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Code Issues Releases Wiki Activity

refactor: provide closed shape

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Justin Lin
2022-04-14 10:36:01 +08:00
parent f2e81bf3c3
commit d6b2e40d8d
1 changed files with 6 additions and 7 deletions
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13
src/voronoi/_impl/_convex_intersection.scad
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@@ -17,13 +17,11 @@ function _in_convex(convex_pts, pt) =
)
_in_convex_r(0, 1, c, convex_pts, pt, leng, convex_pts, pt);
function _intersection_ps(shape, line_pts, epsilon) =
function _intersection_ps(closed_shape, line_pts, epsilon) =
let(
pts = [each shape, shape[0]],
npts = [
for(i = [0:len(shape) - 1])
let(p = lines_intersection(line_pts, [pts[i], pts[i + 1]], epsilon = epsilon))
for(i = [0:len(closed_shape) - 2])
let(p = lines_intersection(line_pts, [closed_shape[i], closed_shape[i + 1]], epsilon = epsilon))
if(p != []) p
],
leng = len(npts)
@@ -34,11 +32,12 @@ function _intersection_ps(shape, line_pts, epsilon) =
function _convex_intersection(shape1, shape2, epsilon = 0.0001) =
(shape1 == [] || shape2 == []) ? [] :
let(closed_shape2 = [each shape2, shape2[0]])
_convex_ct_clk_order(
concat(
[for(p = shape1) if(_in_convex(shape2, p)) p],
[for(p = shape2) if(_in_convex(shape1, p)) p],
[for(i = [0:len(shape1) - 2]) each _intersection_ps(shape2, [shape1[i], shape1[i + 1]], epsilon)],
_intersection_ps(shape2, [shape1[len(shape1) - 1], shape1[0]], epsilon)
[for(i = [0:len(shape1) - 2]) each _intersection_ps(closed_shape2, [shape1[i], shape1[i + 1]], epsilon)],
_intersection_ps(closed_shape2, [shape1[len(shape1) - 1], shape1[0]], epsilon)
)
);