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29 lines
1.2 KiB
Markdown
29 lines
1.2 KiB
Markdown
# arc
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Create an arc. You can pass a 2 element vector to define the central angle. It provides a `fn` parameter consistent with the `$fn` parameter of the circle module. It depends on the `circular_sector` module so you have to include circular_sector.scad.
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## Parameters
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- `radius` : The radius of the circle.
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- `angles` : A 2 element vector which defines the central angle. The first element of the vector is the beginning angle in degrees, and the second element is the ending angle.
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- `width_mode` : The default value is `LINE_CROSS`. The arc line will move outward by `width /2` and inward by `width / 2`. If it's `LINE_OUTWARD`, the arc line moves outward by `width`. The `LINE_INWARD` moves the arc line inward by `width`.
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- `fn` : The `$fn` value used by the `circle` module internally. The default value is 24.
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## Examples
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arc(radius = 20, angles = [45, 290], width = 2);
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%circle(r = 20, $fn = 24);
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arc(radius = 20, angles = [45, 290], width = 2);
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%circle(r = 20, $fn = 24);
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arc(radius = 20, angles = [45, 290], width = 2, width_mode = LINE_OUTWARD);
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%circle(r = 20, $fn = 24);
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