From a20b3593bd21fa4279c2ed9fbc18b43ef9df51dc Mon Sep 17 00:00:00 2001
From: Sanjaiyan Parthipan <parthipankalayini@gmail.com>
Date: Sun, 20 Sep 2026 22:01:24 +0530
Subject: [PATCH] fix(export): prevent vis-network stack overflow crash on HTML
 render

Resolves the `BarnesHutSolver.js` maximum call stack size exceeded
error. By explicitly initializing node X/Y coordinates using a
sunflower spiral (Fermat's spiral) formula, nodes no longer spawn
stacked on top of each other. This prevents `avoidOverlap` physics
forces from dividing by zero and exploding into infinite values
on the very first frame.
---
 graphify/exporters/html.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/graphify/exporters/html.py b/graphify/exporters/html.py
index 62ba5b2a8..7806764fe 100644
--- a/graphify/exporters/html.py
+++ b/graphify/exporters/html.py
@@ -151,6 +151,8 @@ function esc(s) {{
 const nodesDS = new vis.DataSet(RAW_NODES.map(n => ({{
   id: n.id, label: n.label, color: n.color, size: n.size,
   font: n.font, title: n.title,
+  x: 30 * Math.sqrt(i) * Math.cos(i * 2.4),
+  y: 30 * Math.sqrt(i) * Math.sin(i * 2.4),
   _community: n.community, _community_name: n.community_name,
   _source_file: n.source_file, _file_type: n.file_type, _degree: n.degree,
 }})));