ros_master's profile - activity

I try to run teleop node and the autonomous navigation at the same time.But when i use 2d nav goal at auotonomous navigation,turtlebot doesn't move.What do you think about this problem?

Can you tell me what is the all story? Where can I learn what should I do in detail?

Hello guys, Following the SendingSimpleGoals tutorial

http://wiki.ros.org/navigation/Tutori...

, after running the executable, Waiting for the move_base action server to come up waits forever. Can anyone suggest me?

Hi guys. I want to move the turtlebot. I am using Hydro and KobukiBase. Firstly i created package inside my catkin_ws:

$ catkin_create_pkg forward std_msgs rospy roscpp actionlib tf geometry_msgs move_base_msgs .

Then i edit CMakeList:

add_executable(gg src/gg.cpp) and target_link_libraries(gg, ${catkin_LIBRARIES})

Thirdly, i run these commads:

catkin_make
roscore
export ROS_PACKAGE_PATH=$ROS_PACKAGE_PATH:'pwd'
source ./devel/setup.bash
rosrun forward gg.cpp

gg.cpp :

 #include <ros/ros.h>
#include <geometry_msgs/PoseWithCovarianceStamped.h>
#include <geometry_msgs/Twist.h>
#include <tf/transform_datatypes.h>
#include <stdio.h>
#include <math.h>
#include <tf/transform_listener.h>
#include <algorithm>
#include <geometry_msgs/PointStamped.h>
#include <std_msgs/Header.h>
#include <iostream>


int main(){

 geometry_msgs::PointStamped p;
 geometry_msgs::PointStamped p1;
 p.header.stamp = ros::Time();
 std::string frame1 = "/camera_depth_optical_frame";
 p.header.frame_id = frame1.c_str();

 p.point.x = 0;
 p.point.y = 0;
 p.point.z = 1; // 1 meter

// std::string frame = "map";

 /*try
 {
   listener.transformPoint(frame,p,p1);
 }catch(tf::TransformException& ex) { ROS_ERROR("exception while transforming..."); }
*/
 // create message for move_base_simple/goal 
 geometry_msgs::PoseStamped msg;
 msg.header.stamp = ros::Time();
 std::string frame = "/map";
 msg.header.frame_id = frame.c_str();
 msg.pose.position = p1.point;
 msg.pose.orientation = tf::createQuaternionMsgFromYaw(0.0);
 //publisher.publish(msg);

}

errors:

[rosrun] Couldn't find executable named gg.cpp below /home/turtlebot/catkin_ws/src/forward
[rosrun] Found the following, but they're either not files,
[rosrun] or not executable:
[rosrun]   /home/turtlebot/catkin_ws/src/forward/src/gg.cpp

I think this code is correct and executable but rosrun command is wrong. I don't fix this. What do you think about these errors?

Invoking "make" failed

make[1]: * [ileri/CMakeFiles/gg.dir/all] Error 2

make[2]: * [ileri/CMakeFiles/gg.dir/src/gg.cpp.o] Error 1

/home/turtlebot/catkin_ws/src/ileri/src/gg.cpp:31:3: error: expected unqualified-id before ‘catch’

/home/turtlebot/catkin_ws/src/ileri/src/gg.cpp:28:2: error: expected unqualified-id before ‘try’

/home/turtlebot/catkin_ws/src/ileri/src/gg.cpp:18:2: error: ‘p’ does not name a type

After compile:

[100%] Building CXX object ileri/CMakeFiles/gg.dir/src/gg.cpp.o

i tried but doesn't run. Are there problems about include? What do you think?

Hi guys. I want to move the turtlebot. Firstly i created package inside my catkin_ws

$ catkin_create_pkg /..package_name../ std_msgs rospy roscpp actionlib tf geometry_msgs move_base_msgs .

Then i edit CMakeList

add_executable(myProgram src/main.cpp) and target_link_libraries(<executabletargetname>, ${catkin_LIBRARIES})

Thirdly, i run these commads:

catkin_make
roscore
export ROS_PACKAGE_PATH=$ROS_PACKAGE_PATH:'pwd'

source ./devel/setup.bash
rosrun package_name cpp_name

.cpp :

geometry_msgs::PointStamped p;
 geometry_msgs::PointStamped p1;
 p.header.stamp = ros::Time();
 std::string frame1 = "/camera_depth_optical_frame";
 p.header.frame_id = frame1.c_str();

 p.point.x = 0;
 p.point.y = 0;
 p.point.z = 1; // 1 meter

 std::string frame = "map";

 try
 {
   listener.transformPoint(frame,p,p1);
 }catch(tf::TransformException& ex) { ROS_ERROR("exception while transforming..."); }

 // create message for move_base_simple/goal 
 geometry_msgs::PoseStamped msg;
 msg.header.stamp = ros::Time();
 std::string frame = "/map";
 msg.header.frame_id = frame.c_str();
 msg.pose.position = p1.point;
 msg.pose.orientation = tf::createQuaternionMsgFromYaw(0.0);
 publisher.publish(msg);

Error: Couldn't find executable

Does anyone have an idea?

Hi ZeroCool, i'm struggling with this same problem. Please can you send your all code? Thank for your interest.

In rviz, there are global and local maps, when robot moves, global map coordinates does not change but local ones change, so which coordinates should i use to move robot from somewhere to another where.

Localisation problem : When i move forward robot by using teleoperation, it goes wrong direction in map.

Thank you very much !! I solved the problem in the first question. In the second question, while running robot can localize truly. Robot moves in wrong directions but after I closed the map.

For the first question, map file does not appear in directory which i saved map, this situation happens when i shut down the computer. For the second question map is loaded but robot can not find its location on the appearing map.

Hi guys. I have a problem. I am beginner at ROS Programming. I use RVIZ for mapping. 1) I mapped with Turtlebot using this tutorial: link text . Then next day I tried to open my map using this tutorial: link text but my map didn't open. I can't understand how I will solve this problem.

2) I see that Turtlebot can't localize itself truly on the map when after I open the map at the same day.