THOMSON GRASS VALLEY KayakDD-1, User Manual

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KayakDD - Digital Production Switcher
2.11.1.2 Rotate
Picture rotation about the reference axis in the X, Y, and Z dimensions ( Figure 24 ).
Rotate is limited to ± one half revolution, and will always take the shortest path to the
new position. Rotate uses Quaternion math to calculate the move with increased
accuracy. Multiple rotations are performed with the Spin function.
Figure 24 Rotate
2.11.1.3 Spin
Supports multiple rotations about the reference axis in the X, Y, and Z directions. Spin
supports fractional values, and is similar to Rotate when the move is less than ±. one
half revolution. Spin uses Euler math to calculate the move, which is not quite as
precise as Quaternion, but permits multiple rotations. Spin applies transform values in
Z, X, Y order, so editing effects in this axis order provides the best control of the effect.
NOTE! Following broadcast conventions, moving the Joystick forward or back along
the Joystick’s Y axis rotates the top of the picture forward or back (a rotation about the
X reference axis). Similarly, moving the Joystick left or right along the Joystick’s X axis
rotates the side picture left or right (a rotation about the Y reference axis).
Figure 25 Aspect, Skew, Perspective
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