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Fixed Ngon rounding size distortion.

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Revar Desmera 2020-04-23 04:36:51 -07:00
parent 7acc14b708
commit 1b6ebd3761
2 changed files with 4 additions and 3 deletions
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5
shapes2d.scad
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@ -742,12 +742,13 @@ function regular_ngon(n=6, r, d, or, od, ir, id, side, rounding=0, realign=false
let( let(
steps = floor(segs(r)/n), steps = floor(segs(r)/n),
step = 360/n/steps, step = 360/n/steps,
inset = opp_ang_to_hyp(rounding, (180-360/n)/2),
path2 = [ path2 = [
for (i = [0:1:n-1]) let( for (i = [0:1:n-1]) let(
a = 360 - i*360/n - (realign? 180/n : 0), a = 360 - i*360/n - (realign? 180/n : 0),
p = polar_to_xy(r-rounding, a) p = polar_to_xy(r-inset, a)
) )
each arc(N=steps, cp=p, r=rounding*sc, start=a+180/n, angle=-360/n) each arc(N=steps, cp=p, r=rounding, start=a+180/n, angle=-360/n)
], ],
maxx_idx = max_index(subindex(path2,0)), maxx_idx = max_index(subindex(path2,0)),
path3 = polygon_shift(path2,maxx_idx) path3 = polygon_shift(path2,maxx_idx)

2
version.scad
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@ -8,7 +8,7 @@
////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////
BOSL_VERSION = [2,0,278]; BOSL_VERSION = [2,0,279];
// Section: BOSL Library Version Functions // Section: BOSL Library Version Functions