#include <osgUtil/IntersectVisitor>
+#include <simgear/constants.h>
#include <simgear/debug/logstream.hxx>
#include <simgear/scene/tgdb/userdata.hxx>
-#include <simgear/math/sg_geodesy.hxx>
-#include <simgear/scene/model/placementtrans.hxx>
#include <simgear/scene/material/matlib.hxx>
#include <simgear/scene/util/SGNodeMasks.hxx>
#include <simgear/scene/util/SGSceneUserData.hxx>
+#include <simgear/scene/model/CheckSceneryVisitor.hxx>
#include <Main/fg_props.hxx>
+#include "tilemgr.hxx"
#include "scenery.hxx"
+using namespace flightgear;
+using namespace simgear;
+
class FGGroundPickCallback : public SGPickCallback {
public:
virtual bool buttonPressed(int button, const Info& info)
SG_LOG( SG_TERRAIN, SG_INFO, "Initializing scenery subsystem" );
}
-
-// Initialize the Scenery Management system
FGScenery::~FGScenery() {
}
+// Initialize the Scenery Management system
void FGScenery::init() {
// Scene graph root
scene_graph = new osg::Group;
scene_graph->addChild( aircraft_branch.get() );
// 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() );
+ sgUserDataInit( globals->get_props() );
}
}
bool
-FGScenery::get_elevation_m(double lat, double lon, double max_alt,
- double& alt, const SGMaterial** material)
+FGScenery::get_cart_elevation_m(const SGVec3d& pos, double max_altoff,
+ double& alt, const SGMaterial** material,
+ const osg::Node* butNotFrom)
{
- SGGeod geod = SGGeod::fromDegM(lon, lat, max_alt);
- SGVec3d pos = SGVec3d::fromGeod(geod);
- return get_cart_elevation_m(pos, 0, alt, material);
+ SGGeod geod = SGGeod::fromCart(pos);
+ geod.setElevationM(geod.getElevationM() + max_altoff);
+ return get_elevation_m(geod, alt, material, butNotFrom);
}
bool
-FGScenery::get_cart_elevation_m(const SGVec3d& pos, double max_altoff,
- double& alt, const SGMaterial** material)
+FGScenery::get_elevation_m(const SGGeod& geod, double& alt,
+ const SGMaterial** material,
+ const osg::Node* butNotFrom)
{
- if ( norm1(pos) < 1 )
- return false;
+ SGVec3d start = SGVec3d::fromGeod(geod);
- SGVec3d start = pos + max_altoff*normalize(pos);
- SGVec3d end(0, 0, 0);
+ SGGeod geodEnd = geod;
+ geodEnd.setElevationM(SGMiscd::min(geod.getElevationM() - 10, -10000));
+ SGVec3d end = SGVec3d::fromGeod(geodEnd);
osgUtil::IntersectVisitor intersectVisitor;
intersectVisitor.setTraversalMask(SG_NODEMASK_TERRAIN_BIT);
osg::ref_ptr<osg::LineSegment> lineSegment;
- lineSegment = new osg::LineSegment(start.osg(), end.osg());
+ lineSegment = new osg::LineSegment(toOsg(start), toOsg(end));
intersectVisitor.addLineSegment(lineSegment.get());
get_scene_graph()->accept(intersectVisitor);
- bool hits = intersectVisitor.hits();
- if (hits) {
+ bool hits = false;
+ if (intersectVisitor.hits()) {
int nHits = intersectVisitor.getNumHits(lineSegment.get());
alt = -SGLimitsd::max();
for (int i = 0; i < nHits; ++i) {
const osgUtil::Hit& hit
= intersectVisitor.getHitList(lineSegment.get())[i];
- SGVec3d point;
- point.osg() = hit.getWorldIntersectPoint();
- SGGeod geod = SGGeod::fromCart(point);
+ if (butNotFrom &&
+ std::find(hit.getNodePath().begin(), hit.getNodePath().end(),
+ butNotFrom) != hit.getNodePath().end())
+ continue;
+
+ // We might need the double variant of the intersection point.
+ // Thus we cannot use the float variant delivered by
+ // hit.getWorldIntersectPoint() but we have to redo that with osg::Vec3d.
+ osg::Vec3d point = hit.getLocalIntersectPoint();
+ if (hit.getMatrix())
+ point = point*(*hit.getMatrix());
+ SGGeod geod = SGGeod::fromCart(toSG(point));
double elevation = geod.getElevationM();
if (alt < elevation) {
alt = elevation;
- if (material) {
- const osg::StateSet* stateSet = hit.getDrawable()->getStateSet();
- *material = globals->get_matlib()->findMaterial(stateSet);
- }
+ hits = true;
+ if (material)
+ *material = SGMaterialLib::findMaterial(hit.getGeode());
}
}
}
bool
FGScenery::get_cart_ground_intersection(const SGVec3d& pos, const SGVec3d& dir,
- SGVec3d& nearestHit)
+ SGVec3d& nearestHit,
+ const osg::Node* butNotFrom)
{
// We assume that starting positions in the center of the earth are invalid
if ( norm1(pos) < 1 )
osgUtil::IntersectVisitor intersectVisitor;
intersectVisitor.setTraversalMask(SG_NODEMASK_TERRAIN_BIT);
osg::ref_ptr<osg::LineSegment> lineSegment;
- lineSegment = new osg::LineSegment(start.osg(), end.osg());
+ lineSegment = new osg::LineSegment(toOsg(start), toOsg(end));
intersectVisitor.addLineSegment(lineSegment.get());
get_scene_graph()->accept(intersectVisitor);
- bool hits = intersectVisitor.hits();
- if (hits) {
+ bool hits = false;
+ if (intersectVisitor.hits()) {
int nHits = intersectVisitor.getNumHits(lineSegment.get());
double dist = SGLimitsd::max();
for (int i = 0; i < nHits; ++i) {
const osgUtil::Hit& hit
= intersectVisitor.getHitList(lineSegment.get())[i];
- SGVec3d point;
- point.osg() = hit.getWorldIntersectPoint();
- double newdist = length(start - point);
+ if (butNotFrom &&
+ std::find(hit.getNodePath().begin(), hit.getNodePath().end(),
+ butNotFrom) != hit.getNodePath().end())
+ continue;
+ // We might need the double variant of the intersection point.
+ // Thus we cannot use the float variant delivered by
+ // hit.getWorldIntersectPoint() but we have to redo that with osg::Vec3d.
+ osg::Vec3d point = hit.getLocalIntersectPoint();
+ if (hit.getMatrix())
+ point = point*(*hit.getMatrix());
+ double newdist = length(start - toSG(point));
if (newdist < dist) {
dist = newdist;
- nearestHit = point;
+ nearestHit = toSG(point);
+ hits = true;
}
}
}
return hits;
}
+
+bool FGScenery::scenery_available(const SGGeod& position, double range_m)
+{
+ if(globals->get_tile_mgr()->scenery_available(position, range_m))
+ {
+ double elev;
+ if (!get_elevation_m(SGGeod::fromGeodM(position, SG_MAX_ELEVATION_M), elev, 0, 0))
+ return false;
+ SGVec3f p = SGVec3f::fromGeod(SGGeod::fromGeodM(position, elev));
+ simgear::CheckSceneryVisitor csnv(getPagerSingleton(), toOsg(p), range_m);
+ // currently the PagedLODs will not be loaded by the DatabasePager
+ // while the splashscreen is there, so CheckSceneryVisitor force-loads
+ // missing objects in the main thread
+ get_scene_graph()->accept(csnv);
+ if(!csnv.isLoaded())
+ return false;
+ return true;
+ }
+ return false;
+}
+
+SceneryPager* FGScenery::getPagerSingleton()
+{
+ static osg::ref_ptr<SceneryPager> pager = new SceneryPager;
+ return pager.get();
+}
+
projects / flightgear.git / blobdiff