From 42dae1504a096235a6df7a0dddbacfb8e1c53075 Mon Sep 17 00:00:00 2001
From: Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
Date: Thu, 18 Aug 2022 22:42:16 +0200
Subject: [PATCH] router: fix negative chamfer value for hulls generated for
 0-length segments

---
 pcbnew/router/pns_utils.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pcbnew/router/pns_utils.cpp b/pcbnew/router/pns_utils.cpp
index dcdfeed9f2..737488236e 100644
--- a/pcbnew/router/pns_utils.cpp
+++ b/pcbnew/router/pns_utils.cpp
@@ -235,7 +235,7 @@ const SHAPE_LINE_CHAIN SegmentHull ( const SHAPE_SEGMENT& aSeg, int aClearance,
 
     if( a == b )
     {
-        int xx2 = KiROUND( 2.0 * ( 1.0 - M_SQRT2 ) * d );
+        int xx2 = KiROUND( 2.0 * ( 1.0 - M_SQRT1_2 ) * d );
 
         return OctagonalHull( a - VECTOR2I( aSeg.GetWidth() / 2, aSeg.GetWidth() / 2 ),
                               VECTOR2I( aSeg.GetWidth(), aSeg.GetWidth() ),