I have a custom msg data file containing the data field names that I wish to use for a project.
This data is published in a topic, that is written in Python. What I am trying to do is create a C++ script (Subscriber) that subscribes to this topic and displays a particular name within the msg data.
So far I have written the following:
void callback(const leap_motion_sensor::leap& msg)
{
ROS_INFO("I heard" + msg);
}
int main(int argc, char** argv)
{
ros::init(argc, argv, "features");
ros::NodeHandle n;
//ros::Timer timer1 = n.createTimer(ros::Duration(0.08), callback);
ros::Subscriber sub = n.subscribe("/leapmotion/data", callback);
ros::spin();
return 0;
}
I get the following warning message:
[WARN] [WallTime: 1390260279.317426] Could not process inbound connection: topic t
types do not match: [leap_motion_sensor/leap] vs. [leap_motion_sensor/leapros]
{'topic': '/leapmotion/data', 'tcp_nodelay': '0', 'md5sum':
'3e9a0dc7fd1a98f1d7489e9011c78807', 'type': 'leap_motion_sensor/leap', 'callerid':
'/features'}
Here is what the msg file contains:
Header header
float64[3] hand_direction
float64[3] hand_normal
float64[3] hand_palm_pos
float64 hand_pitch
float64 hand_roll
float64 hand_yaw
I just want to copy the data from the "hand_direction" into a `std::vector` Is this possible and if so, what needs to be in my callback function in order to be able to pass through this data?
Thanks
↧