From ac9babb9ad8a0f416aa543e9723791c424e0c5d9 Mon Sep 17 00:00:00 2001
From: Artur Glavic <artur.glavic@psi.ch>
Date: Fri, 10 Oct 2025 09:26:40 +0200
Subject: [PATCH] Fix unwanted matplotlib import in projection.py

---
 eos/projection.py | 5 +++--
 requirements.txt  | 1 +
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/eos/projection.py b/eos/projection.py
index fa81180..f4949d2 100644
--- a/eos/projection.py
+++ b/eos/projection.py
@@ -10,8 +10,6 @@ from typing import List, Tuple, Union
 import numpy as np
 from dataclasses import dataclass
 
-from matplotlib.colors import LogNorm
-
 from .event_data_types import EventDatasetProtocol
 from .instrument import Detector, LZGrid
 from .normalization import LZNormalisation
@@ -312,6 +310,7 @@ class LZProjection(ProjectionInterface):
         """
         Inline update of previous plot by just updating the data.
         """
+        from matplotlib.colors import LogNorm
         if self.is_normalized:
             I = self.data.ref
         else:
@@ -458,6 +457,7 @@ class YZProjection(ProjectionInterface):
         """
         Inline update of previous plot by just updating the data.
         """
+        from matplotlib.colors import LogNorm
         if isinstance(self._graph.norm, LogNorm):
             vmin = self.data.I[(self.data.I>0)].min()*0.5
         else:
@@ -597,6 +597,7 @@ class TofZProjection(ProjectionInterface):
         """
         Inline update of previous plot by just updating the data.
         """
+        from matplotlib.colors import LogNorm
         if isinstance(self._graph.norm, LogNorm):
             vmin = self.data.I[(self.data.I>0)].min()*0.5
         else:
diff --git a/requirements.txt b/requirements.txt
index 8dddb81..5d8f474 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,5 +2,6 @@ numpy
 h5py
 orsopy
 numba
+matplotlib
 backports.strenum; python_version<"3.11"
 backports.zoneinfo; python_version<"3.9"