From 4ad7b073c3411a62488ae03279d5df6c42fcbb08 Mon Sep 17 00:00:00 2001
From: Tyler Goodlet <jgbt@protonmail.com>
Date: Sat, 25 Jun 2022 18:51:42 -0400
Subject: [PATCH] Proxy through input y-mx/mn from `xy_downsample()`

---
 piker/ui/_pathops.py | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/piker/ui/_pathops.py b/piker/ui/_pathops.py
index 83b46f43..bbdde19a 100644
--- a/piker/ui/_pathops.py
+++ b/piker/ui/_pathops.py
@@ -49,12 +49,17 @@ def xy_downsample(
 
     x_spacer: float = 0.5,
 
-) -> tuple[np.ndarray, np.ndarray]:
+) -> tuple[
+    np.ndarray,
+    np.ndarray,
+    float,
+    float,
+]:
 
     # downsample whenever more then 1 pixels per datum can be shown.
     # always refresh data bounds until we get diffing
     # working properly, see above..
-    bins, x, y = ds_m4(
+    bins, x, y, ymn, ymx = ds_m4(
         x,
         y,
         uppx,
@@ -67,7 +72,7 @@ def xy_downsample(
     )).flatten()
     y = y.flatten()
 
-    return x, y
+    return x, y, ymn, ymx
 
 
 @njit(