X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=simgear%2Froute%2Froute.hxx;h=6d2da1f765f03c357a2033cf46a89ba242387d47;hb=c16b9ed25b9c8d7229153787aa1492e4ea37b61e;hp=ead338d42de9cc4bb3b14c188772cddae0907de2;hpb=cd5765be1eb35f0608605de7a24f70a7bf5d0ba9;p=simgear.git

diff --git a/simgear/route/route.hxx b/simgear/route/route.hxx
index ead338d4..6d2da1f7 100644
--- a/simgear/route/route.hxx
+++ b/simgear/route/route.hxx
@@ -39,10 +39,10 @@
 #include STL_STRING
 #include <vector>
 
-FG_USING_STD(string);
-FG_USING_STD(vector);
+SG_USING_STD(string);
+SG_USING_STD(vector);
 
-#include "waypoint.hxx"
+#include <simgear/route/waypoint.hxx>
 
 
 class SGRoute {
@@ -127,6 +127,12 @@ public:
 	    route.erase( route.begin() );
 	}
     }
+
+    // Calculate perpendicular distance from the current route segment
+    // This routine assumes all points are laying on a flat plane and
+    // ignores the altitude (or Z) dimension.  For best results, use
+    // with CARTESIAN way points.
+    double distance_off_route( double x, double y ) const;
 };