From 47bba48b3435e666205e4df136936467988ce2f2 Mon Sep 17 00:00:00 2001
From: enricoturri1966 <enrico.turri@prusa3d.cz>
Date: Tue, 26 Nov 2024 10:03:18 +0100
Subject: [PATCH] SPE-2577 - Fixed processing of gcodes when using absolute
 values for E (#13623)

---
 src/libslic3r/GCode/GCodeProcessor.cpp | 9 +++++----
 src/libslic3r/GCode/GCodeProcessor.hpp | 4 ----
 2 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/src/libslic3r/GCode/GCodeProcessor.cpp b/src/libslic3r/GCode/GCodeProcessor.cpp
index 8bfe0ff3b8..92059d9f03 100644
--- a/src/libslic3r/GCode/GCodeProcessor.cpp
+++ b/src/libslic3r/GCode/GCodeProcessor.cpp
@@ -2844,12 +2844,13 @@ void GCodeProcessor::process_G1(const std::array<std::optional<double>, 4>& axes
             && m_extrusion_role != GCodeExtrusionRole::OverhangPerimeter
         )
     )) {
-        const Vec3f curr_pos(m_end_position[X], m_end_position[Y], m_end_position[Z]);
+        const AxisCoords curr_pos = m_end_position;
         const Vec3f new_pos = m_result.moves.back().position - m_extruder_offsets[m_extruder_id];
-
-        m_end_position = create_axis_coords(new_pos + m_z_offset * Vec3f::UnitZ());
+        for (unsigned char a = X; a < E; ++a) {
+            m_end_position[a] = double(new_pos[a]);
+        }
         store_move_vertex(EMoveType::Seam);
-        m_end_position = create_axis_coords(curr_pos);
+        m_end_position = curr_pos;
 
         m_seams_detector.activate(false);
     } else if (type == EMoveType::Extrude && m_extrusion_role == GCodeExtrusionRole::ExternalPerimeter) {
diff --git a/src/libslic3r/GCode/GCodeProcessor.hpp b/src/libslic3r/GCode/GCodeProcessor.hpp
index 79d4a9094e..b218c95dc0 100644
--- a/src/libslic3r/GCode/GCodeProcessor.hpp
+++ b/src/libslic3r/GCode/GCodeProcessor.hpp
@@ -779,10 +779,6 @@ namespace Slic3r {
 
         double extract_absolute_position_on_axis(Axis axis, const GCodeReader::GCodeLine& line, double area_filament_cross_section);
 
-        AxisCoords create_axis_coords(const Vec3f &vec) {
-            return AxisCoords{vec[0], vec[1], vec[2], 0};
-        }
-
    };
 
 } /* namespace Slic3r */