Facepalm, get the first x value not the array..

pikers · Jun 22, 2022 · afc95b8 · afc95b8
1 parent 14c98d8
commit afc95b8
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/piker/ui/_flows.py b/piker/ui/_flows.py
@@ -753,7 +753,9 @@ def draw_last(
             try:
                 iuppx = x[-uppx]
             except IndexError:
-                iuppx = x
+                # we're less then an x-px wide so just grab the start
+                # datum index.
+                iuppx = x[0]
 
             dsg._last_line = QLineF(
                 iuppx, ymn,