+ return *get_item(tracks, &tt);
+}
+
+const VehicleType3D &Catalogue3D::get_vehicle(const VehicleType &vt) const
+{
+ return *get_item(vehicles, &vt);
+}
+
+const SignalType3D &Catalogue3D::get_signal(const SignalType &vt) const
+{
+ return *get_item(signals, &vt);
+}
+
+void Catalogue3D::track_added(const TrackType &track)
+{
+ tracks[&track] = new TrackType3D(*this, track);
+}
+
+void Catalogue3D::vehicle_added(const VehicleType &veh)
+{
+ vehicles[&veh] = new VehicleType3D(*this, veh);
+}
+
+void Catalogue3D::signal_added(const SignalType &sig)
+{
+ signals[&sig] = new SignalType3D(*this, sig);
+}
+
+void Catalogue3D::build_endpoint_mesh()
+{
+ const Profile &ballast_profile = catalogue.get_ballast_profile();
+ const Vector &ballast_min = ballast_profile.get_min_coords();
+ const Vector &ballast_max = ballast_profile.get_max_coords();
+
+ const Profile &rail_profile = catalogue.get_rail_profile();
+ const Vector &rail_min = rail_profile.get_min_coords();
+ const Vector &rail_max = rail_profile.get_max_coords();
+
+ float gauge = catalogue.get_gauge();
+
+ float width = max(max(-ballast_min.x, ballast_max.x)*2, gauge+(rail_max.x-rail_min.x)*2)+0.004;
+ float height = ballast_max.y-ballast_min.y+rail_max.y-rail_min.y+0.01;
+
+ GL::MeshBuilder bld(endpoint_mesh);
+ bld.normal(1, 0, 0);
+ bld.begin(GL::QUADS);
+ bld.vertex(0, width/2, 0);
+ bld.vertex(0, width/2, height);
+ bld.vertex(0, -width/2, height);
+ bld.vertex(0, -width/2, 0);
+ bld.end();
+}
+
+FS::Path Catalogue3D::locate_file(const string &name)
+{
+ if(FS::exists(name))
+ return name;
+
+ FS::Path path = FS::Path("data")/name;
+ if(FS::exists(path))
+ return path;
+
+ throw runtime_error("Can't locate "+name);
+}