C++ SimulationController::world方法代码示例

   // ----------------------------------------------------------------------
   void
   ExampleTask::
   run( shawn::SimulationController& sc )
      throw( std::runtime_error )
   {
      require_world( sc );

      double count = 0;

      for( shawn::World::const_node_iterator
               it = sc.world().begin_nodes();
               it != sc.world().end_nodes();
               ++it )
      {
         count++;
      }
      
      INFO( logger(), "visited " << count << " nodes" );
   }

		// ----------------------------------------------------------------------
		void
			TreeCreationTask::
			create_tree_from_file( shawn::SimulationController& sc,
								   routing::tree::TreeRouting& routing_instance,
								   const std::string& filename )
			throw()
		{
			double now = sc.world().current_time();
			ifstream file_in;
			file_in.open(filename.c_str(),ifstream::in);
			if(!file_in)
			{
				ERROR(this->logger(),"Unable to open file " + filename + "!");
				abort();
			}
			string buf;
			while( getline(file_in,buf) )
			{
				StrTok tok(buf,"\t ");
				double line[6];
				int i = 0;
				for(StrTok::iterator it = tok.begin(); it != tok.end(); ++it)
				{
					line[i++] = conv_string_to_double(*it);
				}
				shawn::Node* node = sc.world_w().find_node_by_id_w( (int)line[0] );
				shawn::Node* sink = sc.world_w().find_node_by_id_w( (int)line[1] );
				shawn::Node* neighbor = sc.world_w().find_node_by_id_w( (int)line[2] );
				int hops_to_sink = (int)line[3];
				double node_x = line[4];
				double node_y = line[5];
				double node_real_pos_x = conv_string_to_double(conv_double_to_string(node->real_position().x()));
				double node_real_pos_y = conv_string_to_double(conv_double_to_string(node->real_position().y()));
				if( !( node && sink && neighbor ) )
				{
					ERROR(this->logger(),"Error while reading file!");
					abort();
				}
				if( node_x != node_real_pos_x ||
					node_y != node_real_pos_y )
				{
					ERROR(this->logger(),"Position mismatch! Read x: "
						  + conv_double_to_string(node_x)
						  + ", y: " + conv_double_to_string(node_y)
						  + " Real position x: " + conv_double_to_string(node_real_pos_x)
						  + ", y: " + conv_double_to_string(node_real_pos_y));
					abort();
				}
				routing_instance.tree_routing_table_update(*node,*sink,TreeRoutingTableInfo(*neighbor,hops_to_sink,now));
			}
			INFO(this->logger(),"Reading from file: " + filename + " succeeded!");
		}

   // ----------------------------------------------------------------------
   void
   VisualizationTaskCreate::
   run( shawn::SimulationController& sc )
      throw( std::runtime_error )
   {
      Visualization* vis;

      require_world(sc);

      std::string name = sc.environment().optional_string_param( "vis", "visualization" );
      visualization_keeper_w(sc).add(vis=new Visualization(name));

      std::string type = sc.environment().optional_string_param( "node_type", "default" );
      DrawableNodeFactoryHandle dnfh = sc.keeper_by_name_w<DrawableNodeKeeper>("DrawableNodeKeeper")
         ->find_w(sc.environment().optional_string_param("drawable_nodes", type));

      sc.world_w().add_node_change_listener(*vis);
      vis->set_world( sc.world() );
      vis->init();

      DEBUG( logger(),
             "created visualization '" << name << "'" );

      GroupElement* ge =
         new GroupElement( "all.nodes" );
      ge->init();
      vis->add_element(ge);

      for( shawn::World::const_node_iterator
              it = sc.world().begin_nodes();
           it != sc.world().end_nodes();
           ++it )
         {
            DrawableNode *dn = dnfh->create(*it);
            dn->init();
            vis->add_element(dn);
            ge->add_element(*dn);
         }
   }

		// ----------------------------------------------------------------------
		void
			TreeCreationTask::
			run( shawn::SimulationController& sc )
			throw( std::runtime_error )
		{
			require_world( sc );
			bool tree_routing_set = false;
			bool filename_set = false;
			string tree_routing_instance = sc.environment().optional_string_param("routing_instance","",&tree_routing_set);
			string filename = sc.environment().optional_string_param("tree_creation_filename","",&filename_set);
			TreeRouting* routing_instance = NULL;

			if( tree_routing_set )
			{
				RoutingBaseHandle rbh = routing::routing_keeper_w(sc).find_w(tree_routing_instance);
				routing_instance = dynamic_cast<TreeRouting*>( rbh.get() );
				if( ! routing_instance )
				{
					ERROR(this->logger(),"The given routing is no TreeRouting!");
					abort();
				}
				routing_instance->init( sc.world_w() );
			}

			if( tree_routing_set && filename_set )
			{
				create_tree_from_file(sc,*routing_instance,filename);
				return;
			}
			int sink_id = sc.environment().required_int_param("sink_id");
			const Node* sink = sc.world().find_node_by_id( sink_id );

			if( tree_routing_set && ( ! filename_set ) )
			{
				create_tree_in_tree_routing( *routing_instance, *sink );
				return;
			}

			if( ( ! tree_routing_set ) && filename_set )
			{
				int max_hops = sc.environment().optional_int_param("max_hops",INT_MAX);
				create_tree_in_file( sc, filename, *sink, max_hops );
				return;
			}
		}