Any set of axes defined in the Vector Geometry Tool is available for use, including user defined sets.
| Name |
Dimension |
Type |
Description |
| Time |
DateFormat |
Real Number |
Time. |
| Yaw |
AngleUnit |
Real Number |
The yaw angle for the primary object's ellipsoid at the given time. The yaw angle locates from the tangential direction the projection of the major axis of the ellipsoid onto the plane whose normal is the cross-track direction. |
| Pitch |
AngleUnit |
Real Number |
The pitch angle for the primary object's ellipsoid at the given time. The pitch angle locates the major axis of the ellipsoid from the plane whose normal is the cross-track direction. |
| Roll |
AngleUnit |
Real Number |
Roll angle between the two sets of axes.
Defines rotation about the x-axis of the reference set,
which occurs in order defined by placement of its index (1) in selected sequence in YPR angles representation.
|
| Euler321 precession |
AngleUnit |
Real Number |
Precession angle between the two sets of axes. Defines rotation about the z-axis of the reference set, which occurs first when using 321 sequence in Euler angles representation. |
| Euler321 nutation |
AngleUnit |
Real Number |
Nutation angle between the two sets of axes. Defines rotation about the y-axis of the set rotated through precession, which occurs second when using 321 sequence in Euler angles representation. |
| Euler321 spin |
AngleUnit |
Real Number |
Spin angle between the two sets of axes. Defines rotation about the x-axis of the set rotated through precession and nutation, which occurs third when using 321 sequence in Euler angles representation. |
| Euler323 precession |
AngleUnit |
Real Number |
Precession angle between the two sets of axes.
Defines rotation about the z-axis of the reference set,
which occurs first when using 323 sequence in Euler angles representation. |
| Euler323 nutation |
AngleUnit |
Real Number |
Nutation angle between the two sets of axes.
Defines rotation about the y-axis of the set rotated through precession,
which occurs second when using 323 sequence in Euler angles representation. |
| Euler323 spin |
AngleUnit |
Real Number |
Spin angle between the two sets of axes.
Defines rotation about the z-axis of the set rotated through precession and nutation,
which occurs third when using 323 sequence in Euler angles representation. |
| q1 |
Unitless |
Real Number |
First element of quaternion (and of its vector part) representing orientation between the two sets of axes. |
| q2 |
Unitless |
Real Number |
Second element of quaternion (and of its vector part) representing orientation between the two sets of axes. |
| q3 |
Unitless |
Real Number |
Third element of quaternion (and of its vector part) representing orientation between the two sets of axes. |
| q4 |
Unitless |
Real Number |
Fourth element of quaternion (its scalar part) representing orientation between the two sets of axes. |
| wx |
AngleRateUnit |
Real Number |
First component of angular velocity vector between the two sets of axes.
Represents projection of angular velocity vector onto x-axis of the selected set. |
| wy |
AngleRateUnit |
Real Number |
Second component of angular velocity vector between the two sets of axes.
Represents projection of angular velocity vector onto y-axis of the selected set. |
| wz |
AngleRateUnit |
Real Number |
Third component of angular velocity vector between the two sets of axes.
Represents projection of angular velocity vector onto z-axis of the selected set. |
| w mag |
AngleRateUnit |
Real Number |
Magnitude of angular velocity vector between the two sets of axes.
Represents relative speed of rotation between the two sets of axes. |
| RightAscension of w |
LongitudeUnit |
Real Number |
Right ascension of angular velocity vector between the two sets of axes.
Represents the angle between the x-axis of the selected set and projection of the angular velocity vector onto the xy-plane of the selected set.
The angle is measured counterclockwise about the z-axis of the selected set.
|
| Declination of w |
LatitudeUnit |
Real Number |
Declination of angular velocity vector between the two sets of axes.
Represents the angle between the angular velocity vector and its projection onto the xy-plane of the selected set.
The angle is positive when the angular velocity vector is directed toward positive z-axis of the selected set. |
| Eigen-Angle |
AngleUnit |
Real Number |
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. |
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