1 // scenery.hxx -- data structures and routines for managing scenery.
3 // Written by Curtis Olson, started May 1997.
5 // Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
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., 675 Mass Ave, Cambridge, MA 02139, USA.
29 # error This library requires C++
34 #include <simgear/math/point3d.hxx>
37 // Define a structure containing global scenery parameters
39 // center of current scenery chunk
42 // next center of current scenery chunk
45 // angle of sun relative to current local horizontal
48 // elevation of terrain at our current lat/lon (based on the
49 // actual drawn polygons)
52 // the distance (radius) from the center of the earth to the
53 // current scenery elevation point
56 // unit normal at point used to determine current elevation
60 extern struct fgSCENERY scenery;
63 // Initialize the Scenery Management system
64 int fgSceneryInit( void );
67 #endif // _SCENERY_HXX