ENH: finishing up otbGeocentricTransform

Code/Projections/otbGeocentricTransform.txx

@@ -47,6 +47,25 @@ namespace otb
   {
     OutputPointType outputPoint;
 
+    switch (DirectionOfMapping)
+    {
+      case INVERSE:
+      {
+        m_Ellipsoid->XYZToLatLonHeight(point[0], point[1], point[2], outputPoint[1],outputPoint[0],outputPoint[2]);
+        break;
+      }
+      case FORWARD:
+      {
+        m_Ellipsoid->latLonHeightToXYZ(point[1], point[0], point[2], outputPoint[0],outputPoint[1],outputPoint[2]);
+
+        break;
+      }
+      default:
+      {
+        itkExceptionMacro(<<"Model is INVERSE or FORWARD only !!");
+        break;
+      }
+    }
     //To be completed
     return outputPoint;
   }