From 70b25e34640f1e30bb95b4a7a7b1d88d5aa6b0b1 Mon Sep 17 00:00:00 2001
From: Valentin Valls <valentin.valls@esrf.fr>
Date: Wed, 19 May 2021 18:36:45 +0200
Subject: [PATCH] Add warning in case of inconsistency

---
 bliss/scanning/scan_info.py | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/bliss/scanning/scan_info.py b/bliss/scanning/scan_info.py
index 86e8bd6ad9..a972cd7e9c 100644
--- a/bliss/scanning/scan_info.py
+++ b/bliss/scanning/scan_info.py
@@ -152,6 +152,10 @@ API
 import typing
 import typeguard
 import numbers
+import logging
+
+
+_logger = logging.getLogger(__name__)
 
 
 class ScanInfo(dict):
@@ -257,6 +261,17 @@ class ScanInfo(dict):
         if axis_points_hint is not None:
             meta["axis-points-hint"] = axis_points_hint
 
+        if axis_kind is not None:
+            # If a kind is set the orientation of the scan have to be known
+            if start is None:
+                _logger.warning(
+                    "A 'start' position for the channel '%s' should be set", name
+                )
+            if stop is None:
+                _logger.warning(
+                    "A 'stop' position for the channel '%s' should be set", name
+                )
+
     @typeguard.typechecked
     def add_scatter_plot(
         self,
-- 
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