This block samples the vector signal at its input and packs it into a ROS message of type std_msgs::Float64MultiArray. Each time the block is run by its time domain, this message is published under a given topic name.

  ros::NodeHandle rosNodeHandler;                                     // define a handler for ROS nodes
  RosPublisherDoubleArray pubArray(rosNodeHandler, "myNode/myTopic"); // create publisher block