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use [each lt, v] to replace concat(lt, [v])

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Justin Lin
2022-02-28 11:05:50 +08:00
parent c9370160a7
commit 8f76446bd8
9 changed files with 58 additions and 51 deletions
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22
examples/hollow_out/hollow_out_cylinder.scad
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@@ -14,17 +14,15 @@ ys = rands(0, size[1], pt_nums);
half_fn = fn / 2;
dx = size[0] / fn;
dy = size[1] / half_fn;
points = concat(
[
[0, 0], [size[0], 0],
[size[0], size[1]], [0, size[1]]
],
[for(i = [1:fn - 1]) [i * dx, 0]],
[for(i = [1:fn - 1]) [i * dx, size[1]]],
[for(i = [1:half_fn - 1]) [0, dy * i]],
[for(i = [1:half_fn - 1]) [size[0], dy * i]],
[for(i = [0:len(xs) - 1]) [xs[i], ys[i]]]
);
points = [
[0, 0], [size[0], 0],
[size[0], size[1]], [0, size[1]],
each [for(i = [1:fn - 1]) [i * dx, 0]],
each [for(i = [1:fn - 1]) [i * dx, size[1]]],
each [for(i = [1:half_fn - 1]) [0, dy * i]],
each [for(i = [1:half_fn - 1]) [size[0], dy * i]],
each [for(i = [0:len(xs) - 1]) [xs[i], ys[i]]]
];
bisectors = [
for(tri = tri_delaunay(points))
@@ -33,6 +31,6 @@ bisectors = [
for(line = bisectors) {
pts = [for(p = line) ptf_bend(size, p, radius, 360)];
polyline_join(concat(pts, [pts[0]]))
polyline_join([each pts, pts[0]])
sphere(d = line_diameter, $fn = 4);
}

10
examples/hollow_out/hollow_out_holder.scad
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@@ -9,12 +9,10 @@ radius = 30;
angle = 360;
diameter = 2;
lines = concat(
hollow_out_square([columns, rows], width),
[[
for(x = [0:width:width * columns]) [x, rows * width]
]]
);
lines = [
each hollow_out_square([columns, rows], width),
[for(x = [0:width:width * columns]) [x, rows * width]]
];
for(line = lines) {
transformed = [for(pt = line) ptf_bend([columns * width, rows * width], pt, radius, angle)];

12
examples/hollow_out/hollow_out_starburst.scad
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@@ -12,17 +12,17 @@ half = true;
module hollow_out_starburst(r1, r2, h, n, line_diameter, half = false) {
star = [for(p = shape_star(r1, r2, n)) [p[0], p[1], 0]];
leng = len(star);
tris = concat(
[for(i = [0:leng - 2]) [[0, 0, h], star[i], star[i + 1]]],
[[[0, 0, h], star[leng - 1], star[0]]]
);
tris = [
each [for(i = [0:leng - 2]) [[0, 0, h], star[i], star[i + 1]]],
[[0, 0, h], star[leng - 1], star[0]]
];
module half_star() {
for(tri = tris) {
polyline_join(concat(tri, [tri[0]]))
polyline_join([each tri, tri[0]])
sphere(d = line_diameter);
for(line = tri_bisectors(tri)) {
polyline_join(concat(line, [line[0]]))
polyline_join([each line, line[0]])
sphere(d = line_diameter);
}
}

17
examples/hollow_out/hollow_out_vase.scad
View File

@@ -39,10 +39,11 @@ module hollow_out_vase(ctrl_pts, t_step, line_diameter, fn, line_style) {
// bottom
fst_sect = sects[0];
fst_tris = concat(
[for(i = [0:leng_sect - 2]) [[0, 0, 0], fst_sect[i], fst_sect[i + 1]]],
[[[0, 0, 0], fst_sect[leng_sect - 1], fst_sect[0]]]
);
fst_tris = [
each [for(i = [0:leng_sect - 2]) [[0, 0, 0], fst_sect[i], fst_sect[i + 1]]],
[[0, 0, 0], fst_sect[leng_sect - 1], fst_sect[0]]
];
for(tri = fst_tris) {
lines = tri_bisectors(tri);
for(line = lines) {
@@ -55,10 +56,10 @@ module hollow_out_vase(ctrl_pts, t_step, line_diameter, fn, line_style) {
// mouth
lst_sect = sects[len(sects) - 1];
lst_tris = concat(
[for(i = [0:leng_sect - 2]) [[0, 0, fpt[2]], lst_sect[i], lst_sect[i + 1]]],
[[[0, 0, fpt[2]], lst_sect[leng_sect - 1], lst_sect[0]]]
);
lst_tris = [
each [for(i = [0:leng_sect - 2]) [[0, 0, fpt[2]], lst_sect[i], lst_sect[i + 1]]],
[[0, 0, fpt[2]], lst_sect[leng_sect - 1], lst_sect[0]]
];
dangling_pts = [for(tri = lst_tris) tri_bisectors(tri)[1][1]];
offset_z = [0, 0, line_diameter];
for(i = [0: leng_sect - 1]) {