From 007b0a8fe666eddc104c9b36aa0f62d7ac737ad3 Mon Sep 17 00:00:00 2001
From: ehofman <ehofman>
Date: Tue, 17 Aug 2004 08:31:51 +0000
Subject: [PATCH] this simple patch will enable the direct use of
 Point3D::get_n() instead of making duplications to call sgCartToGeod

---
 simgear/math/sg_geodesy.cxx | 2 +-
 simgear/math/sg_geodesy.hxx | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/simgear/math/sg_geodesy.cxx b/simgear/math/sg_geodesy.cxx
index 61fc8cff..f56e93fa 100644
--- a/simgear/math/sg_geodesy.cxx
+++ b/simgear/math/sg_geodesy.cxx
@@ -108,7 +108,7 @@ static double seaLevelRadius(double r, double z)
 // starts making very poor guesses as to latitude.  As altitude
 // approaches infinity, it should be guessing with geocentric
 // coordinates, not "local geodetic up" ones.
-void sgCartToGeod(double* xyz, double* lat, double* lon, double* alt)
+void sgCartToGeod(const double* xyz, double* lat, double* lon, double* alt)
 {
     // The error is expressed as a radian angle, and we want accuracy
     // to 1 part in 2^50 (an IEEE double has between 51 and 52
diff --git a/simgear/math/sg_geodesy.hxx b/simgear/math/sg_geodesy.hxx
index 8d8b2f9d..0024e541 100644
--- a/simgear/math/sg_geodesy.hxx
+++ b/simgear/math/sg_geodesy.hxx
@@ -42,7 +42,7 @@ void sgGeodToGeoc(double lat_geod, double alt,
  * @param lon (out) Longitude, in radians
  * @param alt (out) Altitude, in meters above the WGS84 ellipsoid
  */
-void sgCartToGeod(double* xyz, double* lat, double* lon, double* alt);
+void sgCartToGeod(const double* xyz, double* lat, double* lon, double* alt);
 
 /**
  * Convert a cartesian point to a geodetic lat/lon/altitude.
-- 
2.39.5