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Justin Lin
2022-05-30 17:39:42 +08:00
parent 8c88932588
commit e2ec67b67d
1 changed files with 19 additions and 20 deletions
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39
examples/mandelbrot_set.scad
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@@ -1,4 +1,5 @@
use <surface/sf_thicken.scad>;
use <surface/sf_solidify.scad>;
use <util/sum.scad>;
Z0 = [0, 0];
NL = 50;
@@ -8,7 +9,7 @@ step = .5;
cw = 1.5;
cc = [-0.75, 0];
thickness = 2;
thickness = 4;
function pow2(z) = [z.x ^ 2 - z.y ^ 2, 2 * z.x * z.y];
@@ -21,30 +22,28 @@ function znxt(c) =
],
leng = len(slt)
)
//leng == NL ? 0 :
leng == 0 ? c * c : slt[leng - 1];
leng == NL ? sum(slt) / (thickness * 2) :
leng == 0 ? c * c : sum(slt) / leng * thickness;
left = -PW * 0.9;
right = PW * 1.25;
left = -PW * 0.84;
right = PW * 1.18;
top = PW * 0.9;
pts = [
for(py = 0; py <= PW; py = py + step)
for(py = -top; py <= top; py = py + step)
let(y = cw / PW * py + cc.y)
[
for(px = left; px <= right; px = px + step)
let(x = cw / PW * px + cc.x, v = znxt([x, y]))
[px, py, v]
let(x = cw / PW * px + cc.x)
[px, py, znxt([x, y])]
]
];
intersection() {
union() {
sf_thicken(pts, thickness);
mirror([0, 1, 0])
sf_thicken(pts, thickness);
}
b_pts = [
for(py = -top; py <= top; py = py + step)
[
for(px = left; px <= right; px = px + step)
[px, py, -thickness]
]
];
linear_extrude(thickness * 10, center = true)
translate([(left + right) / 2, 0] + cc)
scale([1, 0.95 * 2 * PW / (right - left)])
circle((right - left) / 2, $fn = 48);
}
sf_solidify(pts, b_pts);