1 /* -*- Mode: C++ -*- *****************************************************
3 * Written by Durk Talsma. Started July 1999.
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 * Boston, MA 02111-1307, USA.
20 **************************************************************************/
22 /*************************************************************************
24 * This file defines a small and simple class to store geocentric
25 * coordinates. Basically, class GeoCoord is intended as a base class for
26 * any kind of of object, that can be categorized according to its
27 * location on earth, be it navaids, or aircraft. This class for originally
28 * written for FlightGear, in order to store Timezone control points.
30 ************************************************************************/
36 #include <simgear/compiler.h>
42 //#include <streambuf> // looks like streambuf does not exist on linux.
43 // But it looks like it isn't used anyways -:)
46 SG_USING_NAMESPACE(std);
48 #include <simgear/constants.h>
57 SGGeoCoord() { lat = 0.0; lon = 0.0;};
58 SGGeoCoord(float la, float lo) { lat = la; lon = lo;};
59 SGGeoCoord(const SGGeoCoord& other);
60 virtual ~SGGeoCoord() {};
62 void set(float la, float lo) { lat = la; lon = lo; };
63 float getLat() const { return lat; };
64 float getLon() const { return lon; };
65 float getX() const { return cos(SGD_DEGREES_TO_RADIANS*lat) * cos(SGD_DEGREES_TO_RADIANS*lon); };
66 float getY() const { return cos(SGD_DEGREES_TO_RADIANS*lat) * sin(SGD_DEGREES_TO_RADIANS*lon); };
67 float getZ() const { return sin(SGD_DEGREES_TO_RADIANS*lat); };
70 //double getAngle(const SGGeoCoord& other) const;
71 virtual void print() {} ;
72 virtual const char * getDescription() {return 0;};
75 typedef vector<SGGeoCoord*> SGGeoCoordVector;
76 typedef vector<SGGeoCoord*>::iterator SGGeoCoordVectorIterator;
77 typedef vector<SGGeoCoord*>::const_iterator SGGeoCoordVectorConstIterator;
79 /************************************************************************
80 * SGGeoCoordContainer is a simple container class, that stores objects
81 * derived from SGGeoCoord. Basically, it is a wrapper around an STL vector,
82 * with some added functionality
83 ***********************************************************************/
85 class SGGeoCoordContainer
88 SGGeoCoordVector data;
91 SGGeoCoordContainer() {};
92 virtual ~SGGeoCoordContainer();
94 const SGGeoCoordVector& getData() const { return data; };
95 SGGeoCoord* getNearest(const SGGeoCoord& ref) const;
99 #endif // _GEO_COORD_H_