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var fs = require("fs")
function polygon(radius, sides, angle) {
let w = radius * 2 + 6
let b = 3 + radius
let out = []
out.push(`<svg xmlns="http://www.w3.org/2000/svg" width="${w}" height="${w}">`)
let d = [ "M" ]
for (let i = 0; i < sides; ++i) {
let a = (angle + (360 / sides) * i) * (Math.PI / 180)
let x = b + Math.round(Math.sin(a) * radius)
let y = b + Math.round(Math.cos(a) * radius)
d.push(x)
d.push(y)
}
d.push("z")
out.push(`<path d="${d.join(" ")}" stroke-width="2" fill="white" stroke="none" />`)
out.push(`</svg>`)
return out.join("\n")
}
// circle diameter: 54 => 27
// square width: 54 => 27
// hex diameter = 60 => 30
// triangle base = 70, r = 70 / sqrt(3) => 40
fs.writeFileSync("ops.svg", polygon(30, 6, 30))
//fs.writeFileSync("ptl.svg", polygon(27, 100, 0))
//fs.writeFileSync("oc.svg", polygon(27, 4, 45))
fs.writeFileSync("ug.svg", polygon(38, 3, 180))
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