From 5b08e9cba3b44788ba426192e6fad5b8d5f9184e Mon Sep 17 00:00:00 2001
From: Tyler Goodlet <jgbt@protonmail.com>
Date: Mon, 28 Nov 2022 09:44:33 -0500
Subject: [PATCH] Add breakpoint on -ve range for now

---
 piker/data/_compression.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/piker/data/_compression.py b/piker/data/_compression.py
index c66b3e58..aed1d7d3 100644
--- a/piker/data/_compression.py
+++ b/piker/data/_compression.py
@@ -190,6 +190,8 @@ def ds_m4(
     if xrange is None:
         x_end = x[-1]  # x end value/highest in domain
         xrange = (x_end - x_start)
+        if xrange < 0:
+            breakpoint()
 
     # XXX: always round up on the input pixels
     # lnx = len(x)