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Update geometry.scad

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This commit is contained in:
RonaldoCMP 2021-10-13 23:27:49 -03:00
parent aef60324fd
commit da751e1e13
1 changed files with 5 additions and 3 deletions
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geometry.scad
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@ -1673,11 +1673,13 @@ function polygon_triangulate(poly, ind, eps=EPSILON) =
: len(poly[ind[0]]) == 3 : len(poly[ind[0]]) == 3
? // represents the polygon projection on its plane as a 2d polygon ? // represents the polygon projection on its plane as a 2d polygon
let( let(
ind = deduplicate_indexed(poly, ind, eps), ind = deduplicate_indexed(poly, ind, eps)
)
len(ind)<3 ? [] :
let(
pts = select(poly,ind), pts = select(poly,ind),
nrm = polygon_normal(pts) nrm = polygon_normal(pts)
) )
len(ind)<3 ? [] :
// here, instead of an error, it might return [] or undef // here, instead of an error, it might return [] or undef
assert( nrm!=undef, assert( nrm!=undef,
"The polygon has self-intersections or its vertices are collinear or non coplanar.") "The polygon has self-intersections or its vertices are collinear or non coplanar.")