I am using 2 cameras, astra and kinect for mapping. Could someone tell how to run rtabmap for both the cameras simultaneously ?

edit

1. Open launch file named rtabmap.launch
2. change <arg name="namespace" default="rtabmap1"/> <arg name="database_path" default="~/.ros/rtabmap1.db"/>
3. now copy rtabmap.launch file in the same path and rename it as rtabmap2.launch and agin edit it
4. change <arg name="namespace" default="rtabmap2"/> <arg name="database_path" default="~/.ros/rtabmap2.db"/>
5. now launch 2 different launch file or

add namespace:=rtabmap2 and databse_path:= ~/.ros/rtabmap2.db at the end of launch command