X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FScenery%2Fscenery.hxx;h=bd976ba231ce82121a8ce1895528aa7fe8821bf6;hb=674a295896a1e56d605f39874262d6f146a586a3;hp=75512b3aafcc39a615877c633e028cd450e8b61d;hpb=17262df51cc5a9a542a35d6126b55f08cb210f7e;p=flightgear.git

diff --git a/src/Scenery/scenery.hxx b/src/Scenery/scenery.hxx
index 75512b3aa..bd976ba23 100644
--- a/src/Scenery/scenery.hxx
+++ b/src/Scenery/scenery.hxx
@@ -36,6 +36,8 @@
 #include <simgear/math/SGMath.hxx>
 #include <simgear/structure/subsystem_mgr.hxx>
 
+#include "SceneryPager.hxx"
+
 class SGMaterial;
 
 // Define a structure containing global scenery parameters
@@ -68,10 +70,9 @@ public:
     /// 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
@@ -85,7 +86,8 @@ public:
     /// 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.
@@ -93,12 +95,22 @@ public:
     /// 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();
 };