Rename subItemIdPerItemMatrix() to itemToItemMatrix()

This gives a generic way to access to item connectivities

src/mesh/Connectivity.hpp

@@ -239,7 +239,7 @@ public:
 
   template <TypeOfItem SubItemType,
             TypeOfItem ItemType>
-  const ConnectivityMatrix& subItemIdPerItemMatrix() const = delete;
+  const ConnectivityMatrix& itemToItemMatrix() const = delete;
 
 private:
   ConnectivityComputer m_connectivity_computer;
@@ -364,8 +364,8 @@ using Connectivity3D = Connectivity<3>;
 template <>
 template <>
 inline const ConnectivityMatrix&
-Connectivity<3>::subItemIdPerItemMatrix<TypeOfItem::node,
-                                        TypeOfItem::cell>() const
+Connectivity<3>::itemToItemMatrix<TypeOfItem::cell,
+                                  TypeOfItem::node>() const
 {
   return m_cell_to_node_matrix;
 }
@@ -375,8 +375,8 @@ using Connectivity2D = Connectivity<2>;
 template <>
 template <>
 inline const ConnectivityMatrix&
-Connectivity<2>::subItemIdPerItemMatrix<TypeOfItem::node,
-                                        TypeOfItem::cell>() const
+Connectivity<2>::itemToItemMatrix<TypeOfItem::cell,
+                                  TypeOfItem::node>() const
 {
   return m_cell_to_node_matrix;
 }
@@ -386,8 +386,8 @@ using Connectivity1D = Connectivity<1>;
 template <>
 template <>
 inline const ConnectivityMatrix&
-Connectivity<1>::subItemIdPerItemMatrix<TypeOfItem::node,
-                                        TypeOfItem::cell>() const
+Connectivity<1>::itemToItemMatrix<TypeOfItem::cell,
+                                  TypeOfItem::node>() const
 {
   return m_cell_to_node_matrix;
 }

src/scheme/SubItemValuePerItem.hpp

@@ -165,7 +165,7 @@ class SubItemValuePerItem
   SubItemValuePerItem(const ConnectivityType& connectivity)
   {
     ConnectivityMatrix connectivity_matrix
-        = connectivity.template subItemIdPerItemMatrix<SubItemType,ItemType>();
+        = connectivity.template itemToItemMatrix<ItemType,SubItemType>();
     m_host_row_map = connectivity_matrix.rowsMap();
     m_values = Kokkos::View<DataType*>("values", connectivity_matrix.numEntries());
   }