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Hello, I am trying to read parameters in my program based on this example http://wiki.ros.org/Parameter%20Server
Here is code snippet
std::string my_number;
nh_.getParam("my_number",my_number);
ROS_INFO("\n My Number %s",my_number.c_str());
And I am calling like this rosrun mypkg my_node my_number:=5
This value is not getting read.
Please help, how can I read in my C program.
Thanks, Hemant
my_number:=5 does NOT set a parameter. It remaps the topic my_number to 5.
Either set the parameter on the param server, e.g., via rosparam set or use _my_number:=5 to set a private parameter. In that case you'll also need a private NodeHandle("~") before retrieving the parameter.
Based on suggestion above following code works. and I also set parameter at command line _my_number:=5
ros::NodeHandle nh_param("~");
int my_number;
nh_param.param("my_number", my_number ,int(0));
Thanks, Hemant
Asked: 2015-11-04 01:42:31 -0500
Seen: 346 times
Last updated: Nov 05 '15
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