From 07abe8e19f69a879376f1cf118f9fdb135d478f8 Mon Sep 17 00:00:00 2001
From: Julien Finet <julien.finet@kitware.com>
Date: Fri, 19 Jan 2024 22:43:03 +0100
Subject: [PATCH] fix(contourtriangulator): fix vtkContourTriangulator when
 points are ordered in odd way

An integer number was additioned to an array.

fix #2990
---
 Sources/Filters/General/ContourTriangulator/helper.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Sources/Filters/General/ContourTriangulator/helper.js b/Sources/Filters/General/ContourTriangulator/helper.js
index 87d23489ccf..89aa0326947 100644
--- a/Sources/Filters/General/ContourTriangulator/helper.js
+++ b/Sources/Filters/General/ContourTriangulator/helper.js
@@ -523,8 +523,8 @@ export function vtkCCSMakePolysFromLines(
             let ptsEnd = npts - 1;
             if (endIdx === 1) {
               pit = npts - 1 - (completePoly ? 1 : 0);
-              ptsIt = pts + 1;
-              ptsEnd = pts + npts - (completePoly ? 1 : 0);
+              ptsIt = 1;
+              ptsEnd = npts - (completePoly ? 1 : 0);
             }
             while (ptsIt !== ptsEnd) {
               poly[--pit] = poly[ptsIt++];