diff --git a/Apps/Common/SIMSemi3D.h b/Apps/Common/SIMSemi3D.h
index 607b6f0f..26d0ab06 100644
--- a/Apps/Common/SIMSemi3D.h
+++ b/Apps/Common/SIMSemi3D.h
@@ -371,6 +371,9 @@ public:
   //! \brief Dummy method.
   int getGlobalNode(int node) const { return -1; }
 
+  //! \brief Returns the number of bases in the model.
+  int getNoBasis() const { return m_planes[0]->getNoBasis(); }
+
 protected:
   std::vector<PlaneSolver*> m_planes; //!< Planar solvers