From 3103ff9aa396b67ebcd7b897dbf932a30eafbc00 Mon Sep 17 00:00:00 2001
From: Jon Evans <jon@craftyjon.com>
Date: Sun, 4 Jul 2021 12:09:59 -0400
Subject: [PATCH] Fix display of filled polygons with arcs in the outline

---
 libs/kimath/src/geometry/shape_poly_set.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libs/kimath/src/geometry/shape_poly_set.cpp b/libs/kimath/src/geometry/shape_poly_set.cpp
index b857640b6e..e9dafbf0ae 100644
--- a/libs/kimath/src/geometry/shape_poly_set.cpp
+++ b/libs/kimath/src/geometry/shape_poly_set.cpp
@@ -2324,7 +2324,9 @@ void SHAPE_POLY_SET::CacheTriangulation( bool aPartition )
     if( aPartition )
     {
         // This partitions into regularly-sized grids (1cm in pcbnew)
-        partitionPolyIntoRegularCellGrid( *this, 1e7, tmpSet );
+        SHAPE_POLY_SET flattened( *this );
+        flattened.ClearArcs();
+        partitionPolyIntoRegularCellGrid( flattened, 1e7, tmpSet );
     }
     else
     {