From: Peter Munch <peterrmuench@gmail.com>
Date: Sun, 8 May 2022 14:32:12 +0000 (+0200)
Subject: Implement ReferenceCell::face_to_cell_lines() for pyramids and wedges
X-Git-Tag: v9.4.0-rc1~262^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ba8ef1192de54e0d77345b6a8db576db0bb9d65d;p=dealii.git

Implement ReferenceCell::face_to_cell_lines() for pyramids and wedges
---

diff --git a/include/deal.II/grid/reference_cell.h b/include/deal.II/grid/reference_cell.h
index 7e38aa9bc1..5431a59092 100644
--- a/include/deal.II/grid/reference_cell.h
+++ b/include/deal.II/grid/reference_cell.h
@@ -1404,6 +1404,8 @@ ReferenceCell::face_to_cell_lines(const unsigned int  face,
   AssertIndexRange(face, n_faces());
   AssertIndexRange(line, face_reference_cell(face).n_lines());
 
+  static constexpr unsigned int X = numbers::invalid_unsigned_int;
+
   if (*this == ReferenceCells::Vertex)
     {
       Assert(false, ExcNotImplemented());
@@ -1440,11 +1442,25 @@ ReferenceCell::face_to_cell_lines(const unsigned int  face,
     }
   else if (*this == ReferenceCells::Pyramid)
     {
-      Assert(false, ExcNotImplemented());
+      static const ndarray<unsigned int, 5, 4> table = {{{{0, 1, 2, 3}},
+                                                         {{0, 6, 4, X}},
+                                                         {{1, 5, 7, X}},
+                                                         {{2, 4, 5, X}},
+                                                         {{3, 7, 6, 2}}}};
+
+      return table[face]
+                  [standard_to_real_face_line(line, face, face_orientation)];
     }
   else if (*this == ReferenceCells::Wedge)
     {
-      Assert(false, ExcNotImplemented());
+      static const ndarray<unsigned int, 5, 4> table = {{{{0, 2, 1, X}},
+                                                         {{3, 4, 5, X}},
+                                                         {{6, 7, 0, 3}},
+                                                         {{7, 8, 1, 4}},
+                                                         {{8, 6, 5, 2}}}};
+
+      return table[face]
+                  [standard_to_real_face_line(line, face, face_orientation)];
     }
   else if (*this == ReferenceCells::Hexahedron)
     {