X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=simgear%2Froute%2Fwaypoint.cxx;h=73669037e0f82d7d2fdb730ef1c5d54663e052c5;hb=7bdb530440d1dadc991f305edb1b70ec85f27451;hp=47487f0b72e7e601142a6aaad2f956edc2b8ffe5;hpb=1b51de08f5a5e415ae47fdaa48832c852d810d91;p=simgear.git

diff --git a/simgear/route/waypoint.cxx b/simgear/route/waypoint.cxx
index 47487f0b..73669037 100644
--- a/simgear/route/waypoint.cxx
+++ b/simgear/route/waypoint.cxx
@@ -16,7 +16,7 @@
 //
 // You should have received a copy of the GNU General Public License
 // along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 //
 // $Id$
 
@@ -24,28 +24,42 @@
 #  include <simgear_config.h>
 #endif
 
-#include <simgear/math/polar3d.hxx>
 #include <simgear/math/sg_geodesy.hxx>
 
 #include "waypoint.hxx"
 
+using std::string;
 
 // Constructor
 SGWayPoint::SGWayPoint( const double lon, const double lat, const double alt,
-			const modetype m, const string s, const string n ) {
-    target_lon = lon;
-    target_lat = lat;
-    target_alt = alt;
-    mode = m;
-    id = s;
-    name = n;
+			const modetype, const string& s, const string& n ) :
+  pos(SGGeod::fromDegM(lon, lat, alt)),
+  id(s),
+  name(n),
+  _distance(0.0),
+  _track(0.0),
+  _speed(0.0)
+{
 }
 
+SGWayPoint::SGWayPoint(const SGGeod& geod, const string& s, const string& n ) :
+  pos(geod),
+  id(s),
+  name(n),
+  _distance(0.0),
+  _track(0.0),
+  _speed(0.0)
+{
+}
 
 // Destructor
 SGWayPoint::~SGWayPoint() {
 }
 
+void SGWayPoint::CourseAndDistance(const SGGeod& cur, double& course, double& dist ) const {
+  double reverse;
+  SGGeodesy::inverse(cur, pos, course, reverse, dist);
+}
 
 // Calculate course and distances.  For WGS84 and SPHERICAL
 // coordinates lat, lon, and course are in degrees, alt and distance
@@ -55,34 +69,11 @@ void SGWayPoint::CourseAndDistance( const double cur_lon,
 				    const double cur_lat,
 				    const double cur_alt,
 				    double *course, double *dist ) const {
-    if ( mode == WGS84 ) {
-	double reverse;
-	geo_inverse_wgs_84( cur_alt, cur_lat, cur_lon, target_lat, target_lon,
-			    course, &reverse, dist );
-    } else if ( mode == SPHERICAL ) {
-	Point3D current( cur_lon * SGD_DEGREES_TO_RADIANS, cur_lat * SGD_DEGREES_TO_RADIANS, 0.0 );
-	Point3D target( target_lon * SGD_DEGREES_TO_RADIANS, target_lat * SGD_DEGREES_TO_RADIANS, 0.0 );
-	calc_gc_course_dist( current, target, course, dist );
-	*course = 360.0 - *course * SGD_RADIANS_TO_DEGREES;
-    } else if ( mode == CARTESIAN ) {
-	double dx = target_lon - cur_lon;
-	double dy = target_lat - cur_lat;
-	*course = -atan2( dy, dx ) * SGD_RADIANS_TO_DEGREES - 90;
-	while ( *course < 0 ) {
-	    *course += 360.0;
-	}
-	while ( *course > 360.0 ) {
-	    *course -= 360.0;
-	}
-	*dist = sqrt( dx * dx + dy * dy );
-    }
+  CourseAndDistance(SGGeod::fromDegM(cur_lon, cur_lat, cur_alt), *course, *dist);
 }
 
 // Calculate course and distances between two waypoints
 void SGWayPoint::CourseAndDistance( const SGWayPoint &wp,
 			double *course, double *dist ) const {
-    CourseAndDistance( wp.get_target_lon(),
-		       wp.get_target_lat(),
-		       wp.get_target_alt(),
-		       course, dist );
+    CourseAndDistance( wp.get_target(), *course, *dist );
 }