C++ SimulationController::world_w方法代码示例

		// ----------------------------------------------------------------------
		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
			TreeCreationTask::
			create_tree_in_file( shawn::SimulationController& sc,
								 const std::string& filename,
								 const shawn::Node& sink,
								 int max_hops )
			throw()
		{
			// Avoid appending
			bool append = sc.environment().optional_bool_param("append",false);
			if(!append)
			{
				remove( filename.c_str() );
			}
			// Init stuff
//			double now = sink.current_time();
			NodesToExamineMap nodes_to_examine;
			TreeCreationHopsToSinkResult& result = *( new TreeCreationHopsToSinkResult( sc.world_w() ) );
			ofstream file_op(filename.c_str(),ios::app);
			// Treat the sink
			file_op << sink.id() << "\t"
					<< sink.id() << "\t"
					<< sink.id() << "\t"
					<< 0 << "\t"
					<< sink.real_position().x() << "\t"
					<< sink.real_position().y() << endl;
			result[sink].hops_ = 0;
			nodes_to_examine.insert( NodesToExamineMapValueType(0,&sink) );
			// Main loop
			while( ! nodes_to_examine.empty() )
			{
				NodesToExamineMapIterator min_it = nodes_to_examine.begin();
				const shawn::Node* min_node = min_it->second;
				nodes_to_examine.erase( min_it );
				for( World::const_adjacency_iterator adj_it = min_node->begin_adjacent_nodes();
					 adj_it != min_node->end_adjacent_nodes(); ++adj_it )
				{
					int hops = result[*min_node].hops_ + 1;
					if( hops < result[*adj_it].hops_ )
					{
						assert( result[*adj_it].hops_ == INT_MAX );
						result[*adj_it].hops_ = hops;
						file_op << adj_it->id() << "\t"
								<< sink.id() << "\t"
								<< min_node->id() << "\t"
								<< hops << "\t"
								<< adj_it->real_position().x() << "\t"
								<< adj_it->real_position().y() << endl;
						if( hops < max_hops )
						{
							nodes_to_examine.insert( NodesToExamineMapValueType( hops, &(*adj_it) ) );
						}
					}
				}
			}
			file_op.clear();
			file_op.close();
			delete &result;
		}

		// ----------------------------------------------------------------------
		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;
			}
		}

   // ----------------------------------------------------------------------
   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);
         }
   }