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draw OBTUSE & ACUTE

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Justin Lin
2022-05-20 10:17:23 +08:00
parent 6fa4fe0ea9
commit 795ac56f50
1 changed files with 12 additions and 8 deletions
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20
examples/tiles/penrose3_crystallization.scad → examples/tiles/penrose_crystallization.scad
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@@ -1,8 +1,8 @@
use <ptf/ptf_rotate.scad>; use <ptf/ptf_rotate.scad>;
use <triangle/tri_incenter.scad>; use <polyline_join.scad>;
use <experimental/tile_penrose3.scad>; use <experimental/tile_penrose3.scad>;
n = 8; n = 9;
spacing = 0.1; spacing = 0.1;
invert = "NO"; invert = "NO";
@@ -110,23 +110,27 @@ levels = [
]; ];
module penrose3_crystallization(n, levels, spacing, invert) { module penrose_crystallization(n, levels, spacing, invert) {
size = len(levels); size = len(levels);
s = size * 1.4; s = size * 1.4;
tris = tile_penrose3(n, [["OBTUSE", [ptf_rotate([1, 0], 108), [0, 0], [1, 0]]]]); tris = tile_penrose3(n, [["OBTUSE", [ptf_rotate([1, 0], 108), [0, 0], [1, 0]]]]);
for(t = tris) { for(t = tris) {
t_poly = t[1] * s; sample_p = s * (t[1][0] + t[1][2]) / 2;
p = tri_incenter(t_poly); level = levels[size - sample_p.y][sample_p.x];
level = levels[size - p.y][p.x];
if(!is_undef(level)) { if(!is_undef(level)) {
h = level / 255; h = level / 255;
t_poly = t[1] * s;
color([h, h, h]) color([h, h, h])
linear_extrude((invert == "YES" ? 10 - h * 10 : h * 10) + 2) linear_extrude((invert == "YES" ? 10 - h * 10 : h * 10) + 2)
offset(-spacing) difference() {
polygon(t_poly); polygon(t_poly);
polyline_join(t_poly)
circle(spacing);
}
} }
} }
} }
penrose3_crystallization(n, levels, spacing, invert); penrose_crystallization(n, levels, spacing, invert);