X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=simgear%2Fmath%2FSGGeodesy.hxx;h=cce38199b6b252de56afde984f67c3cbaf6c988d;hb=584ee1364f25e5c3795f9ff4633a792cba39bfc7;hp=0c75a825bbacfac737032b8a09f0c3701629428a;hpb=607987def582820eb738b61d336d2a301df1c38d;p=simgear.git

diff --git a/simgear/math/SGGeodesy.hxx b/simgear/math/SGGeodesy.hxx
index 0c75a825..cce38199 100644
--- a/simgear/math/SGGeodesy.hxx
+++ b/simgear/math/SGGeodesy.hxx
@@ -45,6 +45,39 @@ public:
   /// Takes a geocentric coordinate data and returns the cartesian
   /// coordinates.
   static void SGGeocToCart(const SGGeoc& geoc, SGVec3<double>& cart);
+
+  // Geodetic course/distance computation
+  static bool direct(const SGGeod& p1, double course1,
+                     double distance, SGGeod& p2, double& course2);
+
+  /// overloaded version of above, returns new value directly, throws
+  /// an sg_exception on failure.
+  static SGGeod direct(const SGGeod& p1, double course1,
+                     double distance);
+
+  static bool inverse(const SGGeod& p1, const SGGeod& p2, double& course1,
+                      double& course2, double& distance);
+
+  static double courseDeg(const SGGeod& from, const SGGeod& to);
+  static double distanceM(const SGGeod& from, const SGGeod& to);
+  static double distanceNm(const SGGeod& from, const SGGeod& to);
+    
+  // Geocentric course/distance computation
+  static void advanceRadM(const SGGeoc& geoc, double course, double distance,
+                          SGGeoc& result);
+  static double courseRad(const SGGeoc& from, const SGGeoc& to);
+  static double distanceRad(const SGGeoc& from, const SGGeoc& to);
+  static double distanceM(const SGGeoc& from, const SGGeoc& to);
+  
+  /**
+   * compute the intersection of two (true) radials (in degrees), or return false
+   * if no intersection culd be computed.
+   */
+  static bool radialIntersection(const SGGeoc& a, double aRadial, 
+    const SGGeoc& b, double bRadial, SGGeoc& result);
+    
+  static bool radialIntersection(const SGGeod& a, double aRadial, 
+    const SGGeod& b, double bRadial, SGGeod& result);
 };
 
 #endif