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SGI Developer Toolbox 6.1
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SGI Developer Toolbox 6.1 - Disc 4.iso
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rotate.hlp
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1994-08-01
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@c@C1@b@_ Raster Rotation
Rotate an image by an arbitrary angle or flip an image about the x or
y axis
@b Options
@i Angles
Change the rotation angle by pressing the mouse on appropriate
buttons. Several short cuts (multiples of 90 degrees) are provided.
@i Anti-aliasing
By default, subpixel sampling is enabled and therefore, the resulting
image is always in RGB format. If exact number of colors are to be
kept or to avoid the slow quantization, anti-aliasing can be turned
off by toggling this flag.
@s@b Note
The three-pass algorithm is not implemented (yet). Currently its
selection is the same as anti-aliasing.