From 05cc5939bd53c87acf9d8a69a1be56f04545fd50 Mon Sep 17 00:00:00 2001
From: Hanno Braun <hanno@braun-odw.eu>
Date: Tue, 21 Mar 2023 15:26:12 +0100
Subject: [PATCH] Fix winding algorithm not going back to start

---
 crates/fj-kernel/src/objects/full/cycle.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/crates/fj-kernel/src/objects/full/cycle.rs b/crates/fj-kernel/src/objects/full/cycle.rs
index e0fde16b5..95e44fb7a 100644
--- a/crates/fj-kernel/src/objects/full/cycle.rs
+++ b/crates/fj-kernel/src/objects/full/cycle.rs
@@ -1,7 +1,7 @@
 use std::slice;
 
-use fj_interop::ext::SliceExt;
 use fj_math::{Scalar, Winding};
+use itertools::Itertools;
 
 use crate::{geometry::curve::Curve, objects::HalfEdge, storage::Handle};
 
@@ -62,7 +62,7 @@ impl Cycle {
 
         let mut sum = Scalar::ZERO;
 
-        for [a, b] in self.half_edges.as_slice().array_windows_ext() {
+        for (a, b) in self.half_edges.iter().circular_tuple_windows() {
             let [a, b] = [a, b].map(|half_edge| half_edge.start_position());
 
             sum += (b.u - a.u) * (b.v + a.v);