#Ros occupancy grid data type how to
#Ros occupancy grid data type update
#Ros occupancy grid data type ps3
#Ros occupancy grid data type plus

#Ros occupancy grid data type plus

To use either of the two, my idea would be to to assemble a complete occupancy grid from the initial OccupancyGrid plus the incemental OccupancyGridUpdate, and feed the result to hector_compressed_map_transport or compressed_visualization_transport. () is also outdated and doesn't handle OccupancyGridUpdate messages. It can only deal with nav_msgs/OccupancyGrid messages, which are only published once by costmap_2d. It has been written before the introduction of nav_msgs/OccupancyGridUpdate. Looking around what is available, I found no solution which is working under Hydro/Indigo: Ideally, the solution should be compatible with rviz, but a simple sensor_msgs/Image would also suffice. Hence, I am looking for a method to compress the map data. The problem is that map updates (nav_msgs/OccupancyGrid and nav_msgs/OccupancyGridUpdate messages from costmap_2d) saturate the wireless link. I am running move_base on a robot which is connected via WLAN to a laptop running rviz for visualization. I don't understand why it is happening because I have set the max_vel_theta to 10.0 I have been looking cmd_vel topic and the angular velocity never comes up to 0.5 and I know that lower values than 1.2 makes no movement in the robot. If it is necessary I can send you any bagfile you need. I am using Hydro and this is my config file: The only movement it accomplish is moving forward. When I try to move the robot defining a goal it can not turn or go backward. I have implemented recently an AMCL filter and a path planning with move_base package.

#Ros occupancy grid data type ps3

I have a movable robot which I control properly with the ps3 joystick. What am I missing here? Where are these package on ros-indigo or how can these packages be installed? However, I managed to find them on ros-hydro. When I check the share directory in the ROS_PACKAGE_PATH, these packages are indeed not there. The same goes for the package `costmap_2d`. I ran `rosdep update` but nothing happened.

#Ros occupancy grid data type update

Check the ROS_PACKAGE_PATH or try calling 'rosdep update Error: package 'robotino_local_planner' depends on non-existent package 'nav_core' and rosdep claims that it is not a system dependency. When I run rosmake I get the following error: ROS_PACKAGE_PATH = /home/viki/indigo_ws/sandbox/robotino-ros-pkg:/home/viki/indigo_ws/sandbox:/opt/ros/indigo/share:/opt/ros/indigo/stacks My environment variable ROS_PACKAGE_PATH looks like this: I have set up my workspace with rosbuild according to (). I am trying to run `rosmake robotino` for the (/) in ros-indigo installed from the. I don't know if there is better packages available to use?īased on your experience which one has a potential to use for this purpose?

#Ros occupancy grid data type how to

(each laser map associated with odometry data, so the laser measurement map provided at time t-1 will be projected on laser measurement map at time t, and subtraction is done in the joint area).Ĭould you please guide me how to do it with already available packages in ROS? I found two related packages: costmap_2d and Gmapping. Next, I am going to do a subtraction between a current laser map at time t and laser map provided at time t-1.

So the robot can see 2.5 meters ahead, back, left and right.ģ. Limit this (2d grid) laser measurement map in a rectangle with edge size of lets say 5 meters. Convert laser measurement at time t to 2d grid form that contain free and occupied cells (I call it laser measurement map).Ģ. I am new in ROS and I am going to do a subtraction between a current laser measurement map at time t and time t-1 for moving object detection.