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add closed param

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This commit is contained in:
Justin Lin
2020-02-28 15:17:59 +08:00
parent 0ce3688981
commit fbbc0f0796
2 changed files with 6 additions and 5 deletions
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2
examples/hollow_out/hollow_torus_knot.scad
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@@ -46,5 +46,5 @@ module hollow_out_torus_knot(shape, p, q, phi_step, thickness, line_style) {
pts = torus_knot(p, q, phi_step); pts = torus_knot(p, q, phi_step);
sects = sects_by_path(shape, pts); sects = sects_by_path(shape, pts);
hollow_out_sweep(concat(sects, [sects[0]]), thickness, line_style); hollow_out_sweep(sects, thickness, closed = true, style = line_style);
} }

9
src/experimental/hollow_out_sweep.scad
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@@ -4,11 +4,11 @@ use <hull_polyline3d.scad>;
use <experimental/tri_bisectors.scad>; use <experimental/tri_bisectors.scad>;
// style: LINES or HULL_LINES // style: LINES or HULL_LINES
module hollow_out_sweep(sections, thickness, style = "LINES") { module hollow_out_sweep(sections, thickness, closed = false, style = "LINES") {
function rects(sects) = function rects(sects) =
let( let(
sects_leng = len(sections), sects_leng = len(sects),
shape_pt_leng = len(sections[0]) shape_pt_leng = len(sects[0])
) )
[ [
for(i = [0:sects_leng - 2]) for(i = [0:sects_leng - 2])
@@ -29,8 +29,9 @@ module hollow_out_sweep(sections, thickness, style = "LINES") {
[[rect[0], rect[1], rect[2]], [rect[0], rect[2], rect[3]]] : [[rect[0], rect[1], rect[2]], [rect[0], rect[2], rect[3]]] :
[[rect[1], rect[2], rect[3]], [rect[1], rect[3], rect[0]]]; [[rect[1], rect[2], rect[3]], [rect[1], rect[3], rect[0]]];
sects = closed ? concat(sections, [sections[0]]) : sections;
lines = [ lines = [
for(rect = rects(sections)) for(rect = rects(sects))
for(tri = rand_tris(rect)) for(tri = rand_tris(rect))
each tri_bisectors(tri) each tri_bisectors(tri)
]; ];