From a4e89ab1f5b34286be967738760374c35188c15b Mon Sep 17 00:00:00 2001
From: "zhimin.zeng" <zhimin.zeng@bambulab.com>
Date: Tue, 6 Sep 2022 12:26:12 +0800
Subject: [PATCH] FIX: model moves when adding negative volume

Change-Id: I49fdfa8324751874203bde42a692c3babc901623
(cherry picked from commit 550286d7314cc20da5ea590e3dd19772daceda16)
---
 src/slic3r/GUI/GUI_ObjectList.cpp | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/src/slic3r/GUI/GUI_ObjectList.cpp b/src/slic3r/GUI/GUI_ObjectList.cpp
index 944a8b8ec..80971189b 100644
--- a/src/slic3r/GUI/GUI_ObjectList.cpp
+++ b/src/slic3r/GUI/GUI_ObjectList.cpp
@@ -5052,9 +5052,7 @@ void ObjectList::apply_object_instance_transfrom_to_all_volumes(ModelObject *mod
     model_object->ensure_on_bed();
     // keep new instance center the same as the original center
     model_object->translate(-original_instance_center);
-    model_object->origin_translation += original_instance_center;
-    model_object->translate_instances(model_object->origin_translation);
-    model_object->origin_translation = Vec3d::Zero();
+    model_object->translate_instances(original_instance_center);
 
     // update the cache data in selection to keep the data of ModelVolume and GLVolume are consistent
     wxGetApp().plater()->update();