chenlee's profile - activity

I want get the robot position(something like the coordinate x,y,z) , I know that hector_gazebo_plugins can do this,but I don't know how to use the API,did something more simple to get the robot position in gazebo?

I am new to ROS and programme,I want to know the position of robot in gazebo ,so I download the hector_gazebo_plugins code which have GazeboRosGps package,but I know nothing about the use of the code .So I want to know how to use the hector_gazebo_plugins,thanks!

Thanks.I thought there need a API so I can use directly.

My device is a indoor positioning equipment called Ubisense which can publish location date(like three-dimensional coordinate x, y, z),but I don't know how ROS read it.

I am trying to read indoor positioning equipment date to ROS.The indoor positioning equipment called Ubisense which can publish location date(like three-dimensional coordinate x, y, z) to local area network.So I want knew about how ROS read the indoor positioning equipment date.

Thanks,the answer is what you said.

I want to use kinect's ranger date,I subscribe the sensor_msgs/LaserScan's message,my callback function is below ,for I want to see the rangers[] date:

void kinectMessageReceived(const sensor_msgs::LaserScan& msg)
{
    ROS_INFO_STREAM(msg.ranges[0]);
}

but I received the follow message ,so why it input nan ,what I can do to get ranger message?

[ INFO] [1470536730.887186730]: nan
[ INFO] [1470536730.921098262]: nan
[ INFO] [1470536730.952966983]: nan
[ INFO] [1470536730.986829834]: nan
[ INFO] [1470536731.023610700]: nan
[ INFO] [1470536731.055973256]: nan
[ INFO] [1470536731.086879971]: nan
[ INFO] [1470536731.121896758]: nan