};
// Scenery Management system
-FGScenery::FGScenery() :
- center(0, 0, 0)
+FGScenery::FGScenery()
{
SG_LOG( SG_TERRAIN, SG_INFO, "Initializing scenery subsystem" );
}
aircraft_branch->setName( "Aircraft" );
scene_graph->addChild( aircraft_branch.get() );
- // Lighting
- gnd_lights_root = new osg::Group;
- gnd_lights_root->setName( "Ground Lighting Root" );
-
- vasi_lights_root = new osg::Group;
- vasi_lights_root->setName( "VASI/PAPI Lighting Root" );
-
- rwy_lights_root = new osg::Group;
- rwy_lights_root->setName( "Runway Lighting Root" );
-
- taxi_lights_root = new osg::Group;
- taxi_lights_root->setName( "Taxi Lighting Root" );
-
// Initials values needed by the draw-time object loader
sgUserDataInit( globals->get_model_lib(), globals->get_fg_root(),
globals->get_props(), globals->get_sim_time_sec() );
void FGScenery::unbind() {
}
-void FGScenery::set_center( const SGVec3d& p ) {
- if (center == p)
- return;
- center = p;
- placement_list_type::iterator it = _placement_list.begin();
- while (it != _placement_list.end()) {
- (*it)->setSceneryCenter(center);
- ++it;
- }
-}
-
-void FGScenery::register_placement_transform(SGPlacementTransform *trans) {
- _placement_list.push_back(trans);
- trans->setSceneryCenter(center);
-}
-
-void FGScenery::unregister_placement_transform(SGPlacementTransform *trans) {
- placement_list_type::iterator it = _placement_list.begin();
- while (it != _placement_list.end()) {
- if ((*it) == trans) {
- it = _placement_list.erase(it);
- } else
- ++it;
- }
-}
-
bool
FGScenery::get_elevation_m(double lat, double lon, double max_alt,
- double& alt, const SGMaterial** material,
- bool exact)
+ double& alt, const SGMaterial** material)
{
SGGeod geod = SGGeod::fromDegM(lon, lat, max_alt);
SGVec3d pos = SGVec3d::fromGeod(geod);
- return get_cart_elevation_m(pos, 0, alt, material, exact);
+ return get_cart_elevation_m(pos, 0, alt, material);
}
bool
FGScenery::get_cart_elevation_m(const SGVec3d& pos, double max_altoff,
- double& alt, const SGMaterial** material,
- bool exact)
+ double& alt, const SGMaterial** material)
{
if ( norm1(pos) < 1 )
return false;
- SGVec3d saved_center = center;
- bool replaced_center = false;
- if (exact) {
- if (30*30 < distSqr(pos, center)) {
- set_center( pos );
- replaced_center = true;
- }
- }
-
-
- SGVec3d start = pos + max_altoff*normalize(pos) - center;
- SGVec3d end = - center;
+ SGVec3d start = pos + max_altoff*normalize(pos);
+ SGVec3d end(0, 0, 0);
osgUtil::IntersectVisitor intersectVisitor;
intersectVisitor.setTraversalMask(SG_NODEMASK_TERRAIN_BIT);
= intersectVisitor.getHitList(lineSegment.get())[i];
SGVec3d point;
point.osg() = hit.getWorldIntersectPoint();
- point += center;
SGGeod geod = SGGeod::fromCart(point);
double elevation = geod.getElevationM();
if (alt < elevation) {
alt = elevation;
- if (material)
- *material = globals->get_matlib()->findMaterial(hit.getGeode());
+ if (material) {
+ const osg::StateSet* stateSet = hit.getDrawable()->getStateSet();
+ *material = globals->get_matlib()->findMaterial(stateSet);
+ }
}
}
}
- if (replaced_center)
- set_center( saved_center );
-
return hits;
}
bool
FGScenery::get_cart_ground_intersection(const SGVec3d& pos, const SGVec3d& dir,
- SGVec3d& nearestHit, bool exact)
+ SGVec3d& nearestHit)
{
// We assume that starting positions in the center of the earth are invalid
if ( norm1(pos) < 1 )
return false;
- // Well that 'exactness' is somehow problematic, but makes at least sure
- // that we don't compute that with a cenery center at the other side of
- // the world ...
- SGVec3d saved_center = center;
- bool replaced_center = false;
- if (exact) {
- if (30*30 < distSqr(pos, center)) {
- set_center( pos );
- replaced_center = true;
- }
- }
-
// Make really sure the direction is normalized, is really cheap compared to
// computation of ground intersection.
- SGVec3d start = pos - center;
+ SGVec3d start = pos;
SGVec3d end = start + 1e5*normalize(dir); // FIXME visibility ???
osgUtil::IntersectVisitor intersectVisitor;
double newdist = length(start - point);
if (newdist < dist) {
dist = newdist;
- nearestHit = point + center;
+ nearestHit = point;
}
}
}
- if (replaced_center)
- set_center( saved_center );
-
return hits;
}