From e9f26a6aab98d7054bd8abd4b6bceba05c54baee Mon Sep 17 00:00:00 2001
From: Birte Kristina Friesel <derf@finalrewind.org>
Date: Fri, 30 May 2025 12:32:59 +0200
Subject: polyline_to_map: handle cases where from and to are in inverse order

---
 lib/Travelynx.pm | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'lib/Travelynx.pm')

diff --git a/lib/Travelynx.pm b/lib/Travelynx.pm
index f9723c1..efe5c07 100755
--- a/lib/Travelynx.pm
+++ b/lib/Travelynx.pm
@@ -2410,6 +2410,9 @@ sub startup {
 				  . ( $to_index - $from_index );
 				$seen{$key} = 1;
 
+				if ( $from_index > $to_index ) {
+					( $to_index, $from_index ) = ( $from_index, $to_index );
+				}
 				@polyline = @polyline[ $from_index .. $to_index ];
 				my @polyline_coords;
 				for my $coord (@polyline) {
-- 
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