cppbind: automatic conversion of SGReferenced derived pointers.

[simgear.git] / simgear / math / SGGeod.hxx

diff --git a/simgear/math/SGGeod.hxx b/simgear/math/SGGeod.hxx
index 9a9ab14651d43fd19e3b3b4f237ad0f7fd656d73..8eddbe92ba5f10c2fb9f20765c96ad9085dd8cf6 100644 (file)
--- a/simgear/math/SGGeod.hxx
+++ b/simgear/math/SGGeod.hxx
@@ -82,9 +82,12 @@ public:
   /// Set the geodetic elevation from the argument given in feet
   void setElevationFt(double elevation);
 
-  // Compare two geodetic positions for equality
+  /// Compare two geodetic positions for equality
   bool operator == ( const SGGeod & other ) const;
 
+  /// check the Geod contains sane values (finite, inside appropriate
+  /// ranges for lat/lon)
+  bool isValid() const;
 private:
   /// This one is private since construction is not unique if you do
   /// not know the units of the arguments. Use the factory methods for
@@ -345,6 +348,23 @@ SGGeod::operator == ( const SGGeod & other ) const
          _elevation == other._elevation;
 }
 
+inline
+bool
+SGGeod::isValid() const
+{
+  if (SGMiscd::isNaN(_lon))
+      return false;
+  if (SGMiscd::isNaN(_lat))
+      return false;
+#ifdef SG_GEOD_NATIVE_DEGREE
+  return (_lon >= -180.0) && (_lon <= 180.0) &&
+  (_lat >= -90.0) && (_lat <= 90.0);
+#else
+  return (_lon >= -SGD_PI) && (_lon <= SGD_PI) &&
+  (_lat >= -SGD_PI_2) && (_lat <= SGD_PI_2);
+#endif
+}
+
 /// Output to an ostream
 template<typename char_type, typename traits_type>
 inline