From 54d1d6db87fedd55430ee8550aaac1d5adec024a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rn=20Starru=C3=9F?= <starboerg@gmail.com>
Date: Mon, 7 Jun 2021 11:42:53 +0200
Subject: [PATCH] Fix rare use of undefined variable

x2 was used undefined in case of polygons without y-extend. Defaulting x2 to zero is works around this issue.
---
 src/svg.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/svg.js b/src/svg.js
index a0cf2482..1addb0d6 100644
--- a/src/svg.js
+++ b/src/svg.js
@@ -17,6 +17,7 @@ export function convertToPathData(originalData, guideData) {
             var normPoints = pointStrings.map(function(p) {var xy = p.split(','); return [xy[0] - bbox.cx, xy[1] - bbox.cy]});
             var x0 = normPoints[normPoints.length - 1][0];
             var y0 = normPoints[normPoints.length - 1][1];
+            var x2 = 0;
             for (var i = 0; i < normPoints.length; i++, x0 = x1, y0 = y1) {
                 var x1 = normPoints[i][0];
                 var y1 = normPoints[i][1];
@@ -25,7 +26,7 @@ export function convertToPathData(originalData, guideData) {
                 if (dy == 0) {
                     continue;
                 } else {
-                    var x2 = x0 - y0 * dx / dy;
+                    x2 = x0 - y0 * dx / dy;
                 }
                 if (0 <= x2 && x2 < Infinity && ((x0 <= x2 && x2 <= x1) || (x1 <= x2 && x2 <= x0))) {
                     break;