> Of course ; the question was whether the node should re-publish a map > that has not changed or only publish it next time it changes. When maps > are huge (our search-and-rescue mapping using modular_cloud_matcher has > maps of 600k points), repetitive updates of similar maps is a waste of > bandwidth. I have added a "~republish_map" service to do on-demand > republishing, which is useful, for instance if rviz was loaded after the > map was published. I have removed this option and instead enforced the map topics to be latched. -- Dr Stéphane Magnenat http://stephane.magnenat.net