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Dirk Thomas's profile - activity

2019-07-17 09:14:24 -0500 commented question Error while launching ros1_bridge

Please don't cross post your question: https://github.com/ros2/ros1_bridge/issues/205#issuecomment-512185529

2019-07-15 12:34:17 -0500 answered a question why roscd changes to install directory in colcon build?

roscd changes to a location based on where the package.xml file of a ROS package was found. After you built and install

2019-07-15 12:24:26 -0500 commented answer What is ROS2 daemon?

The daemon is being started automatically by the first command which tries to use the daemon. ros2 topic pub is not a g

2019-06-27 11:28:36 -0500 received badge  Nice Answer (source)
2019-06-12 10:29:15 -0500 answered a question Why need to parse package.xml to build/<pkg>/ament_cmake_code/package.cmake?

These variables are used in many places - just a few examples: version and deprecated flag: https://github.com/ament/a

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2019-06-10 12:25:43 -0500 commented question ROS2 listener stops working after some time

Cross posting your question in multiple locations (https://github.com/ros2/rclcpp/issues/755) is against the etiquette:

2019-06-10 12:25:21 -0500 commented question ROS2 listener stops working after some time

Cross posting your question in multiple locations (https://github.com/ros2/message_filters/issues/28) is against the eti

2019-06-10 11:24:46 -0500 commented question how can I implement efficient intra-process communication with message filters

Cross posting your question in multiple locations (https://github.com/ros2/message_filters/issues/28) is against the eti

2019-06-07 10:58:51 -0500 answered a question Is there a clang-format file for ROS 2?

The file is embedded in the ament_clang_format package which provides the linter API / CLI: https://github.com/ament/ame

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2019-06-07 10:06:56 -0500 commented answer ros distro "N" version not released?

ROS boss That is more of an internal name than an official title though ;-)

2019-06-07 09:58:16 -0500 commented answer ros distro "N" version not released?

I will delegate it to the ROS boss of Noetic. So it will get updated.

2019-06-07 09:13:33 -0500 commented answer ros distro "N" version not released?

Yes, that would be good.

2019-06-07 08:28:21 -0500 answered a question ros distro "N" version not released?

See https://discourse.ros.org/t/planning-future-ros-1-distribution-s/6538 for the plan for Noetic which is targeted for

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2019-06-06 10:52:34 -0500 commented answer How do you use Python3 and its libraries with ROS Melodic (researched)?

Rewriting the Python version of an already built and installed workspace sounds like asking for trouble. I would recomme

2019-06-06 00:11:22 -0500 commented answer ROS2 - Does ros1_bridge suppports Indigo

Please consider to accept the answer by clicking the checkmark left of the answer if it addressed your question. That wi

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2019-06-05 23:02:14 -0500 answered a question ROS2 - Does ros1_bridge suppports Indigo

Since Indigo targets Ubuntu Trusty and ROS 2 only targets Ubuntu Bionic (or Ubuntu Xenial for older releases) there is n

2019-06-04 14:13:48 -0500 commented question ROS2 Messages from IDL Files

If you want to use long double you can try the following two PRs which should make it work with FastRTPS: https://github

2019-06-04 13:40:42 -0500 commented question ROS2 Messages from IDL Files

Can you try to remove the long double field? The 128 bit floating point type doesn't exist anywhere in the ROS message f

2019-06-03 18:12:19 -0500 commented answer ROS2 Messages from IDL Files

You can convert existing .msg files using the following command: ros2 run rosidl_adapter msg2idl.py The same exists for

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2019-05-20 11:12:29 -0500 answered a question Publishing CV2 image message in ROS2 rclpy

As of the upcoming Dashing release the field in the Python messages will use numpy.ndarray to store image arrays of nume

2019-05-16 16:36:11 -0500 commented question referencing catkin variables when writing env_hooks

Can you print the content of both variables right before you call catkin_add_env_hooks(...)? message("CATKIN_PACKAGE_LIB

2019-05-16 10:51:05 -0500 answered a question ros2 publisher for other program

The ROS 2 publisher executable is only an example to demonstrate how to use API to publish messages. If you want to add

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2019-05-15 18:49:28 -0500 answered a question Redundancy in find_package(COMPONENTS) and catkin_package(CATKIN_DEPENDS)?

The find_package call in your snippet happens when this package (calling it pkg_foo) is being build. So these are build

2019-05-14 15:20:45 -0500 answered a question i got an error when interfacing ros 1 with ros2 through dynamic bridge i.e..," failed to create 2to1 bridge for topic '/rosout' with ros2type 'rcl_interfaces/Log' and Ros1 type 'rosgraph_msgs/Log' ".

This is a know issue, see https://github.com/ros2/ros1_bridge/issues/159

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2019-05-08 23:00:38 -0500 answered a question ROS2 colcon build on windows no error message shown when it failed

Unfortunately the Visual Studio compiler outputs error messages to stdout instead of stderr. By default colcon build hid

2019-05-08 19:31:01 -0500 answered a question ROS2 Services in Python

You can't define messages and services in a pure Python package. The reason is that for every interface file the types f

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2019-05-06 19:47:36 -0500 answered a question catkin_make require build of package without dependencies

Assuming your driver package has a manifest file catkin_make always builds all packages in a workspace. The dependencies

2019-05-02 11:42:19 -0500 answered a question how to create and build pakages in ROS2 CRYSTAL..is there any need to use AMENT tools in CRYSTAL..

The existing colcon tutorial https://index.ros.org/doc/ros2/Tutorials/Colcon-Tutorial/ should contain all the informatio

2019-04-30 13:57:05 -0500 commented answer Specifying CMake options for external CMake project

The difference of a colcon.pkg file is that it can be co-located with the package in source - rather than .meta / .mixin

2019-04-30 13:21:46 -0500 commented answer Specifying CMake options for external CMake project

There are two parts to catkin: the CMake functions provided (the build system part) and the scripts catkin_make(_isolate

2019-04-30 13:17:25 -0500 answered a question Specifying CMake options for external CMake project

If you build your workspace with colcon you can put a colcon.pkg file beside the manifest to specify custom cmake-args j

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2019-04-15 11:14:29 -0500 commented question ImportError: cannot import name 'pyparsing_common'

@theosakamg FYI

2019-04-12 15:03:22 -0500 commented answer Is it possible to self-compile ROS2 on an unsupported OS?

All of the mentioned packages are available through PyPI so you should be able to install them through pip (in case of R

2019-04-12 12:58:40 -0500 answered a question Is it possible to self-compile ROS2 on an unsupported OS?

It is absolutely possible. Users build ROS 1 / 2 all the time on various platforms which have no official binaries. You

2019-04-12 09:43:06 -0500 commented question could not source the setup.bash in ROS 2?

I would suggest updating your system and then trying it again.

2019-04-12 08:40:31 -0500 commented question could not source the setup.bash in ROS 2?

Can you post the output of colcon version-check.

2019-04-11 11:32:39 -0500 commented answer Copying files in devel folder - CMakeLists.txt

Instead of commenting on a 5 years old answered question please ask your own question with enough information.