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31 lines
855 B
Markdown
31 lines
855 B
Markdown
# circle_path
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Sometimes you need all points on the path of a circle. Here's the function. Its `$fa`, `$fs` and `$fn` parameters are consistent with the `circle` module.
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## Parameters
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- `radius` : The radius of the circle.
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- `n` : The number of points you want. It's not greater than the fragments of the circle.
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- `$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 <circle_path.scad>
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$fn = 24;
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points = circle_path(radius = 50);
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polygon(points);
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leng = len(points);
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step_angle = 360 / leng;
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for(i = [0:leng - 1]) {
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translate(points[i])
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rotate([90, 0, 90 + i * step_angle])
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linear_extrude(1, center = true)
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text("A", valign = "center", halign = "center");
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}
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