Comments on barriers to learning ROS
I began using ROS about 4 months ago and am just now getting the hang of it. As i look back on how confused I was, I've noticed a few key things that made it very difficult for me to learn ROS. I'm not...
View ArticleNode Specific Parameters in YAML
Right now, for every node I am creating a yaml file and put all the parameters inside and call this file in the launch file under the corresponding node. Is it possible to create only one yaml file...
View ArticleHow to implement complex parameters in cpp?
I have written a package to support simple PWM servo motors. To support some features, the node must be initialized with settings for each servo. Here is an example: `/config_servos "servos: [{servo:...
View ArticleDynamic reconfigure of gmapping parameters
Hello all, I'd like to change the gmapping parameters namely xmin, ymin, xmax, ymax dynamically. My first thought was to use the dynamic_reconfigure package, but it seemed that it requires changing...
View ArticleUse param for remapping in launch file
Hello, I have several nodes with common parameters so I tought it would be nice for debugging to have all of them just in one file and not in all of them. This is working fine but the problem is that...
View ArticleRobot localization - any minimum sensor requirements ?
Will the package work fine with the most broken sensors? Well I'm asking because I had a GPS giving noisy data , a very precise IMU with embeded filters and a very basic IMU giving noisy data. I first...
View ArticleQuestions on adapting an algorithm to work with multiple state-space...
Hello, After successful development of an initial version of a **multi-robot localization and object tracking algorithm**, we have the desire to make it accessible to the ROS community. I have some...
View ArticleNames and parametrs
I read this documentation http://wiki.ros.org/Names And I had a few questions What is the hierarchy of names? The example says /foo /stanford/robot/name /wg/node1 But what are these names? Could you,...
View ArticleSet parameters from carmen log file
I have a CARMEN log file which I need to convert to rosbag, and I have to write a C++ program to do that. The file contents some parameters in given form: PARAM robot_acceleration 0.1 (the line also...
View ArticlePoor performance of base_local_planner - advice for parameter tuning?
Hi All, I am having some issues with object avoidance when using move_base. As you can see in [this video I made](https://www.youtube.com/watch?v=nf28qb-ZhEc&feature=youtu.be) the robot doesn't...
View ArticleOpenni2 drivers linux vs windows
Hello, so I am trying to use the windows calibration tool of [Orbbec](https://3dclub.orbbec3d.com/t/universal-download-thread-for-astra-series-cameras/622/1) for my cameras (Astra and Astra S), which...
View Articleros::Service same class instance in frequent callback
Hello People, I'm currently having issues writing a ros service for setting moveit goals. It looks like this: bool myfunc_callback(mypkg::mysrv::Request &req, mypkg::mysrv::Response &res) {...
View ArticleParameters roslaunch from python script
Hello, I need to run various nodes and launch files from my python script. I know there is an [API in python](http://wiki.ros.org/roslaunch/API%20Usage) to do it, but the example it's quite simple and...
View ArticleRosJava Android rosparam files
Hi Is there anyway using rosjava on android to be able to load rosparam files from a config file like normal ROS? because it had to be associated in a launch file and android doesn't have that
View ArticleCan global parameters be used with dynamic_reconfigure?
Hi everyone, when using dynamic_reconfigure, the parameters used are linked to specific nodes. For example, if there is a **cfg/MyConfig.cfg** file with a parameter such as **gen.add('my_param',...
View ArticleRun rosparam load in runtime?
Hi ROS Community, I am relatively new to ROS, but so far I have managed to solve everything using examples and tutorials online. Now, I want to be able to reload the parameters from a certain .yaml...
View ArticleHow to search ROS parameters from Arduino?
I created some parameters using dynamic configure package. I want to access them in arduino using rosserial. I can get normal parameters using getParam() function but the parameters I created using...
View ArticleROSJava -- Parameters and knowing their types ahead of time?
I'm working on updating some old ROSSerial classes to work with the latest version of ROSJava under Groovy. To add support for parameters, I'm looking at the ParameterTree interface and it appears that...
View ArticleCamera Pose Calibration Valid_Pattern_Ratio_Threshold and Circle Spacing
Hi, I started working with the Camera Pose Calibration Package by Delft Robotics (https://github.com/delftrobotics/camera_pose_calibration) to find extrinsic calibration parameters for a Realsense...
View ArticleCan not retrieve parameters.
I am running `ur5_moveit_config demo.launch` from ros-industrial's `universal robot` package and I'd like to control it from my node. For that purpose I need to retrieve several parameters from...
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