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refactor

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This commit is contained in:
Justin Lin 2022-05-05 13:12:41 +08:00
parent 65a19f5f42
commit b08afa8798
1 changed files with 12 additions and 7 deletions
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19
src/shape_arc.scad
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@ -19,23 +19,28 @@ function shape_arc(radius, angle, width, width_mode = "LINE_CROSS") =
a_step = 360 / __frags(radius),
half_a_step = a_step / 2,
angles = is_num(angle) ? [0, angle] : angle,
m = floor(angles[0] / a_step) + 1,
n = floor(angles[1] / a_step),
a0 = angles[0],
a1 = angles[1],
m = floor(a0 / a_step) + 1,
n = floor(a1 / a_step),
r_outer = radius + w_offset[0],
r_inner = radius + w_offset[1],
points = [
// outer arc path
__ra_to_xy(__edge_r_begin(r_outer, angles[0], a_step, m), angles[0]),
__ra_to_xy(__edge_r_begin(r_outer, a0, a_step, m), a0),
if(m <= n) each [for(i = m; i <= n; i = i + 1) __ra_to_xy(r_outer, a_step * i)],
if(angles[1] != a_step * n) __ra_to_xy(__edge_r_end(r_outer, angles[1], a_step, n), angles[1]),
if(a1 != a_step * n) each [
__ra_to_xy(__edge_r_end(r_outer, a1, a_step, n), a1),
// inner arc path
__ra_to_xy(__edge_r_end(r_inner, a1, a_step, n), a1)
],
// inner arc path
if(angles[1] != a_step * n) __ra_to_xy(__edge_r_end(r_inner, angles[1], a_step, n), angles[1]),
if(m <= n) each [
for(i = m; i <= n; i = i + 1)
let(idx = (n + (m - i)))
let(idx = n + m - i)
__ra_to_xy(r_inner, a_step * idx)
],
__ra_to_xy(__edge_r_begin(r_inner, angles[0], a_step, m), angles[0])
__ra_to_xy(__edge_r_begin(r_inner, a0, a_step, m), a0)
]
) points;