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Revert decompose_path() to working code.

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Garth Minette 2021-09-12 19:12:48 -07:00
parent 8290fb6566
commit 0fa53f1b80
1 changed files with 2 additions and 31 deletions
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33
paths.scad
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@ -777,37 +777,8 @@ function decompose_path(path, closed=true, eps=EPSILON) =
path = cleanup_path(path, eps=eps),
tagged = _tag_self_crossing_subpaths(path, closed=closed, eps=eps),
kept = [for (sub = tagged) if(sub[0] == "O") sub[1]],
completed = [for (frag=kept) if(is_closed_path(frag)) frag],
incomplete = [for (frag=kept) if(!is_closed_path(frag)) frag],
defrag = _path_fast_defragment(incomplete, eps=eps),
completed2 = assemble_path_fragments(defrag, eps=eps)
) concat(completed2,completed);
function _path_fast_defragment(fragments, eps=EPSILON, _done=[]) =
len(fragments)==0? _done :
let(
path = fragments[0],
endpt = last(path),
extenders = [
for (i = [1:1:len(fragments)-1]) let(
test1 = approx(endpt,fragments[i][0],eps=eps),
test2 = approx(endpt,last(fragments[i]),eps=eps)
) if (test1 || test2) (test1? i : -1)
]
) len(extenders) == 1 && extenders[0] >= 0? _path_fast_defragment(
fragments=[
concat(list_head(path),fragments[extenders[0]]),
for (i = [1:1:len(fragments)-1])
if (i != extenders[0]) fragments[i]
],
eps=eps,
_done=_done
) : _path_fast_defragment(
fragments=[for (i = [1:1:len(fragments)-1]) fragments[i]],
eps=eps,
_done=concat(_done,[deduplicate(path,closed=true,eps=eps)])
);
outregion = assemble_path_fragments(kept, eps=eps)
) outregion;
function _extreme_angle_fragment(seg, fragments, rightmost=true, eps=EPSILON) =