-// Generate a taxi sign
-ssgBranch *gen_taxi_sign( const string path, const string content );
-
-
-// Generate a runway sign
-ssgBranch *gen_runway_sign( const string path, const string name );
+// Create an ssg leaf
+ssgLeaf *gen_leaf( const string& path,
+ const GLenum ty, const string& material,
+ const point_list& nodes, const point_list& normals,
+ const point_list& texcoords,
+ const int_list node_index,
+ const int_list& tex_index,
+ const bool calc_lights, ssgVertexArray *lights );