1 // waypoint.cxx -- Class to hold data and return info relating to a waypoint
3 // Written by Curtis Olson, started September 2000.
5 // Copyright (C) 2000 Curtis L. Olson - curt@hfrl.umn.edu
7 // This program is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU General Public License as
9 // published by the Free Software Foundation; either version 2 of the
10 // License, or (at your option) any later version.
12 // This program is distributed in the hope that it will be useful, but
13 // WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 // General Public License for more details.
17 // You should have received a copy of the GNU General Public License
18 // along with this program; if not, write to the Free Software
19 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
24 # include <simgear_config.h>
27 #include <simgear/math/sg_geodesy.hxx>
29 #include "waypoint.hxx"
34 SGWayPoint::SGWayPoint( const double lon, const double lat, const double alt,
35 const modetype, const string& s, const string& n ) :
36 pos(SGGeod::fromDegM(lon, lat, alt)),
45 SGWayPoint::SGWayPoint(const SGGeod& geod, const string& s, const string& n ) :
56 SGWayPoint::~SGWayPoint() {
59 void SGWayPoint::CourseAndDistance(const SGGeod& cur, double& course, double& dist ) const {
61 SGGeodesy::inverse(cur, pos, course, reverse, dist);
64 // Calculate course and distances. For WGS84 and SPHERICAL
65 // coordinates lat, lon, and course are in degrees, alt and distance
66 // are in meters. For CARTESIAN coordinates x = lon, y = lat. Course
67 // is in degrees and distance is in what ever units x and y are in.
68 void SGWayPoint::CourseAndDistance( const double cur_lon,
71 double *course, double *dist ) const {
72 CourseAndDistance(SGGeod::fromDegM(cur_lon, cur_lat, cur_alt), *course, *dist);
75 // Calculate course and distances between two waypoints
76 void SGWayPoint::CourseAndDistance( const SGWayPoint &wp,
77 double *course, double *dist ) const {
78 CourseAndDistance( wp.get_target(), *course, *dist );