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2018-09-13 03:51:48 -0500 | marked best answer | How to use YDLIDAR X4 in Nav2D Hi guys I'm back into ROS and Nav2d world :) During my study I was using the robot from university where I implemented ROS and Nav2d into the robot. I'm so glad to use Nav2d that now I want to build my own SLAM robot. I have bought Lidar sensor YDLIDAR X4 which is support with ROS package. First of all I want to implement the Lidar by running Tutorial2.launch. How can I do that, if it is possible ? |
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2018-08-30 07:10:09 -0500 | asked a question | How to use YDLIDAR X4 in Nav2D How to use YDLIDAR X4 in Nav2D Hi guys I'm back into ROS and Nav2d world :) During my study I was using the robot from |
2018-07-09 14:07:05 -0500 | marked best answer | How to use ROS in Eclipse when make eclipse-project did not worked ? Hi I want to run the beginner_tutorials in Eclipse. I have installed Eclipse for c++ and ROS is working fin, but I can not make the eclipse project! I have copied my beginner tutorial from catkin_ws and past it in Eclipse's workspace then when I try to make it (by following this side http://wiki.ros.org/IDEs#Eclipse ) I get this message: How can I fix this problem ? Edit: thanks @ahendrix and @emersonfs for guidance. But unfortunately I did not have success. It mention that "Now you can import your project as existing project into workspace" !
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2017-09-13 18:06:35 -0500 | marked best answer | How to setup the yaml files for a modified map? Hi all I'm using Nav2d where the part of simulator is replaced with my own physical robot. The map in simulator has larger dimension size than my map which is only 5x3 meters. Since the map size is changed then I understand that costmap.yaml, operator.yaml and navigator.yaml has to be changed, where I have set them to : costmap.yalm operator.yaml navigator.yaml I understand the parameters in navigator when I change them, and it make good since but the reaction of robot is randomly each time when I change parameters in costmap and operator. My question is, am I hitting some limitations in these two files since robot stops after 20 cm moving or just make a turn ? Is there other files I also must change when map size is changed ? |
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2017-08-02 16:30:37 -0500 | marked best answer | How to initialize robot's position in RVIZ ? I'm using Nav2d simulator where in RVIZ the robot's position is set to X=0 and Y=0 I want to initialize the position to other coordinate for each time when I start the launch file. I have been looking in tutorial2.rviz file and changed some of parameters but it didn't changed the position. I'm wondering if the robots position is not set in the tutorial2.rviz file then, the program start the position by it self in x=0, y=0. So my question is where can I find the "parameter name" for x and y position of robot where I can add in tutorial2.rviz file? I'm appreciating help since it will solve many of my problems. |
2017-06-06 06:13:56 -0500 | marked best answer | Understanding launch file from nav2d tutorial I have a node that I want to subscribe two topics from nav2d, I'm interested to use the /base_scan and /odom topics. When I look in launch files then I can see I know that "scan" in stage that is remapped to the "base_scan" topic. But what is the remap name for /odom or /base_pose_ground_truth topic ? Or where can I find it ? Can I for example name /odom topic as |
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2017-04-20 14:12:18 -0500 | marked best answer | nav2d installation When I run the command line: |
2017-04-20 14:12:01 -0500 | marked best answer | How to install nav2d packages I have installed the nav2d from http://wiki.ros.org/nav2d by using: sudo apt-get install ros-indigo-nav2d and then I have to install additional packages, but it dos not work! I use for example: sudo apt-get install stage_ros but get this output: Reading package lists... Done
Building dependency tree Can anyone help to how can I install these packages ? |
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2016-11-24 23:46:32 -0500 | marked best answer | [rospack] Error: package 'beginner_tutorials' not found Hi I'm trying to learn the ROS tutorial --> Writing a Simple Publisher and Subscriber (C++) In terminal it can find: rosrun turtlesim turtlesim_node but not: rosrun beginner_tutorials talker It give the message: [rospack] Error: package 'beginner_tutorials' not found I have tried to find a solution in this side but I'm not sure what should I set in .bashrc, this is what I have in my file: |
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2016-07-12 03:03:42 -0500 | commented answer | What is meaning of Operator's topics ? Thanks a lot for all the help during my semester Sebastian :) My exam is over now and in future I will see if I can buy or make a robot, then can run with ROS then it will be fun to implement nav2d :D |
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2016-06-30 10:29:23 -0500 | commented answer | What is meaning of Operator's topics ? From /cmd topic, turn has only one parameter, but /Operator/desired shows x and y. Is it because operator node convert the value of turns into locations in x and y ? |
2016-06-30 06:51:33 -0500 | asked a question | What is meaning of Operator's topics ? What does the blue and the green line means in Rviz while using tutorial2 for autonomous not manually (joystick) ? According to http://wiki.ros.org/nav2d/Tutorials/R... The blue line is the input command. The input command |
2016-06-30 04:54:50 -0500 | asked a question | Robot's pose in Nav2d I have been working mostly with Self-Loacalizer node and my question is, does other nodes know about robot's position at the beginning, where in coordinate robot is located ? Or does non of the nodes know about robot's pose and when robot is running through in map the robot's pose is estimated from Self-Localizer ? |
2016-06-30 03:16:40 -0500 | asked a question | Flow chart of localizer node Hi Can any one confirm whether my flowchart of Localizer node is correct or does it miss something ? And why does Localizer node requests map from MapServer node via service call? Couldn't it get information from |
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2016-06-17 11:52:01 -0500 | marked best answer | Does Selflocalizer get map via service call from MapServer ? It is not shown in rqt_graph the service call connection for SelfLocalizer node to where ?
From Are they from MapServer node ? And what does MapServer node do, because is is not in Nav2d package ? |