |
| Euler321 nutation rate | AngleRate | Real Number | The rate of change of the Euler321 nutation angle. |
| Euler321 spin rate | AngleRate | Real Number | The rate of change of the Euler321 spin angle. |
| Euler323 precession rate | AngleRate | Real Number | The rate of change of the Euler323 precession angle. |
| Euler323 nutation rate | AngleRate | Real Number | The rate of change of the Euler323 nutation angle. |
| Euler323 spin rate | AngleRate | Real Number | The rate of change of the Euler323 spin angle. |