rclcpp | rclcpp | Robotics library

by ros2 C++ Version: 21.3.0 License: Apache-2.0

X-Ray Key Features Code Snippets Community Discussions(6)Vulnerabilities Install Support

kandi X-RAY | rclcpp Summary

rclcpp is a C++ library typically used in Automation, Robotics applications. rclcpp has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

This repository contains the source code for the ROS Client Library for C++ package, included with a standard install of any ROS 2 distro. rclcpp provides the standard C++ API for interacting with ROS 2.

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rclcpp has a low active ecosystem.

It has 385 star(s) with 355 fork(s). There are 48 watchers for this library.

It had no major release in the last 6 months.

There are 180 open issues and 488 have been closed. On average issues are closed in 191 days. There are 54 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of rclcpp is 21.3.0

Quality

rclcpp has 0 bugs and 0 code smells.

Security

rclcpp has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

rclcpp code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

rclcpp is licensed under the Apache-2.0 License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

rclcpp releases are not available. You will need to build from source code and install.

It has 140 lines of code, 0 functions and 4 files.

It has low code complexity. Code complexity directly impacts maintainability of the code.

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rclcpp Key Features

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rclcpp Examples and Code Snippets

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Community Discussions

Trending Discussions on rclcpp

Allocator in create publisher ROS2

Question regarding the use of std::bind in ROS2 tutorial

How to use lambda intead of std::bind in create_subscription method in ROS2

Visual Studio Code IncludePath Issue with ROS headers

Converting argv arguments to double

Load shared libraries from lib directory in CMake?

QUESTION

Allocator in create publisher ROS2

Asked 2021-Oct-18 at 13:31

Based on ROS2 documentation there is a third argument called an allocator that can be used when creatinga publisher. How can this allocator be used ? Does it allocate memory for the publisher ?

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ANSWER

Answered 2021-Oct-18 at 13:31

The custom allocator will be used for all heap allocations within the context of the publisher. This is the same as how you would use a custom allocator with an std::vector as seen here. For ROS2, take the following example of a custom allocator.

Source https://stackoverflow.com/questions/69616738

QUESTION

Question regarding the use of std::bind in ROS2 tutorial

Asked 2021-Oct-17 at 07:44

I am fairly new to C++ and I have a question regarding practices of std::bind. The following snippet is copied from this tutorial on the ROS2 website. The code creates a class where the timer_ field hosts a timer that is created using create_wall_timer(). creates_wall_timer() accepts a callback object of type CallbackT &&. In the constructor of the class, why does the author pass the result of std::bind(...) as the callback to create_timer() instead of a direct pointer or reference to the timer_callback method?

Apologies for the long questions. I am not really good at asking these questions. Hopefully, I didn't miss too much information that you need.

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ANSWER

Answered 2021-Oct-17 at 07:44

You can't pass a pointer to a member function in isolation (unless that function is declared static), because it needs an instance of the [right kind of] object to be called on.

std::bind binds a pointer to an object (this, in this example) to the member function pointer (&MinimalPublisher::timer_callback) so that when the time comes to call the function, there is an instance of the required / desired object available.

To look at this from another (simpler) angle, consider what happens if you write:

MinimalPublisher::timer_callback ();

If MinimalPublisher::timer_callback is not a static function the compiler will complain, because a non-static function can only be called through a [pointer to a] MinimalPublisher object, so something like:

my_minimal_publisher_object.MinimalPublisher::timer_callback ();

or:

my_minimal_publisher_object_pointer->MinimalPublisher::timer_callback ();

You might like to experiment with this in your favourite online compiler.

Incidentally, std::bind has been largely superseded by capturing lambdas these days. So, in order to capture the required object instance (and taking my original example over at Wandbox as a starting point), you might do:

Source https://stackoverflow.com/questions/69600164

QUESTION

How to use lambda intead of std::bind in create_subscription method in ROS2

Asked 2021-Oct-14 at 19:10

I am creating a small euclidean clustering node for the point cloud, utilizing PCL's implementation of the KD tree.

Currently, my subscriber definition looks like this,

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ANSWER

Answered 2021-Oct-14 at 19:10

You can replace

Source https://stackoverflow.com/questions/69575909

QUESTION

Visual Studio Code IncludePath Issue with ROS headers

Asked 2020-Dec-30 at 22:41

I'm getting squiggly lines under the statements of #include "rclcpp/rclcpp.hpp" from the ROS2 tutorial I'm going through and updating IncludePath in c_cpp_properties.json is not fixing the issue.

Here's what my c_cpp_properties file looks like:

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ANSWER

Answered 2020-Dec-30 at 22:41

Removing configurationProvider from c_cpp_properties.json did the trick and intellisense is working now.

Source https://stackoverflow.com/questions/65514366

QUESTION

Converting argv arguments to double

Asked 2020-Nov-17 at 19:45

I have created a .srv file in Ros. Which is structured as follows.

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ANSWER

Answered 2020-Nov-16 at 19:20

argv[0] is the program name; you probably meant argv[1] and argv[2].
Your log output is wrong; %ld means long int, not float or double. Try %f.

Source https://stackoverflow.com/questions/64864092

QUESTION

Load shared libraries from lib directory in CMake?

Asked 2020-Jan-17 at 16:24

I have downloaded a ROS2 demo from the examples repository.

Specifically, I have used minimal_subscriber and minimal_publisher.

I have ROS2 installed in /opt/ros2 and when I build these two examples with colcon build, it generates an install/ directory with lib/, shared/ and the other usual directory structure.

I can execute and run these demos perfectly fine with my current setup in my machine, but these executables link to libraries present in /opt/ros2, so when I want to execute them in another machine without ROS2 installed or I move my ROS2 installation in my machine, the executables cannot find the shared objects.

I've added a really simple script that adds all dependencies to install/lib when building but the executables don't seem to care, they aren't looking for shared libraries in the generated lib directory, they keep trying to search in /opt/ros2.

I believe this is something I should solve in CMake and it's not ROS2 specific, so, is there any way I can tell my generated executables to search in a diferent directory? (../lib or ./lib in my case)

...

ANSWER

Answered 2020-Jan-17 at 16:24

If you are building them yourself (assumed since you mention CMake), you can set the RPATH in CMake (docs here). Specifically set the CMAKE_INSTALL_RPATH something like:

Source https://stackoverflow.com/questions/59788067

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install rclcpp

You can download it from GitHub.

Support

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