FIX: Improve the accuracy of utils.delta_time (#512)

theOehrly · Feb 12, 2024 · 7094219 · 7094219
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commit 7094219
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diff --git a/fastf1/tests/mpl-baseline/test_doc_example_delta_time.png b/fastf1/tests/mpl-baseline/test_doc_example_delta_time.png
diff --git a/fastf1/utils.py b/fastf1/utils.py
@@ -105,7 +105,8 @@ def mini_pro(stream):
         )
 
     ltime = mini_pro(comp['Time'].dt.total_seconds().to_numpy())
-    ldistance = mini_pro(comp['Distance'].to_numpy())
+    multiplier = ref.Distance.iat[-1]/comp.Distance.iat[-1]
+    ldistance = mini_pro(comp['Distance'].to_numpy())*multiplier
     lap_time = np.interp(ref['Distance'], ldistance, ltime)
 
     delta = lap_time - ref['Time'].dt.total_seconds()