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This commit is contained in:
Simon Bruder 2022-12-27 20:16:25 +01:00
parent b36bdaa076
commit b586e7ed6b
Signed by: simon
GPG key ID: 8D3C82F9F309F8EC
1 changed files with 3 additions and 3 deletions
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6
genstar/Main.hs
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@ -45,7 +45,7 @@ instance Show PolygonPath where
-- | 'regularPolygonMod' @n@ @rf@ @pos@
-- creates a regular @n@-gon
-- with the center at @pos@
-- with the centre at @pos@
-- that is modified in the sense that it takes @rf@,
-- which is used to set the radius for each individual point.
regularPolygonMod :: Integer -> (Integer -> Double) -> Vertex -> PolygonPath
@ -54,7 +54,7 @@ regularPolygonMod n rf pos = PolygonPath (map (\step -> move pos $ scale (rf ste
-- | 'regularPolygon' @n@ @r@ @pos@
-- creates a regular polygon
-- with the radius @r@
-- and the center at @pos@.
-- and the centre at @pos@.
regularPolygon :: Integer -> Double -> Vertex -> PolygonPath
regularPolygon n r = regularPolygonMod n (const r)
@ -63,7 +63,7 @@ regularPolygon n r = regularPolygonMod n (const r)
-- with @n@ spikes,
-- the inner radius @r1@,
-- the outer radius @r2@
-- and the center @pos@.
-- and the centre @pos@.
star :: Integer -> Double -> Double -> Vertex -> PolygonPath
star n r1 r2 = regularPolygonMod (n * 2) ((take (fromInteger n * 2) (cycle [r1, r2]) !!) . fromInteger)