From e241e905ec6582cf45e3543173a007f7734b1cb1 Mon Sep 17 00:00:00 2001
From: YuSanka <yusanka@gmail.com>
Date: Thu, 10 Aug 2023 14:52:20 +0200
Subject: [PATCH] CutGizmo: Manually cherry-picked
 https://github.com/Prusa-Development/PrusaSlicerPrivate/commit/6dbbbfea7aa55c088c28fd55c58c02ab533bde48.
 This changed fixed cut for mirrored object

---
 src/libslic3r/CutUtils.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/libslic3r/CutUtils.cpp b/src/libslic3r/CutUtils.cpp
index ba2c3452af..09f4142dac 100644
--- a/src/libslic3r/CutUtils.cpp
+++ b/src/libslic3r/CutUtils.cpp
@@ -208,7 +208,12 @@ static void reset_instance_transformation(ModelObject* object, size_t src_instan
         auto& obj_instance = object->instances[i];
         const double rot_z = obj_instance->get_rotation().z();
         
-        obj_instance->set_transformation(Transformation(obj_instance->get_transformation().get_matrix_no_scaling_factor()));
+        Transformation inst_trafo = Transformation(obj_instance->get_transformation().get_matrix_no_scaling_factor());
+        // add respect to mirroring
+        if (obj_instance->is_left_handed())
+            inst_trafo = inst_trafo * Transformation(scale_transform(Vec3d(-1, 1, 1)));
+
+        obj_instance->set_transformation(inst_trafo);
 
         Vec3d rotation = Vec3d::Zero();
         if (!flip && !place_on_cut) {