--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/+multiblock/BoundaryGroup.m	Mon Jun 13 16:59:02 2016 +0200
@@ -0,0 +1,51 @@
+% BoundaryGroup defines a boundary grouping in a multiblock grid.
+classdef BoundaryGroup
+    properties
+        blockIDs
+        names
+    end
+
+    methods
+        function obj = BoundaryGroup(varargin)
+            % Input arguemnts are arbitrary number or 1x2 cell arrays
+            % representing each boundary in the group.
+            % The 1st element of the cell array is an integer defining which grid it belongs to.
+            % The 2nd element of the cell array is the name of the boundary within the block.
+            %
+            % Ex:
+            %   bg = multiblock.BoundaryGroup({1,'n'},{1,'s'},{2,'s'})
+
+
+            obj.blockIDs = [];
+            obj.names = {};
+            for i = 1:length(varargin)
+                if ~iscell(varargin{i}) || ~all(size(varargin{i}) == [1 2])
+                    error('multiblock:BoundaryGroup:BoundaryGroup:InvalidInput', 'Inputs must be 1x2 cell arrays');
+                end
+                obj.blockIDs(i) = varargin{i}{1};
+                obj.names{i} = varargin{i}{2};
+            end
+        end
+
+        function display(obj, name)
+
+            disp(' ')
+            disp([name, ' ='])
+            disp(' ')
+
+            if length(obj.names) == 1
+                fprintf('    {}\n\n')
+                return
+            end
+
+            fprintf('    {')
+
+            fprintf('%d:%s', obj.blockIDs(1), obj.names{1})
+            for i = 2:length(obj.names)
+                fprintf(', %d:%s', obj.blockIDs(i), obj.names{i});
+            end
+
+            fprintf('}\n\n')
+        end
+    end
+end
\ No newline at end of file