From eb35ffc0de66b93e862b40e28a5eac3c0f45c717 Mon Sep 17 00:00:00 2001
From: Sgr A* VMT <1611902585@qq.com>
Date: Mon, 29 Jan 2024 10:33:47 +0000
Subject: [PATCH] update idm.py.

Signed-off-by: Sgr A* VMT <1611902585@qq.com>
---
 idm.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/idm.py b/idm.py
index 61ec483..12f715f 100644
--- a/idm.py
+++ b/idm.py
@@ -469,7 +469,9 @@ class IDMProbe:
         if axis_twist_compensation is not None:
             z_compensation = (
                 axis_twist_compensation.get_z_compensation_value(pos))
-        sample["dist"] = self.freq_to_dist(sample["freq"], sample["temp"])+z_compensation
+        sample["dist"] = self.freq_to_dist(sample["freq"], sample["temp"])
+        if sample["dist"]~=None:
+            sample["dist"]=sample["dist"]+z_compensation
         sample["pos"] = pos
         sample["vel"] = vel