/touch_web_state#

Caution

This documentation page has been auto-generated.

It may be missing some details.

/touch_web_state Quick Facts

Category

Touchscreen

Message type

pal_web_msgs/TouchWeb

Direction

➡️ you normally subscribe to this topic.

Quick snippets#

Check the publication rate#
$ rostopic hz /touch_web_state
Display the data published on the topic#
$ rostopic echo /touch_web_state

How to use in your code#

Subscribe to the topic using Python#
 1import rospy
 2from pal_web_msgs.msg import TouchWeb
 3
 4def on_data(msg):
 5
 6   # see http://docs.ros.org/en/api/pal_web_msgs/html/msg/TouchWeb.html
 7   # for the msg structure
 8   print(msg)
 9
10if __name__ == "__main__":
11
12  rospy.init_node("subscriber")
13
14  rospy.Subscriber("/touch_web_state", TouchWeb, on_data)
15
16  rospy.spin()
Subscribe to the topic using C++#
 1#include <ros/ros.h>
 2#include <pal_web_msgs/TouchWeb.h>
 3
 4void on_data(const pal_web_msgs::TouchWeb::ConstPrt& msg)
 5{
 6   // see http://docs.ros.org/en/api/pal_web_msgs/html/msg/TouchWeb.html
 7   // for the msg structure
 8   ROS_INFO_STREAM("Got " << msg);
 9}
10
11int main(int argc, char **argv)
12{
13  ros::init(argc, argv, "subscriber");
14  ros::NodeHandle n;
15
16  ros::Subscriber sub = n.subscribe("/touch_web_state", 10, on_data);
17
18  ros::spin();
19  return 0;
20}

REST endpoint#

You can also access this topic from a webpage displayed on the robot’s touchscreen via this endpoint:

http://ari-0c/topic/touch_web_state

(replace ari-0c by the serial number of your own robot).

See REST interface for the general documentation of the REST endpoints and code samples.