Hello! I am running 2 turtlebot3s with ros kinetic. I have them autonomously mapping under namespaces with explorelite and I am trying to merge the maps with link text . We are trying to run mapmerge with known initial positions, because the map merging algorithm with unknown initial positions does not work very well. However, instead of having one map, we are ending up with 2 separate maps in map_merge's rviz instance. Any ideas on how to get these maps to stay merged? I am starting the robots about 1 foot away, next to each other, so I am setting the params like so:

<launch>
    <group ns="/bot1/map_merge">
        <param name="init_pose_x" value="0.0"/>
        <param name="init_pose_y" value="0.0"/>
        <param name="init_pose_z" value="0.0"/>
        <param name="init_pose_yaw" value="0.0"/>
    </group>    
<group ns="/bot2/map_merge">
            <param name="init_pose_x" value="0.0"/>
            <param name="init_pose_y" value="0.3"/>
            <param name="init_pose_z" value="0.0"/>
            <param name="init_pose_yaw" value="0.0"/>
        </group>
    </launch>

and here's the map_merge launch file:

<launch>
<group ns="map_merge">
 <node pkg="multirobot_map_merge" type="map_merge" respawn="false" name="map_merge" output="screen">
   <param name="robot_map_topic" value="map"/>
   <param name="robot_namespace" value=""/>
   <param name="merged_map_topic" value="map"/>
   <param name="world_frame" value="world"/>
   <param name="known_init_poses" value="true"/>
   <param name="merging_rate" value="0.5"/>
   <param name="discovery_rate" value="0.05"/>
   <param name="estimation_rate" value="0.5"/>
   <param name="estimation_confidence" value="0.6"/>
 </node>
</group>
</launch>