From 047472dea5e2f44843c09323ea1dad5335b29349 Mon Sep 17 00:00:00 2001
From: Matthias Wirth <matthias.wirth@gmail.com>
Date: Thu, 27 Feb 2025 00:05:44 +0000
Subject: [PATCH] add special value in heatmap / replay for unknown altitude

---
 html/script.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/html/script.js b/html/script.js
index 3b9fe9a..cc40b7d 100644
--- a/html/script.js
+++ b/html/script.js
@@ -7446,6 +7446,8 @@ function drawHeatmap() {
                     alt |= -65536;
                 if (alt == -123)
                     alt = 'ground';
+                else if (alt == -124)
+                    alt = null;
                 else
                     alt *= 25;
 
@@ -7930,6 +7932,8 @@ function replayStep(arg) {
             alt |= -65536;
         if (alt == -123)
             alt = 'ground';
+        else if (alt == -124)
+            alt = null;
         else
             alt *= 25;