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init from OBTUSE

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Justin Lin
2021-08-15 13:58:14 +08:00
parent ed3b8c1422
commit 0c1e85e5db
1 changed files with 6 additions and 8 deletions
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14
src/experimental/tile_penrose3.scad
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@@ -42,16 +42,13 @@ function tri2tile(type, tri) =
function tile_penrose3(n, triangles) = function tile_penrose3(n, triangles) =
let( let(
fn = 10, fn = 10,
acute = 360 / fn, a = 720 / fn,
shape_tri0 = [[0, 0], [1, 0], ptf_rotate([1, 0], acute)], shape_tri0 = [[1, 0], [1, 0] + ptf_rotate([-1, 0], -180 + a), [0, 0]],
tris = _penrose3( tris = _penrose3(
is_undef(triangles) ? [ is_undef(triangles) ? [
for(i = [0:fn - 1]) for(i = [0:fn / 2 - 1])
let(t = [for(p = shape_tri0) ptf_rotate(p, i * acute)]) let(t = [for(p = shape_tri0) ptf_rotate(p, i * a)])
each (i % 2 == 0 ? each tri2tile("OBTUSE", [t[0], t[1], t[2]])
tri2tile("ACUTE", [t[0], t[1], t[2]]):
tri2tile("ACUTE", [t[0], t[2], t[1]])
)
] : ] :
[for(tri = triangles) each tri2tile(tri[0], [tri[1][1], tri[1][2], tri[1][0]])], [for(tri = triangles) each tri2tile(tri[0], [tri[1][1], tri[1][2], tri[1][0]])],
n n
@@ -70,6 +67,7 @@ module draw(tris, radius) {
} }
radius = 10; radius = 10;
$fn = 12;
draw(tile_penrose3(5, [ draw(tile_penrose3(5, [
["OBTUSE", [ptf_rotate([2, 0], 108), [0, 0], [2, 0]]] ["OBTUSE", [ptf_rotate([2, 0], 108), [0, 0], [2, 0]]]