Handle null output case for vlm chart mxmn

2022-04-23 15:33:40 -04:00 · 2022-04-23 15:33:40 -04:00 · 4cd8668059
parent 1fbfbf4e4c
commit 4cd8668059
1 changed files with 3 additions and 1 deletions
--- a/piker/ui/_display.py
+++ b/piker/ui/_display.py
@ -106,7 +106,9 @@ def chart_maxmin(

    mx_vlm_in_view = 0
    if vlm_chart:
-        _, mx_vlm_in_view = vlm_chart.maxmin()
+        out = vlm_chart.maxmin()
+        if out:
+            _, mx_vlm_in_view = out

    return (
        last_bars_range,