Change disp to warning.

+mafe/ConstraintNode.m

@@ -26,7 +26,7 @@ classdef ConstraintNode < mafe.Constraint
                 obj.cval = [ cval(1) * ones(1,length(obj.node)), cval(2) * ones(1,length(obj.node)) ]
             end
             if length(obj.cval) ~= length(obj.node)*length(obj.cdof)
-                disp('ConstraintNode: Error with given number of values != num nodes * num doftypes!')
+                warning('ConstraintNode: Error with given number of values != num nodes * num doftypes!')
             end
         end
         % ----------------------------------------------------------------------
@@ -39,7 +39,7 @@ classdef ConstraintNode < mafe.Constraint
                 dof = find( [self.node.dof] == cdof );
                 % check
                 if length(dof) ~= length(self.node)
-                    disp('ConstraintNode:getDofSysIndices() --> Node missing requested dof!');
+                    warning('ConstraintNode:getDofSysIndices() --> Node missing requested dof!');
                 end
                 % get global dof indices
                 ndi = [ self.node.idx ];