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This filter is found in
->->.
It gives a circular or a rectangular representation of your image with
all the possible intermediates between both.
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Preview
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The result of your settings will appear in the Preview without
affecting the image until you click on OK.
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Circle Depth in Percent
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Slider and input box allow you to set the "circularity" of the
transformation, from rectangle (0%) to circle (100%).
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Offset Angle
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This option controlles the angle the drawing will start from
(0 - 359°), and so turns it around the circle center.
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Map Backwards
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When this option is checked, the drawing will start from the
right instead of the left.
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Map from Top
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If unchecked, the mapping will put the bottom row in the middle
and the top row on the outside. If checked, it will be the
opposite.
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To Polar
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If unchecked, the image will be circularly mapped into a rectangle
(odd effect). If checked, the image will be mapped into a circle.
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