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42 lines
1.3 KiB
Markdown
42 lines
1.3 KiB
Markdown
# arc
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Creates an arc. You can pass a 2 element vector to define the central angle. Its `$fa`, `$fs` and `$fn` parameters are consistent with the `circle` module.
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## Parameters
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- `radius` : The radius of the circle.
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- `angle` : A single value or a 2 element vector which defines the central angle. The first element of the vector is the beginning angle in degrees, and the second element is the ending angle.
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- `width` : The width of the arc. Default to 1.
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- `width_mode` : The default value is `"LINE_CROSS"`. The arc line will move outward by `width / 2` and inward by `width / 2`. If it's `"LINE_OUTWARD"`, The arc line moves outward by `width`. The `"LINE_INWARD"` moves the arc line inward by `width`.
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- `$fa`, `$fs`, `$fn` : Check [the circle module](https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Using_the_2D_Subsystem#circle) for more details.
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## Examples
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use <arc.scad>
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$fn = 24;
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arc(radius = 20, angle = [45, 290], width = 2);
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%circle(r = 20);
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use <arc.scad>
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$fn = 24;
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arc(radius = 20, angle = [45, 290], width = 2, width_mode = "LINE_OUTWARD");
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%circle(r = 20);
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use <arc.scad>
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$fn = 24;
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arc(radius = 20, angle = [45, 290], width = 2, width_mode = "LINE_INWARD");
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%circle(r = 20);
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