From 94b6e7b78b34e2f225ef7361d3a9251d05da6de2 Mon Sep 17 00:00:00 2001
From: "zhimin.zeng" <zhimin.zeng@bambulab.com>
Date: Tue, 29 Apr 2025 15:58:39 +0800
Subject: [PATCH] FIX: Add protection to prevent inf use_m

jira: none
Change-Id: I37b4a032c0504200b4b97c3d63744ea7e5962b66
---
 src/libslic3r/Format/bbs_3mf.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/libslic3r/Format/bbs_3mf.cpp b/src/libslic3r/Format/bbs_3mf.cpp
index 7dea34b7d..ad82add0c 100644
--- a/src/libslic3r/Format/bbs_3mf.cpp
+++ b/src/libslic3r/Format/bbs_3mf.cpp
@@ -602,7 +602,8 @@ void PlateData::parse_filament_info(GCodeProcessorResult *result)
     std::vector<float>        m_filament_densities          = result->filament_densities;
     auto get_used_filament_from_volume = [m_filament_diameters, m_filament_densities](double volume, int extruder_id) {
         double                    koef = 0.001;
-        std::pair<double, double> ret = {koef * volume / (PI * sqr(0.5 * m_filament_diameters[extruder_id])), volume * m_filament_densities[extruder_id] * 0.001};
+        double                    section_area = PI * sqr(0.5 * m_filament_diameters[extruder_id]);
+        std::pair<double, double> ret = {section_area < EPSILON ? 0 : (koef * volume / section_area), volume * m_filament_densities[extruder_id] * 0.001};
         return ret;
     };