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2017-07-11 01:04:50 -0500 answered a question QtCreater cannot show ROS packges?

What I really can recommend is the ROS Qt Creator Plug-in. Its a really nice plugin, where you can easily import ROS Wor

2017-06-30 03:03:55 -0500 received badge  Nice Answer (source)
2017-06-27 02:02:26 -0500 answered a question plotting real time data

I did liveplotting in the past in two ways: Your prefered way is the matplotlib so thats pretty easy and I explain a li

2017-06-22 03:18:15 -0500 commented question Pointcloud2 messages and logical operations...

What means AND in this content for you? So when you have for example two points (here 2d for simplification) (1,2) and

2017-06-22 03:17:55 -0500 commented question Pointcloud2 messages and logical operations...

What means AND in this content for you? So when you and for example two points (here 2d for simplification) (1,2) and (

2017-06-01 01:32:54 -0500 edited answer How to use nav_transform_node

So this you really checkout this? Because there are some notes you dont follow. They suggest that you actually run two r

2017-06-01 01:29:48 -0500 edited answer How to use nav_transform_node

So this you really checkout this? Because there are some notes you dont follow. They suggest that you actually run two r

2017-05-30 02:07:07 -0500 received badge  Autobiographer
2017-05-29 00:03:55 -0500 answered a question How to use nav_transform_node

So this you really checkout this? Because there are some notes you dont follow. They suggest that you actually run two r

2017-05-24 08:41:52 -0500 commented question add potential field method as a global planner plug-in

Ah and can you check if your plugin is listed when you type rospack plugins --attrib=plugin nav_core in a sourced termin

2017-05-24 08:12:17 -0500 commented question add potential field method as a global planner plug-in

hm ok. Can I see your launch file with the corresponding parameter?

2017-05-24 07:57:48 -0500 commented question add potential field method as a global planner plug-in

what I really would recommend is that you add target_link_libraries(potential_field_lib ${catkin_LIBRARIES} ) t

2017-05-24 07:08:09 -0500 commented question add potential field method as a global planner plug-in

no what we are searching for is the libpotential_field_lib

2017-05-24 06:57:06 -0500 commented question add potential field method as a global planner plug-in

and the lib exists in the answer described folder?

2017-05-24 06:50:02 -0500 answered a question Which is the best Visual Slam algorithm to implement using stereo vision? Are there any source code available?

The state of the Art and Open Source SLAM Algorithm for Visual SLAM and in your case Stereo SLAM to get the correct scal

2017-05-24 03:30:28 -0500 answered a question add potential field method as a global planner plug-in

ok I have to write more than a comment: Ok that just means, that move_base cant find the plugin. What makes me a little

2017-05-24 03:16:56 -0500 answered a question roslaunch launching not in one package

So the turtlesim package tells you that it is subscribing to turtleX/cmd_vel (geometry_msgs/Twist). That means that it

2017-05-24 02:49:31 -0500 commented question add potential field method as a global planner plug-in

Ah there may be several issues for that. But at the first look it seem to be everything ok. Try to source your workspac

2017-05-24 02:47:56 -0500 answered a question catkin & uses

Read: Catkin Catkin - Conceptual Overview

2017-05-23 08:12:24 -0500 commented question How to use nav_transform_node

Ah ok but you need to specify the parameters in the local scope of nodes! so you just load the parameters in the global

2017-05-23 08:10:20 -0500 commented question How to use nav_transform_node

Ah ok but you need to specify the parameters in the local scope of nodes! so you just load the parameters in the global

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2017-05-22 07:59:56 -0500 commented answer Bad map on rviz using gmapping

Your are right. GMapping is only updating the map when you drive a minimum distance specified by the parameter linearUpd

2017-05-22 07:53:56 -0500 answered a question Unable to locate package ros-indigo-desktop-full

Dont know if this still actual, but you can find the package only for the 64-Bit version of Ubuntu. Is that probably you

2017-05-22 07:50:22 -0500 commented question How to use nav_transform_node

Did you check this? But what I currently see is, that you give your nodes no parameters. Where are your parameters locat

2017-05-22 07:41:32 -0500 commented answer transform pointcloud with tf2

perfect! You are welcome

2017-05-22 07:29:30 -0500 edited answer transform pointcloud with tf2

Looks good what you are doing and works for me! What you actually have is a linking error. Do you link against the tf2

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2017-05-22 07:16:04 -0500 commented answer transform pointcloud with tf2

Ah and please always update your Question and dont post answers!

2017-05-22 07:15:27 -0500 commented answer transform pointcloud with tf2

Its still a linking error. Can you also add sensor_msgs to the the catkon packages and try again?

2017-05-22 06:56:43 -0500 edited answer transform pointcloud with tf2

Looks good what you are doing and works for me! What you actually have is a linking error. Do you link against the tf2

2017-05-22 06:56:16 -0500 answered a question transform pointcloud with tf2

Looks good what you are doing and works for me! What you actually have is an linking error. Do you link against the tf2

2017-05-22 06:52:39 -0500 answered a question transform pointcloud with tf2

What you can do is the following: const geometry_msgs::TransformStamped transformation = tf2Buffer.lookupTransform(dest

2017-05-22 04:36:46 -0500 answered a question catkin_make erorr, I have removed some un-used files then I got trouble with catkin_make any one can help me plz

This error message tells you that the ROS Package diagnostic_updater is missing. There can be some reasons for that:

2017-05-22 04:28:48 -0500 commented question Can't get dynamic reconfigure to spin when callback is a member of a class

Did you really change the values with the dynamic parameters? The Callback method is just called when one of the values

2017-05-22 02:11:19 -0500 answered a question Publishing diagnostics from C++?

Its like publishing anything else. Setup a Publisher, fill in the Message and publish it. Here is a completely sensel

2017-05-22 01:05:47 -0500 commented answer how to use rosbag API?

Goog answer. Just be carefull with point 3: Many beginners dont use catkin tools and dont know that this exists. This st

2017-05-22 01:00:04 -0500 answered a question Get (x,y) coordinates of an obstacle from a map

Hallo avicenna, actually in occupancy grid maps like in gmapping you dont speak of (x,y) coordinates you are speaking o