From fd2540ce8fcbefff378b86a5d8cf61ec91f4b095 Mon Sep 17 00:00:00 2001
From: dsc <dsc@anybodytech.com>
Date: Wed, 1 Apr 2026 15:47:09 +0200
Subject: [PATCH] Add a check in marker driver class template to check for
 error between raw marker data and filtered marker data.

---
 Tools/AnyMocap/CreateMarkerDriverClass.any | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Tools/AnyMocap/CreateMarkerDriverClass.any b/Tools/AnyMocap/CreateMarkerDriverClass.any
index b781da5af..72705b6fd 100644
--- a/Tools/AnyMocap/CreateMarkerDriverClass.any
+++ b/Tools/AnyMocap/CreateMarkerDriverClass.any
@@ -384,10 +384,20 @@ AnyMessage TestMarkerExist ={
             Data = .LowPassFilter(.MarkerDataRef.Pos');
           };
 
+        AnyFloat PosDiff_Filt_NoFilt= FilteredPosInterpol.Data'-MarkerDataRef.Pos;
+        AnyFloat Norm_PosDiff_Filt_NoFilt= vnorm(PosDiff_Filt_NoFilt);
+        AnyFloat Max_Norm_PosDiff_Filt_NoFilt= max(Norm_PosDiff_Filt_NoFilt);
+        AnyInt Warn_Filt_Freq = warn(ltfun(Max_Norm_PosDiff_Filt_NoFilt,0.02),"Check filter cut-off frequency. It may be too low. Error between raw data and filtered data is "+strval(Max_Norm_PosDiff_Filt_NoFilt,"%.3f"));
+
         #else
 
         AnyParamFun &InterpolRef = MarkerDataRef.PosInterpol;
 
+        AnyFloat PosDiff_Filt_NoFilt= InterpolRef.Data'-MarkerDataRef.Pos;
+        AnyFloat Norm_PosDiff_Filt_NoFilt= vnorm(PosDiff_Filt_NoFilt);
+        AnyFloat Max_Norm_PosDiff_Filt_NoFilt= max(Norm_PosDiff_Filt_NoFilt);
+        AnyInt Warn_Filt_Freq = warn(ltfun(Max_Norm_PosDiff_Filt_NoFilt,0.02),"Check filter cut-off frequency. It may be too low. Error between raw data and filtered data is "+strval(Max_Norm_PosDiff_Filt_NoFilt,"%.3f"));
+
         #endif
 
         WeightFun={.MarkerWeightsPtr};