add default value to interpol

AMDiS/src/DOFVector.h

@@ -540,7 +540,7 @@ namespace AMDiS {
      */
     void interpol(AbstractFunction<T, WorldVector<double> > *fct);
 
-    void interpol(DOFVector<T> *v, double factor);
+    void interpol(DOFVector<T> *v, double factor=1.0);
 
     /// Writes the data of the DOFVector to an output stream.
     void serialize(std::ostream &out)