Questions tagged [parameters]
The parameters tag has no usage guidance.
98
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13
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Getting parameters of the Parrot ANAFI Drone
I have a Parrot ANAFI Drone. And I want to get its parameters such as height, yaw, pitch, roll angles , velocity, status etc.
But I do not know how to reach these parameters.
I use olypme SDK on ...
- 1
0
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24
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Parrot ANAFI drone parameters
I have a project include the use of Parrot ANAFI drone, however I don't have the values of the inertial parameters such as the mass moment of inertia (I_x,I_y,I_z) only the mass is known.
Can you ...
1
vote
1
answer
72
views
How to get launch parameter (LaunchConfiguration) value in string?
I just want to have a log message with the parameter value, and I can't find how to.
...
- 31
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2
answers
45
views
How are ROS 2 parameters initialized once specified on the command line?
The ROS 2 Design document for the Parameter API, does not give a description of the details of ROS 2 parameter initialization after specifying them on the command line.
Specifically, what happens &...
- 103
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66
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[ROS2]can't load parameters from yaml file when migrating ros1 to ros2
I'm trying to migrate VINS-Mono(https://github.com/HKUST-Aerial-Robotics/VINS-Mono) to ROS2 version, and now there's a problem with reading parameters. I just modified the ROS1 code of reading ...
- 1
0
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1
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27
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Loading 2 yaml's to same parameter namespace
I want to load 2 sets of parameters from 2 different yamls to the same namespace from a launch file, like this:
YAML1:
- id: foo1
waypoints:
- type: foo1
...
- 821
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1
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9
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Parameters ROS2 convention: dots or slashes
Hi!
I was wondering what the official or the conventional delimiter is for parameters in ROS2:
dots like in namespace.param.subparam
slashes like in namespace/param/subparam
This test node in rclcpp ...
0
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1
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28
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How can I call a ros2 executable with arguments from a non-ROS file
Hello,
I have two questions:
I would like to create a ROS API to start ROS nodes from a non-ROS python script.
For example the non-ROS python script: pick.py, would call the pick_ros.py to start a ...
AlexandrosNic
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1
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7
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ROS2 python launch, how to forward launch arguments to xacro models
Hi
I like to use LaunchArgument to process my xacro file, which contains my robot model for gazebo and the robot_description for my robot_state_publisher.
...
Markus Bader
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1
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78
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[ROS2] Any idea on how to pass parameters (YAML) to a Xacro file via launch python script?
In my launch python script I can load and pass parameters from a .yaml file into my code without any problem:
...
Andromeda
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1
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10
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Is it possible to load the parameters file while running?
Is it possible to load a parameter yaml file during runtime?
I have multiple parameter files that I would like to switch parameter file while running.
For example, I have
setting1.yaml
setting2.yaml
...
mutsuyuki
0
votes
2
answers
12
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turtlebot3 navigation parameters
I want to change a turtlebot3 navigation parameter called "inflation radius", I don't know how to actually go into the required yaml file to do so. I'm just confused. A book on programming ...
distro
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1
answer
9
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How is the name field of ParameterDescriptor used by declare_parameter?
The first parameter you pass into every version of declare_parameter is the name of the parameter. If you also specify a name value in the ...
tylerjw
0
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1
answer
34
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[ros2] Launch file arguments, subsititutions, xacro and node parameters
Hi all,
I am having a "fight" with launch-file argument in ROS2 for a few days already. The scenario is the following:
Set parameter when calling launch file.
Use it as argument for xacro ...
- 478
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2
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11
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share params between nodes ROS2
In ROS1 there you can read params from node namespace (prefixing param name with "~") and global namespace (prefixing param name with "/")
If understand the tutorials
https://index....
Wolf
0
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1
answer
22
views
[ROS2] using dynamic parameters in Python
I want to use dynamic parameters in my ROS2 code. I defined a callback function, if a parameter is changed with following line:
...
lmiller
0
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1
answer
25
views
ROS 2 Params YAML File Package-Relative Path
Is there currently any analog to the rosparam flag subst_value for ROS 2 YAML parameter files? I would like to use a package-...
Josh Whitley
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1
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63
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ROS2 add parameter to c++ and launch file
So I'm a novice when it comes to ROS2, but have some experience with ROS1. I've been trying to convert an existing project from ROS kinetic to ROS eloquent. In this project I've made a node in c++ ...
Joe28965
0
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1
answer
2
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Generic robot parameter loading for multiple robots
I currently have a package which subscribes to multiple robots. I wish to use a more generic solution where I use bind to generate the callback for each robot listed in the .yaml file. Example how I ...
bob-ROS
0
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2
answers
38
views
Set parameters in ROS2 using a yaml file without needing to build the package every time
I have been able to include a parameter.yaml file in my test.launch.py file. However if I modify the parameter.yaml file, I need to build the entire package again before seeing changes reflected when ...
a.g
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1
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3
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Is it correct to set topic names from parameters?
This is a mix of a practical question and an academic question.
When, if ever, is it correct to set topic names from parameters? If it is, how do you handle aspects such as the default topic name and ...
- 1,823
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21
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How to get ROS2 parameter hosted by another Node
Hello,
I have been looking through the documentation and can not find any means to get or set parameters of other nodes than the one that has declared the parameters. Is this by design or is there a ...
mequi
0
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1
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1
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ROS Answers SE migration: ros2 turtlesim
Hi guys,
I am using ros2 dashing and work with turtlesim (1.0.1). Unfortunatly, I realized that a number of features described in the tutorial do not work for me.
Action Servers explained in ...
Poseidonius
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1
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2
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launch file parameters that have curly braces
I am using ROS Melodic.
How can I set a parameter in a launch file that resembles a yaml syntax like this:
...
davidem
0
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1
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2
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param robot_description not found by searchParam()
I am running ROS Melodic and I'm trying to create a launch file to run multiple Turtlebot3 that share a map. I have created a one_robot.launch file that launches a ...
davidem
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1
answer
7
views
[ROS2] I can publish a parameter with wrong type and get no exception
Hi guys,
is this expected behavior, that when I publish a parameter with a wrong datatype, the result is always true?
ros2 param set /test/my_double_value 1
...
madmax
0
votes
1
answer
5
views
Params appear broken in ROS2?
According to https://index.ros.org/doc/ros2/Tutorials/Node-arguments/#parameters, if I have a properly formatted parameters yaml file, and I call ros2 run with <...
actinium226
0
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1
answer
13
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ros2 rclpy list parameters from node
Is there an easy way to list parameters from an rclpy Node ??
I can 'manually' set up a service client and do the list_parameters call but it feels like this should ...
artivis
0
votes
1
answer
6
views
Passing Matrices as params in Launch Files
I'd like to pass the data contained within a matrix as a parameter to several nodes in a launch file. This link states how to pass in std::vector<...> params ...
jbu
0
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1
answer
1
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rosnodejs get private param
I've written a ROS node using rosnodejs, and I would like to pass it a privately scoped parameter on the command line like:
rosrun mynode myscript.js _myparam:=foo
What would be as simple as rospy....
griffin
0
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1
answer
100
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Converting dynamic reconfigure to ros2 parameters
This isn't a very clear question, mostly just a dump of my current understanding of how to use ros2 parameters and hopefully any misconceptions can be addressed in comments or answers.
I have many ...
- 3,244
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9
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Check if ROS2 Parameters Exist with RCLCPP
In ROS1 there was the hasParam method.
In ROS2, there doesn't seem to be a way to check if a parameter exists directly without attempting to get the value of the parameter.
A) Is there a way to check ...
- 4,192
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2
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8
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Access parameters set from another node
Hi,
I'm using ROS2 Bouncy.
I have two nodes. What I would like to do is to allow the first node to set some parameters on the parameters server and then make the second node to retrieve these ...
alsora
0
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1
answer
9
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ROS 2 Bouncy get_parameter
Hi,
I'm using ROS 2 Bouncy and I'm trying to get parameters from a yaml file. I checked a few ways to get parameters and I found one that works but takes 3 lines for each parameter :
...
Marc Testier
0
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1
answer
34
views
[ROS2 YAML] Config file without node name
Is it possible to write a YAML parameter file without specifying the ROS2 node name?
The current format for a YAML file is the following:
...
- 184
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18
views
runtime error after trying to set parameters in ROS2
When I try to set parameters, I'm getting the following error:
terminate called after throwing an instance of 'std::runtime_error'
...
mpanah
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1
answer
2
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Need help with passing parameters to a launch file
I would like to over ride rtabmap parameters on a rosrun command line....I want to used the unaltered rtabmap launch file overriding some of the Grid parameters. Can this be done from the command line?...
rnunziata
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1
answer
4
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Initialize parameters via yaml in ros2
According to this PR, we can now initialize parameters via yaml file. I edited the talker example to have the parameter client so I can see the changes in parameters, but when I try to load the ...
aarushg
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1
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1
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Is it possible to set parameters like inertial, collisions in launch not in urdf?
Hi,
I'm working on a robot. I didn't set parameters inertial and collisions in my URDF. Is it possible to set these params in launch file? How? I know that I can change the URDF file, but it is ...
dorothea
0
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1
answer
2
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API for changing a camera resolution
What is the standard ROS way for implementing on-the-fly resolution changing for a camera node?
I haven't found any official articles on this, also I haven't found any popular camera nodes, supporting ...
okalachev
0
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1
answer
10
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How to remap a private parameter
In a launch file I want to remap parameters of my node to other, already existing parameters.
It is working for global parameters but not for private ones.
This is a simple example node "param.py&...
Felix Widmaier
0
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1
answer
2
views
What's the best way to publish dynamic parameters to a topic when they change?
I'd like to publish dynamic parameters (from dynamic_reconfigure) to a topic from a C++ node when they change, for the purpose of recording parameter changes in a bag file. In Python, I just convert ...
somudrog
0
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1
answer
9
views
costmap parameters - navigation stack
Hello,
for me it's unclear what parameters have to/can be in common_costmap_params.yaml, local_costmap_params.yaml and global_costmap_params.yaml
This tutorial http://wiki.ros.org/navigation/Tutorials/...
Mumie
0
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1
answer
14
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RTAB-Map not using correct parameters
I've been trying to get RTAB-Map going in simulation using a depth camera plugin. I've been able to get it all working, however it seems that RTAB-Map uses its default parameters, rather than the ones ...
ufr3c_tjc
0
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1
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3
views
getParam question
I seem to be unable to gain access to params passed to node....I want to read them from a callback.
...
rnunziata
0
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1
answer
6
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Can 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....
Long Smith
0
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1
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1
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Camera 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 ...
Marco Braun
0
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1
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16
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Run 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 ...
angel
0
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1
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2
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Can 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', int_t,....),...
dieg0-
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1
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1
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ros::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:
...
Felix_N