Allow removing of the texture data after it is sent to OpenGL

[simgear.git] / simgear / math / polar3d.cxx

diff --git a/simgear/math/polar3d.cxx b/simgear/math/polar3d.cxx
index d071f1a7c0a98b87b1ab1f277ba7493f09687a37..6b1e2e79d923fe68253766aedef7c3e85ab5d024 100644 (file)
--- a/simgear/math/polar3d.cxx
+++ b/simgear/math/polar3d.cxx
@@ -39,17 +39,17 @@ double fgGeodAltFromCart(const Point3D& cp)
     double lat_geoc, radius;
     double result;
 
-    lat_geoc = FG_PI_2 - atan2( sqrt(cp.x()*cp.x() + cp.y()*cp.y()), cp.z() );
+    lat_geoc = SGD_PI_2 - atan2( sqrt(cp.x()*cp.x() + cp.y()*cp.y()), cp.z() );
     radius = sqrt( cp.x()*cp.x() + cp.y()*cp.y() + cp.z()*cp.z() );
        
-    if( ( (FG_PI_2 - lat_geoc) < ONE_SECOND )        // near North pole
-       || ( (FG_PI_2 + lat_geoc) < ONE_SECOND ) )   // near South pole
+    if( ( (SGD_PI_2 - lat_geoc) < SG_ONE_SECOND )        // near North pole
+       || ( (SGD_PI_2 + lat_geoc) < SG_ONE_SECOND ) )   // near South pole
     {
-       result = radius - EQUATORIAL_RADIUS_M*E;
+       result = radius - SG_EQUATORIAL_RADIUS_M*E;
     } else {
        t_lat = tan(lat_geoc);
-       x_alpha = E*EQUATORIAL_RADIUS_M/sqrt(t_lat*t_lat + E*E);
-       mu_alpha = atan2(sqrt(RESQ_M - x_alpha*x_alpha),E*x_alpha);
+       x_alpha = E*SG_EQUATORIAL_RADIUS_M/sqrt(t_lat*t_lat + E*E);
+       mu_alpha = atan2(sqrt(SG_EQ_RAD_SQUARE_M - x_alpha*x_alpha),E*x_alpha);
        if (lat_geoc < 0) {
            mu_alpha = - mu_alpha;
        }