From 8715095769ae5df67fc0f9d372ecadfd7be0b920 Mon Sep 17 00:00:00 2001
From: Noisyfox <timemanager.rick@gmail.com>
Date: Tue, 28 Jan 2025 00:50:08 +0800
Subject: [PATCH] Fix error "Coordinate outside allowed range"

---
 src/libslic3r/Support/TreeSupport.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/libslic3r/Support/TreeSupport.cpp b/src/libslic3r/Support/TreeSupport.cpp
index a1faf1d06d5..3de1c5127cb 100644
--- a/src/libslic3r/Support/TreeSupport.cpp
+++ b/src/libslic3r/Support/TreeSupport.cpp
@@ -65,6 +65,9 @@ inline Point turn90_ccw(const Point pt)
 inline Point normal(Point pt, double scale)
 {
     double length = scale_(sqrt(vsize2_with_unscale(pt)));
+    if (length < SCALED_EPSILON) {
+        return pt;
+    }
 
     return pt * (scale / length);
 }