From c46fab2f8f48893d530a23848a660c0b51ec592b Mon Sep 17 00:00:00 2001
From: Chris Mackey <chris@ladybug.tools>
Date: Wed, 28 Aug 2024 14:26:18 -0700
Subject: [PATCH] fix(room2d): Fix bug introduced when capping planar holes in
 rooms

---
 dragonfly/room2d.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dragonfly/room2d.py b/dragonfly/room2d.py
index 4cc7ba72..0ad083b1 100644
--- a/dragonfly/room2d.py
+++ b/dragonfly/room2d.py
@@ -4111,6 +4111,8 @@ def _cap_planar_holes(self, room_polyface, roof_face_i, tolerance):
         """
         # join all of the naked edges into closed loops
         naked_edges = room_polyface.naked_edges
+        if len(naked_edges) == 0:
+            return room_polyface, roof_face_i
         joined_loops = Polyline3D.join_segments(naked_edges, tolerance)
 
         # create Face3D from any closed planar loops