From 884022f0a9726f2bc395b95d3fc93c3375b363c3 Mon Sep 17 00:00:00 2001
From: jffmichi <unknown>
Date: Tue, 1 Aug 2023 18:14:08 +0200
Subject: [PATCH 1/2] fix flipEdge not taking into account FirstParameter and
 LastParameter for splines

---
 src/Mod/Path/Path/Geom.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Mod/Path/Path/Geom.py b/src/Mod/Path/Path/Geom.py
index 624af65fe8..615f2cf4ac 100644
--- a/src/Mod/Path/Path/Geom.py
+++ b/src/Mod/Path/Path/Geom.py
@@ -676,7 +676,7 @@ def flipEdge(edge):
             poles, mults, knots, perio, degree, weights, ratio
         )
 
-        return Part.Edge(flipped)
+        return Part.Edge(flipped, ma + mi - edge.LastParameter, ma + mi - edge.FirstParameter)
     elif type(edge.Curve) == Part.OffsetCurve:
         return edge.reversed()
 

From eb595ac3cef316ab35a2de63320c3b82e92a06ed Mon Sep 17 00:00:00 2001
From: jffmichi <>
Date: Thu, 10 Aug 2023 01:17:36 +0200
Subject: [PATCH 2/2] add unit test for flipEdge with FirstParameter and
 LastParameter

---
 src/Mod/Path/PathTests/TestPathGeom.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/Mod/Path/PathTests/TestPathGeom.py b/src/Mod/Path/PathTests/TestPathGeom.py
index d6ffd864e0..e2bad2f1ec 100644
--- a/src/Mod/Path/PathTests/TestPathGeom.py
+++ b/src/Mod/Path/PathTests/TestPathGeom.py
@@ -872,6 +872,9 @@ class TestPathGeom(PathTestBase):
         edge = Part.Edge(spline)
         self.assertEdgeShapesMatch(edge, Path.Geom.flipEdge(edge))
 
+        edge = Part.Edge(spline, 4, 12)
+        self.assertEdgeShapesMatch(edge, Path.Geom.flipEdge(edge))
+
         edge = Part.Edge(
             Part.BSplineCurve(
                 [