From 93e8f29e5d683e2949310b3037b1d90f3eeeab0b Mon Sep 17 00:00:00 2001
From: "jiangkai.zhao" <jiangkai.zhao@bambulab.com>
Date: Tue, 1 Apr 2025 16:49:50 +0800
Subject: [PATCH] Fix:False positive in collision detection

jira: none
Change-Id: I4f2c88ac95273086e2f77e60f5856415aba83741
---
 src/libslic3r/GCode/WipeTower.cpp | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/libslic3r/GCode/WipeTower.cpp b/src/libslic3r/GCode/WipeTower.cpp
index d8566ae05..4a54aefc7 100644
--- a/src/libslic3r/GCode/WipeTower.cpp
+++ b/src/libslic3r/GCode/WipeTower.cpp
@@ -3303,8 +3303,11 @@ WipeTower::ToolChangeResult WipeTower::finish_layer_new(bool extrude_perimeter,
     //}
     Polygon outer_wall;
     outer_wall = generate_support_wall_new(writer, wt_box, feedrate, first_layer, m_use_rib_wall, extrude_perimeter, m_use_gap_wall);
-    if (extrude_perimeter)
-        m_outer_wall[m_z_pos].push_back(to_polyline(outer_wall));
+    if (extrude_perimeter) {
+        Polyline shift_polyline = to_polyline(outer_wall);
+        shift_polyline.translate(0, scaled(m_y_shift));
+        m_outer_wall[m_z_pos].push_back(shift_polyline);
+    }
     // brim chamfer
     float spacing = m_perimeter_width - m_layer_height * float(1. - M_PI_4);
     // How many perimeters shall the brim have?