From dcd2a3ea1d63e93a28748701d70e3dbb6aa7d366 Mon Sep 17 00:00:00 2001
From: Paolo Massa <64010598+paolomassa@users.noreply.github.com>
Date: Tue, 28 May 2024 11:32:14 +0200
Subject: [PATCH] Fix bug in the default creation of VisMeta (#66)

* Fixed bug in the default creation of VisMeta

* Add changelog file

* Fix changelog
---
 changelog/66.bugfix.rst  | 1 +
 xrayvision/visibility.py | 6 +-----
 2 files changed, 2 insertions(+), 5 deletions(-)
 create mode 100644 changelog/66.bugfix.rst

diff --git a/changelog/66.bugfix.rst b/changelog/66.bugfix.rst
new file mode 100644
index 0000000..ba50414
--- /dev/null
+++ b/changelog/66.bugfix.rst
@@ -0,0 +1 @@
+Fix bug when creating :class:`~xrayvision.visibility.Visibilities` with default meta.
diff --git a/xrayvision/visibility.py b/xrayvision/visibility.py
index 0740c07..f7e4dfe 100644
--- a/xrayvision/visibility.py
+++ b/xrayvision/visibility.py
@@ -285,10 +285,6 @@ def __init__(
         self._uv_key = "uv"
         self._units_key = "units"
 
-        # Build meta. Make sure that phase center is included.
-        if not isinstance(meta, VisMetaABC):
-            meta = VisMeta(meta)
-
         # Construct underlying data object.
         dims = [f"dim{i}" for i in range(0, len(visibilities.shape))]
         dims[_uv_axis] = self._uv_key
@@ -307,7 +303,7 @@ def __init__(
         if phase_uncertainty is not None:
             data[self._phase_uncert_key] = (dims, phase_uncertainty.to_value(phase.unit))
         if meta is None:
-            meta = VisMeta(dict())
+            meta = VisMeta()
         vis_labels = getattr(meta, "vis_labels", None)
         if vis_labels is not None:
             if len(vis_labels) != nvis: