//
// 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.
//
// $Id$
+#ifdef HAVE_CONFIG_H
+# 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 modetype m, const string s ) {
- target_lon = lon;
- target_lat = lat;
- mode = m;
- id = s;
+SGWayPoint::SGWayPoint( const double lon, const double lat, const double alt,
+ 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() {
- SGWayPoint( 0.0, 0.0, WGS84, "" );
+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 and distance in
-// meters. For CARTESIAN coordinates x = lon, y = lat. Course is in
-// degrees and distance is in what ever units x and y are in.
-void SGWayPoint::CourseAndDistance( const double cur_lon, const double cur_lat,
- double *course, double *distance ) {
- if ( mode == WGS84 ) {
- double reverse;
- geo_inverse_wgs_84( 0.0, cur_lat, cur_lon, target_lat, target_lon,
- course, &reverse, distance );
- } else if ( mode == SPHERICAL ) {
- Point3D current( cur_lon * DEG_TO_RAD, cur_lat * DEG_TO_RAD, 0.0 );
- Point3D target( target_lon * DEG_TO_RAD, target_lat * DEG_TO_RAD, 0.0 );
- calc_gc_course_dist( current, target, course, distance );
- *course = 360.0 - *course * RAD_TO_DEG;
- } else if ( mode == CARTESIAN ) {
- double dx = target_lon - cur_lon;
- double dy = target_lat - cur_lat;
- *course = -atan2( dy, dx ) * RAD_TO_DEG - 90;
- while ( *course < 0 ) {
- *course += 360.0;
- }
- while ( *course > 360.0 ) {
- *course -= 360.0;
- }
- *distance = sqrt( dx * dx + dy * dy );
- }
+// coordinates lat, lon, and course are in degrees, alt and distance
+// are in meters. For CARTESIAN coordinates x = lon, y = lat. Course
+// is in degrees and distance is in what ever units x and y are in.
+void SGWayPoint::CourseAndDistance( const double cur_lon,
+ const double cur_lat,
+ const double cur_alt,
+ double *course, double *dist ) const {
+ 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(), *course, *dist );
}