hi,

I have achieved the mapping function accroding to http://wiki.ros.org/rtabmap_ros/Tutorials/StereoOutdoorMapping . Next i want to learn ros/Tutorials/StereoOutdoorNavigation (http://wiki.ros.org/rtabmap_ros/Tutorials/StereoOutdoorNavigation),and use my own bumblebee2 camera to do the navigation. I found a launch file az3mappingrobotstereonav.launch(https://github.com/introlab/rtabmap_ros/blob/master/launch/azimut3/az3_mapping_robot_stereo_nav.launch). There are a few lines of code in the launch file:

     <!-- AZIMUT 3 bringup: launch motors and TF --> 
<include file="$(find az3_bringup)/az3_standalone.launch"/> 
<node name="joy" pkg="joy" type="joy_node"/> 
    <group ns="teleop"> 
    <remap from="joy" to="/joy"/> 
    <node name="teleop" pkg="nodelet" type="nodelet" args="standalone azimut_tools/Teleop"/> 
    <param name="cmd_eta/abtr_priority" value="50"/> 
</group> 

But I find that i don't have the az3_standalone.launch file which is in the seconde line. Anyone know that what's the role of the launch file ?And where is it? Thank you very much!