From 40531c8ad951598051ed9167bc40e7491f462b4e Mon Sep 17 00:00:00 2001
From: "salt.wei" <salt.wei@bambulab.com>
Date: Thu, 11 Aug 2022 21:18:19 +0800
Subject: [PATCH] ENH: fix crash when add G2_G3 in start gcode

Signed-off-by: salt.wei <salt.wei@bambulab.com>
Change-Id: I7d7133122b0d7e478fd2b0fa8849be09cb0c8353
(cherry picked from commit 2095960596e85ef970016701afd201c9bd36b262)
---
 src/libslic3r/GCode/GCodeProcessor.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libslic3r/GCode/GCodeProcessor.cpp b/src/libslic3r/GCode/GCodeProcessor.cpp
index 0da0bca55..73fcb6fbb 100644
--- a/src/libslic3r/GCode/GCodeProcessor.cpp
+++ b/src/libslic3r/GCode/GCodeProcessor.cpp
@@ -2998,7 +2998,7 @@ void  GCodeProcessor::process_G2_G3(const GCodeReader::GCodeLine& line)
         block.role = m_extrusion_role;
         block.distance = delta_xyz;
         block.g1_line_id = m_g1_line_id;
-        block.layer_id = m_layer_id;
+        block.layer_id = std::max<unsigned int>(1, m_layer_id);
 
         // BBS: calculates block cruise feedrate
         // For arc move, we need to limite the cruise according to centripetal acceleration which is