From c640fb854f276b07a7b93a1e2b094022e6e210b2 Mon Sep 17 00:00:00 2001
From: PavelMikus <pavel.mikus.mail@seznam.cz>
Date: Wed, 9 Mar 2022 12:02:18 +0100
Subject: [PATCH] bug fix: using trafo() instead of trafo_centred() caused
 misalignment between occlusion mesh and seam candidates

---
 src/libslic3r/GCode/SeamPlacerNG.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libslic3r/GCode/SeamPlacerNG.cpp b/src/libslic3r/GCode/SeamPlacerNG.cpp
index 8ab76c9765..d585bb09cc 100644
--- a/src/libslic3r/GCode/SeamPlacerNG.cpp
+++ b/src/libslic3r/GCode/SeamPlacerNG.cpp
@@ -541,7 +541,7 @@ void compute_global_occlusion(GlobalModelInfo &result, const PrintObject *po) {
     BOOST_LOG_TRIVIAL(debug)
     << "SeamPlacer: build AABB tree for raycasting and gather occlusion info: start";
 // Build AABB tree for raycasting
-    auto obj_transform = po->trafo();
+    auto obj_transform = po->trafo_centered();
     indexed_triangle_set triangle_set;
     //add all parts
     for (const ModelVolume *model_volume : po->model_object()->volumes) {