From 7ac6cedff80b810350aaf3261c62131ceff4ca75 Mon Sep 17 00:00:00 2001
From: "jiaxi.chen" <jiaxi.chen@bambulab.com>
Date: Thu, 27 Mar 2025 10:50:43 +0800
Subject: [PATCH] FIX: crash when xy_dist=0 in organic tree

jira: STUDIO-11158
Change-Id: Id98a196daf5fdc128e0c10de7d0a8f19c9014c3b
---
 src/libslic3r/Support/TreeModelVolumes.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/libslic3r/Support/TreeModelVolumes.cpp b/src/libslic3r/Support/TreeModelVolumes.cpp
index f87d69485..d7750431f 100644
--- a/src/libslic3r/Support/TreeModelVolumes.cpp
+++ b/src/libslic3r/Support/TreeModelVolumes.cpp
@@ -662,6 +662,7 @@ void TreeModelVolumes::calculateAvoidance(const std::vector<RadiusLayerPair> &ke
             // Limiting the offset step so that unioning the shrunk latest_avoidance with the current layer collisions
             // will not create gaps in the resulting avoidance region letting a tree support branch tunneling through an object wall.
             float move_step      = 1.9 * std::max(task.radius, m_current_min_xy_dist);
+            if (move_step < EPSILON) return;
             int   move_steps     = round_up_divide<int>(max_move, move_step);
             assert(move_steps > 0);
             float last_move_step = max_move - (move_steps - 1) * move_step;