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add triangles param

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This commit is contained in:
Justin Lin
2021-08-15 10:23:11 +08:00
parent af88ee6e86
commit 62c4e1c656
1 changed files with 15 additions and 11 deletions
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26
src/experimental/tile_penrose3.scad
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@@ -10,7 +10,7 @@ function _subdivide(triangles) =
b = tri[2],
c = tri[3]
)
each (type == "obtuse" ? _sub_obtuse(a, b, c) : _sub_acute(a, b, c))
each (type == "OBTUSE" ? _sub_obtuse(a, b, c) : _sub_acute(a, b, c))
];
function _sub_acute(a, b, c) =
@@ -18,35 +18,39 @@ function _sub_acute(a, b, c) =
PHI = 1.618033988749895,
p = a + (b - a) / PHI
)
[["acute", c, p, b], ["obtuse", p, c, a]];
[["ACUTE", c, p, b], ["OBTUSE", p, c, a]];
function _sub_obtuse(a, b, c) =
let(
PHI = 1.618033988749895,
r = b + (c - b) / PHI
)
concat([["obtuse", r, c, a]], _sub_acute(b, a, r));
concat([["OBTUSE", r, c, a]], _sub_acute(b, a, r));
function _penrose3(triangles, n, i = 0) =
i == n ? triangles :
_penrose3(_subdivide(triangles), n, i+ 1);
function tile_penrose3(n) =
function tile_penrose3(n, triangles) =
let(
fn = 10,
acute = 360 / fn,
shape_tri0 = [[0, 0], [1, 0], ptf_rotate([1, 0], acute)],
tris = _penrose3([
for(i = [0:fn - 1])
let(t = [for(p = shape_tri0) ptf_rotate(p, i * acute)])
i % 2 == 0 ? ["acute", t[0], t[1], t[2]] : ["acute", t[0], t[2], t[1]]
], n)
tris = _penrose3(
is_undef(triangles) ? [
for(i = [0:fn - 1])
let(t = [for(p = shape_tri0) ptf_rotate(p, i * acute)])
i % 2 == 0 ? ["ACUTE", t[0], t[1], t[2]] : ["ACUTE", t[0], t[2], t[1]]
] :
[for(tri = triangles) [tri[0], tri[1][0], tri[1][1], tri[1][2]]],
n
)
)
[for(t = tris) [t[0], [t[3], t[1], t[2]]]];
module draw(tris, radius) {
for(t = tris) {
color(t[0] == "obtuse" ? "white" : "black")
color(t[0] == "OBTUSE" ? "white" : "black")
linear_extrude(.5)
polygon(t[1] * radius);
linear_extrude(1)
@@ -56,7 +60,7 @@ module draw(tris, radius) {
radius = 10;
draw(tile_penrose3(0), radius);
draw(tile_penrose3(6, [["ACUTE", [[0, 0], [1, 0], ptf_rotate([1, 0], 36)]]]), radius);
translate([30, 0])
draw(tile_penrose3(1), radius);