From: David Wells <drwells@email.unc.edu>
Date: Fri, 16 Feb 2024 14:32:53 +0000 (-0500)
Subject: Assert that we only extrude quadrilateral meshes.
X-Git-Tag: relicensing~29^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F16657%2Fhead;p=dealii.git

Assert that we only extrude quadrilateral meshes.

Extruding mixed or triangle meshes requires wedges: this isn't implemented yet.
---

diff --git a/source/grid/grid_generator.cc b/source/grid/grid_generator.cc
index ad15ea7dbe..0ff6e12eb9 100644
--- a/source/grid/grid_generator.cc
+++ b/source/grid/grid_generator.cc
@@ -7067,6 +7067,9 @@ namespace GridGenerator
              "The number of slices for extrusion must be at least 2."));
     Assert(std::is_sorted(slice_coordinates.begin(), slice_coordinates.end()),
            ExcMessage("Slice z-coordinates should be in ascending order"));
+    Assert(input.all_reference_cells_are_hyper_cube(),
+           ExcMessage(
+             "This function is only implemented for quadrilateral meshes."));
 
     const auto priorities = [&]() -> std::vector<types::manifold_id> {
       // if a non-empty (i.e., not the default) vector is given for