//
// Written by Curtis Olson, started May 1997.
//
-// Copyright (C) 1997 Curtis L. Olson - curt@infoplane.com
+// Copyright (C) 1997 Curtis L. Olson - http://www.flightgear.org/~curt
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
//
// 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.
//
// $Id$
# error This library requires C++
#endif
-#include <plib/sg.h>
+#include <osg/ref_ptr>
+#include <osg/Switch>
+#include <simgear/compiler.h>
+#include <simgear/math/SGMath.hxx>
+#include <simgear/scene/model/particles.hxx>
#include <simgear/structure/subsystem_mgr.hxx>
-#include <simgear/math/point3d.hxx>
+#include "SceneryPager.hxx"
-class ssgRoot;
-class ssgBranch;
+namespace simgear {
+class BVHMaterial;
+}
// Define a structure containing global scenery parameters
-class FGScenery : public SGSubsystem {
- // center of current scenery chunk
- Point3D center;
-
- // next center of current scenery chunk
- Point3D next_center;
-
- // angle of sun relative to current local horizontal
- double sun_angle;
-
- // elevation of terrain at our current lat/lon (based on the
- // actual drawn polygons)
- double cur_elev;
-
- // the distance (radius) from the center of the earth to the
- // current scenery elevation point
- double cur_radius;
-
- // unit normal at point used to determine current elevation
- sgdVec3 cur_normal;
-
- // SSG scene graph
- ssgRoot *scene_graph;
- ssgBranch *terrain_branch;
- ssgRoot *gnd_lights_root;
- ssgRoot *vasi_lights_root;
- ssgRoot *rwy_lights_root;
- ssgRoot *taxi_lights_root;
- ssgBranch *models_branch;
- ssgBranch *aircraft_branch;
-
+class FGScenery : public SGSubsystem
+{
+ class ScenerySwitchListener;
+ friend class ScenerySwitchListener;
+
+
+ // scene graph
+ osg::ref_ptr<osg::Switch> scene_graph;
+ osg::ref_ptr<osg::Group> terrain_branch;
+ osg::ref_ptr<osg::Group> models_branch;
+ osg::ref_ptr<osg::Group> aircraft_branch;
+ osg::ref_ptr<osg::Group> interior_branch;
+ osg::ref_ptr<osg::Group> particles_branch;
+
+ osg::ref_ptr<flightgear::SceneryPager> _pager;
+ ScenerySwitchListener* _listener;
public:
FGScenery();
// Implementation of SGSubsystem.
void init ();
+ void shutdown ();
void bind ();
void unbind ();
void update (double dt);
- inline double get_cur_elev() const { return cur_elev; }
- inline void set_cur_elev( double e ) { cur_elev = e; }
-
- inline Point3D get_center() const { return center; }
- inline void set_center( Point3D p ) { center = p; }
-
- inline Point3D get_next_center() const { return next_center; }
- inline void set_next_center( Point3D p ) { next_center = p; }
-
- inline void set_cur_radius( double r ) { cur_radius = r; }
- inline void set_cur_normal( sgdVec3 n ) { sgdCopyVec3( cur_normal, n ); }
-
- inline ssgRoot *get_scene_graph () const { return scene_graph; }
- inline void set_scene_graph (ssgRoot * s) { scene_graph = s; }
-
- inline ssgBranch *get_terrain_branch () const { return terrain_branch; }
- inline void set_terrain_branch (ssgBranch * t) { terrain_branch = t; }
-
- inline ssgRoot *get_gnd_lights_root () const {
- return gnd_lights_root;
- }
- inline void set_gnd_lights_root (ssgRoot *r) {
- gnd_lights_root = r;
- }
-
- inline ssgRoot *get_vasi_lights_root () const {
- return vasi_lights_root;
- }
- inline void set_vasi_lights_root (ssgRoot *r) {
- vasi_lights_root = r;
- }
-
- inline ssgRoot *get_rwy_lights_root () const {
- return rwy_lights_root;
- }
- inline void set_rwy_lights_root (ssgRoot *r) {
- rwy_lights_root = r;
- }
-
- inline ssgRoot *get_taxi_lights_root () const {
- return taxi_lights_root;
- }
- inline void set_taxi_lights_root (ssgRoot *r) {
- taxi_lights_root = r;
- }
-
- inline ssgBranch *get_models_branch () const {
- return models_branch;
- }
- inline void set_models_branch (ssgBranch *t) {
- models_branch = t;
- }
-
- inline ssgBranch *get_aircraft_branch () const {
- return aircraft_branch;
- }
- inline void set_aircraft_branch (ssgBranch *t) {
- aircraft_branch = t;
- }
+ /// Compute the elevation of the scenery at geodetic latitude lat,
+ /// geodetic longitude lon and not higher than max_alt.
+ /// If the exact flag is set to true, the scenery center is moved to
+ /// gain a higher accuracy of that query. The center is restored past
+ /// that to the original value.
+ /// The altitude hit is returned in the alt argument.
+ /// The method returns true if the scenery is available for the given
+ /// lat/lon pair. If there is no scenery for that point, the altitude
+ /// value is undefined.
+ /// All values are meant to be in meters or degrees.
+ bool get_elevation_m(const SGGeod& geod, double& alt,
+ const simgear::BVHMaterial** material,
+ const osg::Node* butNotFrom = 0);
+
+ /// Compute the elevation of the scenery below the cartesian point pos.
+ /// you the returned scenery altitude is not higher than the position
+ /// pos plus an offset given with max_altoff.
+ /// If the exact flag is set to true, the scenery center is moved to
+ /// gain a higher accuracy of that query. The center is restored past
+ /// that to the original value.
+ /// The altitude hit is returned in the alt argument.
+ /// The method returns true if the scenery is available for the given
+ /// lat/lon pair. If there is no scenery for that point, the altitude
+ /// value is undefined.
+ /// All values are meant to be in meters.
+ bool get_cart_elevation_m(const SGVec3d& pos, double max_altoff,
+ double& elevation,
+ const simgear::BVHMaterial** material,
+ const osg::Node* butNotFrom = 0);
+
+ /// Compute the nearest intersection point of the line starting from
+ /// start going in direction dir with the terrain.
+ /// The input and output values should be in cartesian coordinates in the
+ /// usual earth centered wgs84 coordinate system. Units are meters.
+ /// On success, true is returned.
+ bool get_cart_ground_intersection(const SGVec3d& start, const SGVec3d& dir,
+ SGVec3d& nearestHit,
+ const osg::Node* butNotFrom = 0);
+
+ osg::Group *get_scene_graph () const { return scene_graph.get(); }
+ osg::Group *get_terrain_branch () const { return terrain_branch.get(); }
+ osg::Group *get_models_branch () const { return models_branch.get(); }
+ osg::Group *get_aircraft_branch () const { return aircraft_branch.get(); }
+ osg::Group *get_interior_branch () const { return interior_branch.get(); }
+ osg::Group *get_particles_branch () const { return particles_branch.get(); }
+
+ /// Returns true if scenery is available for the given lat, lon position
+ /// within a range of range_m.
+ /// lat and lon are expected to be in degrees.
+ bool scenery_available(const SGGeod& position, double range_m);
+
+ // Static because access to the pager is needed before the rest of
+ // the scenery is initialized.
+ static flightgear::SceneryPager* getPagerSingleton();
+ static void resetPagerSingleton();
+
+ flightgear::SceneryPager* getPager() { return _pager.get(); }
+
+ static const char* subsystemName() { return "scenery"; }
};
projects / flightgear.git / blobdiff