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[flightgear.git] / src / ATC / ATCutils.hxx

diff --git a/src/ATC/ATCutils.hxx b/src/ATC/ATCutils.hxx
index 2047650862a32eddb070c15f2cbacf4b597675c0..85cb65841bc30d53742f225ae2d049c9e619d314 100644 (file)
--- a/src/ATC/ATCutils.hxx
+++ b/src/ATC/ATCutils.hxx
@@ -72,7 +72,7 @@ string GetCompassDirection(double h);
 ********************************/
 
 // Given two positions (lat & lon in degrees), get the HORIZONTAL separation (in meters)
-double dclGetHorizontalSeparation(const Point3D pos1, const Point3D pos2);
+double dclGetHorizontalSeparation(const Point3D& pos1, const Point3D& pos2);
 
 // Given a point and a line, get the HORIZONTAL shortest distance from the point to a point on the line.
 // Expects to be fed orthogonal co-ordinates, NOT lat & lon !
@@ -80,10 +80,10 @@ double dclGetLinePointSeparation(double px, double py, double x1, double y1, dou
 
 // Given a position (lat/lon/elev), heading, vertical angle, and distance, calculate the new position.
 // Assumes that the ground is not hit!!!  Expects heading and angle in degrees, distance in meters.
-Point3D dclUpdatePosition(const Point3D pos, double heading, double angle, double distance);
+Point3D dclUpdatePosition(const Point3D& pos, double heading, double angle, double distance);
 
 // Get a heading from one lat/lon to another (in degrees)
-double GetHeadingFromTo(const Point3D A, const Point3D B);
+double GetHeadingFromTo(const Point3D& A, const Point3D& B);
 
 // Given a heading (in degrees), bound it from 0 -> 360
 void dclBoundHeading(double &hdg);
@@ -92,25 +92,6 @@ void dclBoundHeading(double &hdg);
 // difference is negative if a1 > a2 and positive if a2 > a1
 double GetAngleDiff_deg( const double &a1, const double &a2);
 
-
-/*******************************
-*
-*      Airport-related functions
-*
-********************************/
-
-// The next two functions are straight copies of their fg.... equivalents
-// in fg_init.cxx, and are just here temporarily until some rationalisation occurs.
-
-// find basic airport location info from airport database
-bool dclFindAirportID( const string& id, FGAirport *a );
-
-// get airport elevation IN METERS
-double dclGetAirportElev( const string& id );
-
-// get airport position (elev portion in FEET)
-Point3D dclGetAirportPos( const string& id );
-
 /****************
 *
 *   Runways
@@ -118,5 +99,5 @@ Point3D dclGetAirportPos( const string& id );
 ****************/
 
 // Given a Point3D (lon/lat/elev) and an FGRunway struct, determine if the point lies on the runway
-bool OnRunway(const Point3D pt, const FGRunway& rwy);
+bool OnRunway(const Point3D& pt, const FGRunway& rwy);