From 9ffa7f140cb188ad75f750ffabe41bb0a24a20b8 Mon Sep 17 00:00:00 2001
From: Josh Hawkins <32435876+hawkeye217@users.noreply.github.com>
Date: Mon, 7 Jul 2025 07:35:55 -0500
Subject: [PATCH] Fixes (#18935)

* Sort names alphabetically in face library dropdown

* fix potential divide by zero in misconfigured speed zones
---
 frigate/util/velocity.py      | 5 +++++
 web/src/pages/FaceLibrary.tsx | 6 +++++-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/frigate/util/velocity.py b/frigate/util/velocity.py
index 207215bfb..61f1a0d94 100644
--- a/frigate/util/velocity.py
+++ b/frigate/util/velocity.py
@@ -59,6 +59,11 @@ def create_ground_plane(zone_points, distances):
         :param y: Y-coordinate in the image
         :return: Real-world distance per pixel at the given (x, y) coordinate
         """
+
+        # Return 0 if divide by zero would occur
+        if (B[0] - A[0]) == 0 or (D[1] - A[1]) == 0:
+            return 0
+
         # Normalize x and y within the zone
         x_norm = (x - A[0]) / (B[0] - A[0])
         y_norm = (y - A[1]) / (D[1] - A[1])
diff --git a/web/src/pages/FaceLibrary.tsx b/web/src/pages/FaceLibrary.tsx
index cf3929de9..54040e2ad 100644
--- a/web/src/pages/FaceLibrary.tsx
+++ b/web/src/pages/FaceLibrary.tsx
@@ -87,7 +87,11 @@ export default function FaceLibrary() {
 
   const faces = useMemo<string[]>(
     () =>
-      faceData ? Object.keys(faceData).filter((face) => face != "train") : [],
+      faceData
+        ? Object.keys(faceData)
+            .filter((face) => face != "train")
+            .sort()
+        : [],
     [faceData],
   );
   const faceImages = useMemo<string[]>(