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return [] if no intersection

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Justin Lin
2022-04-05 11:37:43 +08:00
parent 6d4f7661ec
commit 25b61d8ded
1 changed files with 7 additions and 2 deletions
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9
src/experimental/convex_intersection.scad
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@@ -7,9 +7,14 @@ function convex_intersection(shape1, shape2, epsilon = 0.0001) =
(shape1 == [] || shape2 == []) ? [] : (shape1 == [] || shape2 == []) ? [] :
let( let(
leng = len(shape1), leng = len(shape1),
pts = [each shape1, shape1[0]] pts = [each shape1, shape1[0]],
convex = concat(
[for(p = shape1) if(in_shape(shape2, p, include_edge = true)) p],
[for(p = shape2) if(in_shape(shape1, p, include_edge = true)) p],
[for(i = [0:leng - 1]) each _intersection_ps(shape2, [pts[i], pts[i + 1]], epsilon)]
)
) )
convex_ct_clk_order( convex == [] ? [] : convex_ct_clk_order(
concat( concat(
[for(p = shape1) if(in_shape(shape2, p, include_edge = true)) p], [for(p = shape1) if(in_shape(shape2, p, include_edge = true)) p],
[for(p = shape2) if(in_shape(shape1, p, include_edge = true)) p], [for(p = shape2) if(in_shape(shape1, p, include_edge = true)) p],