High-end-systems AXON Instrukcja Użytkownika Strona 118

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CHAPTER 11
Global Functions
98 Axon Media Server User Manual
Keystone Correction Parameters
When you output an image from a
projector at an angle, the image may
appear skewed. Eight Keystone
parameters
Top
Top Left X Top Right X
Top
Bottom
Right Y
Bottom Right XBottom Left X
Bottom
Left Y
Right Y
Left Y
Original Content
adjust the image shape
and compensate for this effect. You
can control each of the four corners
of the graphics output to reshape
your image to a form that projects
correctly.
Default DMX Value: 0 = no
keystone correction has been
applied. Each corner has an x and a y
value that adjust and correct scale of
the projection from any corner toward the image center on that axis.
Keystone Top Left X DMX value = 85
Keystone Top Left Y DMX value = 85
Keystone Top Right X DMX value = 85
Keystone Top Right Y DMX value = 85
Keystone Top Right Y DMX value = 170
All other Keystone parameter DMX values = 25
5
Setting all Keystone X and Y parameters DMX values to zero will place the four corners of the
image at the four corners of the projector output. Adjusting keystone x values toward 255
(100%) moves the respective corner x positions horizontally toward the center of that image
edge. Adjusting keystone y values toward 255 (100%) causes the respective corner y positions
to be moved vertically toward the center of that edge of the image.
Tip: These parameters can also be used to create interesting skewing as a design effect.
Note: DL.3 fixtures have vertical lens shift capability that provides additional
keystone control. Engage lens shift with your DMX console in the Control
Parameter of the Motion Control fixture type.
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