how to use TrajectoryPlannerROS::checkTrajectory
Hello, I sent a path to my move_base and i want to know if i can apply it. So I was thinking to use base_local_planner::TrajectoryPlannerROS . - Inittialise it with TrajectoryPlannerROS (std::string...
View Articlewhere are stored obstacles from map?
hello, I want to check if my path is correct on many maps, so i want to know the position of the obstacles. The map is provided by map_server ( a picture in black for obstacles and white for empty...
View ArticleWhy does the DWA Local Planner need an acceleration value of >= 1.0?
Sometimes, in cluttered environments, our (differential wheeled) robot seems to accelerate too fast and navigates itself into places it cannot escape from. Just to test if a lower acceleration would do...
View ArticleROS navigation without amcl / localization ?
Hi, Is it possible to run ROS navigation without amcl or any kind of localization? I still want to a static map that I built using gmapping, just don't want any localization. Would that mean I should...
View ArticleDWA planner failed to produce path
**UPDATE:** In the end this seems to be due to a strange interaction between our robot model and environment that seems to have only manifested under OS X. Thanks for all your help though. I am running...
View Articleheading_scoring heading_scoring_timestep and heading_lookahead
Hi, As mentioned in [this question](http://answers.ros.org/question/188739/bias-move_base-to-move-forward-and-not-turn/), I'm trying to smoothen the movements of my robot when moving along straight or...
View Articleedit the package navigation
Hello ! I used `navigation package` in my robot , but now I want to modify some code in the `base_local_planner` of `navigation` . I know that I cannot edit the source file install in...
View ArticleDoes the move_base plan a navigation in real time ?
Hello ! Now I meet a new question . I had a LIDAR on my real car , and the pointclouds of obstacle were showed around the simulate car on the blank map . When I give a goal `2D navigation` on the blank...
View Article[Hydro] Error in move_base.launch rviz
I succed finally to launch my move_base.launch file. And when with rviz I tried to tell where the robot is in the map, with the 2d Pose Estime, i got this message : Failed to transform initial pose in...
View ArticleGlobal Costmap only publishing once to a subscriber?
Hello. I'm using the amcl_demo.launch file to localize to a static map, and gather costmap data of the environment. When I try to subscribe to the global_costmap/costmap topic, it only publishes once,...
View ArticleIs it feasible to use two local planner in Move_base?
Hi,all, I want to combine the functionality of collision avoidance of DWAPlanner and the functionality of multi-robot collision avoidance of...
View Articlemove_base launch fails due to: cannot marshal None unless allow_none is enabled
Dear all, I was following the navigation tutorial for ROS Hydro installed on my UDOO board robot. I follow the tutorial on the Navigation ROS Wiki but, launching the move_base.launch file, I have a...
View Articlemove_base_node
I was going through the code base of ROS navigation. I have some difficulty understanding the name field and type field for running a node in a launch file. For example, I run the move_base node using...
View Articlemove_base publishes cmd_vel with all 0
Hi, i am working on a pioneer3DX and the navigation stack. But the problem is, sometimes move_base publishes under cmd_vel a geometry_msgs/Twist with all linear and all angular values 0. Here a picture...
View Articleuse some functions of move_base
Hello! Is there any way to use only some functions of move_base? I want to use in my node only the global costmap created with move_base and nothing else (no planners)
View ArticleProblems with move_base
I have a movable robot which I control properly with the ps3 joystick. I have implemented recently an AMCL filter and a path planning with move_base package. When I try to move the robot defining a...
View Articlewhy some empty areas are with high cost in costmap?
Hi, all ,I am using turtlebot2( i.e. kobuki) to test my local planner. The global_planner being used is the default navfn of move_base node (i.e. navfn). But some strange path planning happen due to...
View ArticleNavigation cmd_vel and TwistStamped
Hello, I've set up the navigation stack on my robot. The issue is `move_base` is publishing the velocity commands on `cmd_vel` whose message is of type `Twist`, but my robot is subscribing to a topic...
View Articlebase_scan observation buffer has not been updated
Hi, everyone I am using Hokuyo UTM-30LX-EW for navigation. When I roslaunch .launch file for navigaiton, it always gives warning： The base_scan observation buffer has not been updated for 0.66 seconds,...
View ArticleROS navigation_stack implementation in custom robot
Trying to learn ROS while designing a generic software architecture to be used in various autonomous surface vehicles. If we use the navigation stack and the move_base package configured to our robots,...
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