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update geometry.scad

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RonaldoCMP 2021-10-13 23:16:14 -03:00
parent 06419a6786
commit aef60324fd
1 changed files with 3 additions and 1 deletions
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geometry.scad
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@ -1673,9 +1673,11 @@ function polygon_triangulate(poly, ind, eps=EPSILON) =
: len(poly[ind[0]]) == 3
? // represents the polygon projection on its plane as a 2d polygon
let(
ind = deduplicate_indexed(poly, ind, eps),
pts = select(poly,ind),
nrm = polygon_normal(pts)
)
)
len(ind)<3 ? [] :
// here, instead of an error, it might return [] or undef
assert( nrm!=undef,
"The polygon has self-intersections or its vertices are collinear or non coplanar.")