How to save a 2dmap obtained from a topic published by octomap?

Question

Octomap provides a projected 2d map through the topic "projected_map". I want to save this map. The map server is also running. So i remapped the topic in the octomap server launch file :

This info is given in the ros wiki: map (up to fuerte) / projected_map (since fuerte) (nav_msgs/OccupancyGrid)

Downprojected 2D occupancy map from the 3D map. Be sure to remap this topic if you have another 2D map server running. New / changed in octomap_mapping 0.4.4: The topic is now projected_map by default to avoid collisions with static 2D maps 

I am able to visualise in rviz but when i try to save it :

rosrun map_server map_saver -f mapName

The default map is saved rather than the map from octomap.

Any suggestion what is wrong ??

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Originally posted by kk on ROS Answers with karma: 225 on 2013-08-24

Post score: 2

Answer 1

You need to remap map:=projected_map, when saving.

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Originally posted by dornhege with karma: 31395 on 2013-08-24

This answer was ACCEPTED on the original site

Post score: 5

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Original comments

Comment by kk on 2013-08-25:
Thank you very much.