From 2d12ab337feb9f3ebe72301668b0594ab7caa9c6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andreas=20Kl=C3=B6ckner?= <inform@tiker.net>
Date: Tue, 28 Jul 2020 18:15:12 -0500
Subject: [PATCH] Vis: Assert equidistant-ness before returning a
 VTKLagrangeConnectivity

---
 meshmode/discretization/visualization.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/meshmode/discretization/visualization.py b/meshmode/discretization/visualization.py
index 2d908b8f..5e20d221 100644
--- a/meshmode/discretization/visualization.py
+++ b/meshmode/discretization/visualization.py
@@ -420,6 +420,7 @@ class Visualizer(object):
     @property
     @memoize_method
     def _vtk_lagrange_connectivity(self):
+        assert self.is_equidistant
         return VTKLagrangeConnectivity(self.connection)
 
     def write_high_order_vtk_file(self, file_name, names_and_fields,
-- 
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