#include <simgear/math/SGMath.hxx>
#include <simgear/structure/subsystem_mgr.hxx>
+#include "SceneryPager.hxx"
+
class SGMaterial;
// Define a structure containing global scenery parameters
/// 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(double lat, double lon, double max_alt,
- double& alt, const SGMaterial** material);
bool get_elevation_m(const SGGeod& geod, double& alt,
- const SGMaterial** material);
+ const SGMaterial** material,
+ const osg::Node* butNotFrom = 0);
/// Compute the elevation of the scenery beow the cartesian point pos.
/// you the returned scenery altitude is not higher than the position
/// value is undefined.
/// All values are meant to be in meters.
bool get_cart_elevation_m(const SGVec3d& pos, double max_altoff,
- double& radius, const SGMaterial** material);
+ double& elevation, const SGMaterial** material,
+ const osg::Node* butNotFrom = 0);
/// Compute the nearest intersection point of the line starting from
/// start going in direction dir with the terrain.
/// usual earth centered wgs84 coordiante system. Units are meters.
/// On success, true is returned.
bool get_cart_ground_intersection(const SGVec3d& start, const SGVec3d& dir,
- SGVec3d& nearestHit);
+ 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(); }
+
+ /// Returns true if scenery is avaliable 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();
};