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-rw-r--r--docs/user_guide/gaze_analysis_pipeline/configuration_and_execution.md17
1 files changed, 14 insertions, 3 deletions
diff --git a/docs/user_guide/gaze_analysis_pipeline/configuration_and_execution.md b/docs/user_guide/gaze_analysis_pipeline/configuration_and_execution.md
index 0edbef3..c53cfda 100644
--- a/docs/user_guide/gaze_analysis_pipeline/configuration_and_execution.md
+++ b/docs/user_guide/gaze_analysis_pipeline/configuration_and_execution.md
@@ -94,14 +94,25 @@ In the example file, the choosen analysis algorithms are the [Basic](../../argaz
## Pipeline execution
-Timestamped gaze positions have to be passed one by one to [ArFrame.look](../../argaze.md/#argaze.ArFeatures.ArFrame.look) method to execute the whole instantiated pipeline.
+Timestamped gaze positions have to be passed one by one to [ArFrame.look](../../argaze.md/#argaze.ArFeatures.ArFrame.look) method to execute the whole instantiated pipeline.
+
+!!! warning "Mandatory"
+
+ [ArFrame.look](../../argaze.md/#argaze.ArFeatures.ArFrame.look) method must be called from a *try* block to catch pipeline exceptions.
```python
# Assuming that timestamped gaze positions are available
...
- # Look ArFrame at a timestamped gaze position
- ar_frame.look(timestamp, gaze_position)
+ try:
+
+ # Look ArFrame at a timestamped gaze position
+ ar_frame.look(timestamp, gaze_position)
+
+ # Do something with pipeline exception
+ except Exception as e:
+
+ ...
```
!!! note ""