Liuche's profile - activity

Hi, thank you for your attention.

I am running gmapping_demo with turtlebot.

I want to know how to create a Publisher of the (robot) trajectory path in rviz.

And then I could show it in rviz.

It is not path planning. It's just wnat a line will show after the robot walk through.

Is there any tutorial can teach me?

I actually want to know robot's trajectory (create a Publisher nav_msg/Path topic <--- I'm not sure).

There is a video (Just like the red trajectory path).

I want to do is to show Every time robots walk past

my robot is kobuki,I think I may know the answer! It is possible that the path planned by A* is on the grid not on the

I have some questions about globaolpaln in ROS I found that when I was planning a global path, my starting point was (0,

I have some questions about ROS path planning with globalplan I found that when I was planning a global path, my startin

I have some questions about ROS path planning with globalplan I found that when I was planning a global path, my startin

I am designing a system that can use the completed map for path planning and patrol sign-in。 According to what you said

Greeting everyone,

Sorry to disturb you all again,

I have been trying SLAM these days,

I found out why the built map is always bigger than the actual environment.

This is built by Gmapping. Area is 46m²

This is what I painted according to the actual scene. Area is 37m²

Is it because the odometer error causes the map to be larger than the actual?

If so, how can I correct it?

Cheers!!

So is the fact that the 25% error is normal? This makes me more comfortable, or I always worry that the error is too

Why maps built through gmapping are so different from the actual environment, although it looks very similar. Greeting e

Thank you for your advice and help. Compared to our professor, you feel more kindly : ). I will continue to learn, wheth

Hello! Because ROS I was the first time I was exposed to the programming language, so my concept of using Python is stil

Why maps built through gmapping are so different from the actual environment, although it looks very similar. Greeting e

Finally, I used the excel filter to successfully analyze the remaining simple data. thank you~~

sorry for using caps, OK I'll try to split it. ANW thank you for tour answer

How to get x,y from /move_base/NavfnROS/plan I want to record the msg that on the /move_base/NavfnROS/plan These msg c

How to get nav plan 's every poses in Path I want to record the msg that on the /move_base/NavfnROS/plan These msg cla

yes i know,but can i only grab the coordinate of position? because i can use the same way to grab the coordinates of /

How to get nav plan 's poses I want to record the msg that on the /move_base/NavfnROS/plan These msg class is Path , b

How to get nav plan 's poses I want to record the msg that on the /move_base/NavfnROS/plan These msg class is Path , b

Did you lost a </node> after <node pkg="tf" ?<="" p="">

Did you lost a </node> after <node pkg="tf" ?<="" p="">

How to get nav plan 's poses I want to record the msg that on the /move_base/NavfnROS/plan These msg class is Path , b

Sorry to disturb you all!!

I found some problems about gmapping when I using Turtlebot Package, there is a document which named "gridslamprocess.hxx".

roslaunch turtlebot_navigation gmapping_demo.launch

I already modify it, but when I do catkin_make and create a new slam_gmapping,

I run the new one,but I didn't see have any change after I modify it.

I noticed that every time when I run gmapping, there are some information on the screen.

Ex: When scanmatch Done! it will show laser poser: x,y,z on screen. When scanmatch failed,it will use odometry. Then show lp: x,y,z op:x,y,z on screen.

So I want to get lp: op: laser pose These (x,y) information, so I'm trying to modify the source code.

When I looked in the source code, I found gridslamprocess.hxx, but i did't see any happened after me modify it

Of course, I already compile after modifying.

I want to get m_lastpartpose.x m_lastpartpose.y m_odopose.x m_odopose.y

But I need some help..

Has anyone ever modified this file? Thank you very much!!😓

I change slam_gmapping.cpp now, and i get what i want, thank you!

Thank you~~ I'll get what I want now!!