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2019-04-24 05:30:32 -0500 marked best answer costmap_2d plugin

Hello. I am a ROS beginner. I am doing SLAM of turtlebot 3 (waffle) in the ubuntu 16.04, ros (kinetic) personal computer environment. I modified local_costmap_params.yaml to use the costmap _ 2 d plugin (Inflation Layer). After the change, it became as follows.

local_costmap: global_frame: /odom robot_base_frame: /base_footprint

update_frequency: 10.0 publish_frequency: 10.0 transform_tolerance: 0.5

static_map: false rolling_window: true width: 3 height: 3 resolution: 0.05 plugins: - {name: inflation_layer, type: "costmap_2d::InflationLayer"}

However, after starting gazebo normally,

$ export TURTLEBOT3_MODEL=waffle $roslaunch turtlebot3_navigation turtlebot3_navigation.launch map_file:=$HOME/map.yaml

When you do this,

Warning: Invalid argument "/map" passed to canTransform argument target_frame in tf2 frame_ids cannot start with a '/' like: at line 134 in /tmp/binarydeb/ros-kinetic-tf2-0.5.18/src/buffer_core.cpp

The error will come out in succession. Could I ask the reason? I feel that I am doing some fundamental mistake. Thank you.!thisplugin

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2019-02-06 03:52:49 -0500 asked a question Implementation of two subscribers

Implementation of two subscribers Hello. I am a ROS beginner. I am doing SLAM of turtlebot 2 in the ubuntu 14.04, ros (i

2019-02-05 03:34:10 -0500 asked a question I want to change the speed command value obtained with DWA with my package.

I want to change the speed command value obtained with DWA with my package. Hello. I am a ROS beginner. I am doing SLAM

2019-01-30 23:05:18 -0500 commented question I would like to ask Trajectory Scoring Parameters of DWA.

yes.However,I cant understand where to be rocal goal.

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2019-01-28 05:06:39 -0500 edited question I would like to ask Trajectory Scoring Parameters of DWA.

I would like to ask Trajectory Scoring Parameters of DWA. Hello. I am a ROS beginner. I am doing SLAM of turtlebot 2 in

2019-01-24 01:52:41 -0500 edited question I would like to ask Trajectory Scoring Parameters of DWA.

I would like to ask Trajectory Scoring Parameters of DWA. Hello. I am a ROS beginner. I am doing SLAM of turtlebot 2 in

2019-01-21 04:50:00 -0500 asked a question I would like to ask Trajectory Scoring Parameters of DWA.

I would like to ask Trajectory Scoring Parameters of DWA. Hello. I am a ROS beginner. I am doing SLAM of turtlebot 2 in

2019-01-11 00:56:00 -0500 marked best answer CMake warning has occurred.

Hello. I am a ROS beginner. I am doing SLAM of turtlebot 3 (waffle) in the ubuntu 16.04, ros (kinetic) personal computer environment.I downloaded and built https://github.com/ros-planning/navig... to install the costmap _ 2 d package. Then, such an error came out.What should I do?

CMake Warning at /opt/ros/kinetic/share/catkin/cmake/catkinConfig.cmake:76 (find_package):
  Could not find a package configuration file provided by "tf2_sensor_msgs"
  with any of the following names:

    tf2_sensor_msgsConfig.cmake
    tf2_sensor_msgs-config.cmake

  Add the installation prefix of "tf2_sensor_msgs" to CMAKE_PREFIX_PATH or
  set "tf2_sensor_msgs_DIR" to a directory containing one of the above files.
  If "tf2_sensor_msgs" provides a separate development package or SDK, be
  sure it has been installed.
Call Stack (most recent call first):
  navigation/costmap_2d/CMakeLists.txt:4 (find_package)


-- Could not find the required component 'tf2_sensor_msgs'. The following CMake error indicates that you either need to install the package with the same name or change your environment so that it can be found.
CMake Error at /opt/ros/kinetic/share/catkin/cmake/catkinConfig.cmake:83 (find_package):
  Could not find a package configuration file provided by "tf2_sensor_msgs"
  with any of the following names:

    tf2_sensor_msgsConfig.cmake
    tf2_sensor_msgs-config.cmake

  Add the installation prefix of "tf2_sensor_msgs" to CMAKE_PREFIX_PATH or
  set "tf2_sensor_msgs_DIR" to a directory containing one of the above files.
  If "tf2_sensor_msgs" provides a separate development package or SDK, be
  sure it has been installed.
Call Stack (most recent call first):
  navigation/costmap_2d/CMakeLists.txt:4 (find_package)
2019-01-10 20:39:58 -0500 marked best answer I want to know the cumulative moving distance of robot from the bag file of the data which moved the robot.

Hello. I am a ROS beginner. I am doing SLAM of turtlebot 2 in the ubuntu 14.04, ros (indigo) personal computer environment.

I would like to make a graph of time and distance traveled. Should I integrate the speed? The error seems to accumulate, is it okay? Thank you if there are other ideas.

2019-01-10 20:39:56 -0500 commented answer I want to know the cumulative moving distance of robot from the bag file of the data which moved the robot.

thank you! I have / tf message on absolute position. I will try to calculate from there.

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2019-01-10 04:44:01 -0500 asked a question I want to know the cumulative moving distance of robot from the bag file of the data which moved the robot.

I want to know the cumulative moving distance of robot from the bag file of the data which moved the robot. Hello. I am

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2019-01-09 04:29:30 -0500 marked best answer I am writing data of turtlebot movement, and I want to write a paper. How can I get the data?

Hello. I am a ROS beginner. I am doing SLAM of turtlebot 2 in the ubuntu 14.04, ros (indigo) personal computer environment.

I need the following data to write a paper. How can I get the data? (In navigation, I want data from RViz where I specified the goal point myself)

  1. The global map and the trajectory that the robot actually moved in the global map

  2. Movement distance and travel time from the start point to the goal point

  3. Data for making graphs of speed and distance, speed and time

that's all. What should I do?rosbag? Thank you.

2019-01-09 04:29:26 -0500 commented answer I am writing data of turtlebot movement, and I want to write a paper. How can I get the data?

yea!!thanks!!

2019-01-09 03:57:09 -0500 commented answer I am writing data of turtlebot movement, and I want to write a paper. How can I get the data?

yes!and publish.however, turtlebot dont move.