--- a/+scheme/Utux2d.m	Wed Jan 23 10:02:13 2019 +0100
+++ b/+scheme/Utux2d.m	Tue Apr 09 21:48:30 2019 +0200
@@ -12,6 +12,7 @@
         H % Discrete norm
         H_x, H_y % Norms in the x and y directions
         Hi, Hx, Hy, Hxi, Hyi % Kroneckered norms
+        H_w, H_e, H_s, H_n % Boundary quadratures
 
         % Derivatives
         Dx, Dy
@@ -59,6 +60,10 @@
             Hxi = ops_x.HI;
             Hyi = ops_y.HI;
 
+            obj.H_w = Hy;
+            obj.H_e = Hy;
+            obj.H_s = Hx;
+            obj.H_n = Hx;
             obj.H_x = Hx;
             obj.H_y = Hy;
             obj.H = kron(Hx,Hy);
@@ -139,16 +144,7 @@
             couplingType = type.couplingType;
 
             % Get neighbour boundary operator
-            switch neighbour_boundary
-             case {'e','E','east','East'}
-                 e_neighbour = neighbour_scheme.e_e;
-             case {'w','W','west','West'}
-                 e_neighbour = neighbour_scheme.e_w;
-             case {'n','N','north','North'}
-                 e_neighbour = neighbour_scheme.e_n;
-             case {'s','S','south','South'}
-                 e_neighbour = neighbour_scheme.e_s;
-            end
+            e_neighbour = neighbour_scheme.getBoundaryOperator('e', neighbour_boundary);
 
             switch couplingType
 
@@ -197,16 +193,7 @@
             interpolationDamping = type.interpolationDamping;
 
             % Get neighbour boundary operator
-            switch neighbour_boundary
-             case {'e','E','east','East'}
-                 e_neighbour = neighbour_scheme.e_e;
-             case {'w','W','west','West'}
-                 e_neighbour = neighbour_scheme.e_w;
-             case {'n','N','north','North'}
-                 e_neighbour = neighbour_scheme.e_n;
-             case {'s','S','south','South'}
-                 e_neighbour = neighbour_scheme.e_s;
-            end
+            e_neighbour = neighbour_scheme.getBoundaryOperator('e', neighbour_boundary);
 
             switch couplingType
 
@@ -290,19 +277,29 @@
 
          end
 
+        % Returns the boundary operator op for the boundary specified by the string boundary.
+        % op        -- string
+        % boundary  -- string
+        function o = getBoundaryOperator(obj, op, boundary)
+            assertIsMember(op, {'e'})
+            assertIsMember(boundary, {'w', 'e', 's', 'n'})
+
+            o = obj.([op, '_', boundary]);
+        end
+
+        % Returns square boundary quadrature matrix, of dimension
+        % corresponding to the number of boundary points
+        %
+        % boundary -- string
+        function H_b = getBoundaryQuadrature(obj, boundary)
+            assertIsMember(boundary, {'w', 'e', 's', 'n'})
+
+            H_b = obj.(['H_', boundary]);
+        end
+
         function N = size(obj)
             N = obj.m;
         end
 
     end
-
-    methods(Static)
-        % Calculates the matrices needed for the inteface coupling between boundary bound_u of scheme schm_u
-        % and bound_v of scheme schm_v.
-        %   [uu, uv, vv, vu] = inteface_coupling(A,'r',B,'l')
-        function [uu, uv, vv, vu] = interface_coupling(schm_u,bound_u,schm_v,bound_v)
-            [uu,uv] = schm_u.interface(bound_u,schm_v,bound_v);
-            [vv,vu] = schm_v.interface(bound_v,schm_u,bound_u);
-        end
-    end
-end
\ No newline at end of file
+end