Pose of a robot in RTAB SLAM

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URL: http://official-rtab-map-forum.206.s1.nabble.com/Pose-of-a-robot-in-RTAB-SLAM-tp9753.html

I want to get the pose of multiple robots by doing SLAM. I am able to build map via both robots at the same time, but how do i get the pose of both robots while simultaneously building map of an unknown environment.

I am getting the pose from /rtab/localization_pose which is exactly same to the pose obtained from TF frames through odometry. Is this how its done in SLAM or am I missing something?