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refactor

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This commit is contained in:
Justin Lin
2022-03-12 16:22:45 +08:00
parent ccb16cc4f7
commit d2b61f1c60
2 changed files with 8 additions and 11 deletions
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11
src/__comm__/__fast_fibonacci.scad
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@@ -1,15 +1,12 @@
function __fast_fibonacci_sub(nth) =
function __fast_fibonacci_2_elems(nth) =
nth == 0 ? [0, 1] :
let(
_f = __fast_fibonacci_2_elems(floor(nth / 2)),
a = _f[0],
b = _f[1],
c = a * (b * 2 - a),
d = a ^ 2 + b ^ 2
d = _f * _f
)
nth % 2 == 0 ? [c, d] : [d, c + d];
function __fast_fibonacci_2_elems(nth) =
nth == 0 ? [0, 1] : __fast_fibonacci_sub(nth);
function __fast_fibonacci(nth) =
__fast_fibonacci_2_elems(nth)[0];
function __fast_fibonacci(nth) = __fast_fibonacci_2_elems(nth)[0];

8
src/__comm__/__half_trapezium.scad
View File

@@ -5,14 +5,14 @@ function __tr__corner_t_leng_lt_zero(frags, t_sector_angle, l1, l2, h, round_r)
let(t_height = tan(t_sector_angle) * l1 - round_r / sin(90 - t_sector_angle) - h / 2)
[
for(pt = __pie_for_rounding(round_r, 90 - t_sector_angle, 90, frags * t_sector_angle / 180))
[pt[0], pt[1] + t_height]
[pt.x, pt.y + t_height]
];
function __tr_corner_t_leng_gt_or_eq_zero(frags, t_sector_angle, t_leng, h, round_r) =
let(offset_y = h / 2 - round_r)
[
for(pt = __pie_for_rounding(round_r, 90 - t_sector_angle, 90, frags * t_sector_angle / 360))
[pt[0] + t_leng, pt[1] + offset_y]
[pt.x + t_leng, pt.y + offset_y]
];
function __tr_corner(frags, b_ang, l1, l2, h, round_r) =
@@ -29,14 +29,14 @@ function __tr__corner_b_leng_lt_zero(frags, b_sector_angle, l1, l2, h, round_r)
[
for(i = [0:leng - 1])
let(pt = reversed[leng - 1 - i])
[pt[0], -pt[1]]
[pt.x, -pt.y]
];
function __br_corner_b_leng_gt_or_eq_zero(frags, b_sector_angle, l1, l2, b_leng, h, round_r) =
let(half_h = h / 2)
[
for(pt = __pie_for_rounding(round_r, -90, -90 + b_sector_angle, frags * b_sector_angle / 360))
[pt[0] + b_leng, pt[1] + round_r - half_h]
[pt.x + b_leng, pt.y + round_r - half_h]
];
function __br_corner(frags, b_ang, l1, l2, h, round_r) =