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Remove redundant collinear points from bezpath_curve() output.

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Revar Desmera 2024-07-07 00:11:23 -07:00
parent 8ea8ebf341
commit ebb98b47d2
1 changed files with 9 additions and 6 deletions
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15
beziers.scad
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@ -466,12 +466,15 @@ function bezpath_curve(bezpath, splinesteps=16, N=3, endpoint=true) =
assert(len(bezpath)%N == 1, str("A degree ",N," bezier path should have a multiple of ",N," points in it, plus 1.")) assert(len(bezpath)%N == 1, str("A degree ",N," bezier path should have a multiple of ",N," points in it, plus 1."))
let( let(
segs = (len(bezpath)-1) / N, segs = (len(bezpath)-1) / N,
step = 1 / splinesteps step = 1 / splinesteps,
) [ path = [
for (seg = [0:1:segs-1]) for (seg = [0:1:segs-1])
each bezier_points(select(bezpath, seg*N, (seg+1)*N), [0:step:1-step/2]), each bezier_points(select(bezpath, seg*N, (seg+1)*N), [0:step:1-step/2]),
if (endpoint) last(bezpath) if (endpoint) last(bezpath)
]; ],
is_closed = approx(path[0], last(path)),
out = path_merge_collinear(path, closed=is_closed)
) out;
// Function: bezpath_closest_point() // Function: bezpath_closest_point()