Add lat long conversion

helper/ground-node-helper.h

@@ -8,6 +8,9 @@
 #include "ns3/object-factory.h"
 #include "ns3/node-container.h"
 #include "ns3/constant-position-mobility-model.h"
+#include "ns3/leo-lat-long.h"
+
+#define LEO_GND_RAD_EARTH 6.371e6
 
 /**
  * \brief Builds a node container of nodes with constant positions
@@ -31,6 +34,15 @@ public:
    */
   NodeContainer Install (const std::string &wpFile);
 
+  /**
+   *
+   * \param location1 first location
+   * \param location2 second location
+   * \returns a node container containing nodes using the specified attributes
+   */
+  NodeContainer Install (const LeoLatLong &location1,
+  			 const LeoLatLong &location2);
+
   /**
    * Set an attribute for each node
    *
@@ -41,6 +53,8 @@ public:
 
 private:
   ObjectFactory m_gndNodeFactory;
+
+  static Vector3D GetEarthPosition (const LeoLatLong &loc);
 };
 
 }; // namespace ns3