ADD: OpenDEMDirectory(const std::string& ) method to ElevDatabaseHeightAboveMSLFunction

Code/Projections/otbElevDatabaseHeightAboveMSLFunction.h

@@ -92,6 +92,7 @@ public:
 
   /** Try to open the DEM directory. */
   virtual void OpenDEMDirectory(const char* DEMDirectory);
+  virtual void OpenDEMDirectory(const std::string&  DEMDirectory);
 
   /** Set the default height above ellipsoid in case no information is available*/
   virtual void SetDefaultHeightAboveEllipsoid(double h);

Code/Projections/otbElevDatabaseHeightAboveMSLFunction.txx

@@ -88,6 +88,14 @@ ElevDatabaseHeightAboveMSLFunction<TOutputPixel, TCoordRep, NPointDimension>
 
 }
 
+template <class TOutputPixel, class TCoordRep, unsigned int NPointDimension>
+void
+ElevDatabaseHeightAboveMSLFunction<TOutputPixel, TCoordRep, NPointDimension>
+::OpenDEMDirectory(const std::string& DEMDirectory)
+{
+  this->OpenDEMDirectory(DEMDirectory.c_str());
+}
+
 template <class TOutputPixel, class TCoordRep, unsigned int NPointDimension>
 void
 ElevDatabaseHeightAboveMSLFunction<TOutputPixel, TCoordRep, NPointDimension>
@@ -102,6 +110,7 @@ ElevDatabaseHeightAboveMSLFunction<TOutputPixel, TCoordRep, NPointDimension>
     }
 }
 
+
 template <class TOutputPixel, class TCoordRep, unsigned int NPointDimension>
 void
 ElevDatabaseHeightAboveMSLFunction<TOutputPixel, TCoordRep, NPointDimension>