the gmapping requires laserscan and odometry to build a map can i generate the odometry by IMU and use hokuyo_node ??? i have
i have tried by pub /odom by a node but that is not working i built map using hector_slam i want to use gmapping ;)
What do you mean by "not working"?
gmapping requires a transform from odom to base_link. If this does not exist, this could be the Problem.