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2021-05-19 16:26:46 -0500 | marked best answer | Doubt in ROS-1 communication design Hi, While going through ROS-1 wiki pages, at several places I read that the message between a publisher and subscriber does not route via Master. Rather the message travels directly from Publisher to Subscriber. But in the following Wikipedia page (https://en.wikipedia.org/wiki/Publish...), under heading TOPOLOGIES, it is mentioned that in a broker-based pub-sub system, the messages are routed via broker (i.e. master). So, I request someone who is aware of the latest ROS-1 communication design to help in clarifying this doubt please. Thanks. |
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2021-02-13 10:57:09 -0500 | marked best answer | Trouble installing ROS Noetic Ninjemys on Ubuntu 20.04 Getting following error, please help:-- |
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2021-01-11 23:27:46 -0500 | marked best answer | Regarding transport layer protocols in ROS2 Foxy Fitzroy Hi, In the Concepts page of ROS2 ( https://index.ros.org/doc/ros2/Concep... ) it is said that "Note however that even the reliable policy in ROS 2 is implemented using UDP, which allows for multicasting if appropriate." So, is there no TCP transport protocol in ROS2 Foxy ? My another comprehensive question is: What all transport layer protocols are available in ROS2 Foxy Fitzroy ? (as for example in ROS 1 Noetic, TCP and UDP are supported) |
2021-01-11 23:26:53 -0500 | edited question | Does RMW implementations explicitly deal beyond application layer code ? Does RMW implementations explicitly deal beyond application layer code ? Hi, As the middleware implementations are abst |
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2021-01-11 12:22:24 -0500 | commented answer | Where is the source code for different middleware implementations in ROS2 Foxy @tfoote: Hey hi, sorry to say that you have a misunderstanding here. I never asked about "end-to-end encryption" on this |
2021-01-11 12:12:08 -0500 | commented answer | Where is the source code for different middleware implementations in ROS2 Foxy @gvdhoorn: The list in https://index.ros.org/doc/ros2/Concepts/DDS-and-ROS-middleware-implementations/#supported-rmw-imp |
2021-01-11 12:05:25 -0500 | commented answer | Where is the source code for different middleware implementations in ROS2 Foxy This starts to go in the same direction as #q369222: please don't ask follow-up questions in comments under questions wi |
2021-01-11 12:00:16 -0500 | commented answer | Where is the source code for different middleware implementations in ROS2 Foxy @gvdhoorn: I wanted to know the end-to-end capabilities of ROS 2. How good it is! Is it the best! And so on. Also, genui |
2021-01-11 11:58:47 -0500 | commented answer | Where is the source code for different middleware implementations in ROS2 Foxy @gvdhoorn: I wanted to know the end-to-end capabilities of ROS 2. How good it is! Is it the best! And so on. |
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2021-01-11 11:31:19 -0500 | commented question | Foxy: Regarding changing QoS policies in pre-provided QoS profiles in ROS2 @gvdhoorn : Actually, by developers, I meant the maintainers of ROS2 code, and not the ones who would code for building |
2021-01-11 11:22:12 -0500 | commented answer | Where is the source code for different middleware implementations in ROS2 Foxy Thanks @gvdhoorn for your so much help with your good responses. Two further doubts:- a) As per https://www.ros.org/r |
2021-01-11 11:21:55 -0500 | commented answer | Where is the source code for different middleware implementations in ROS2 Foxy Thanks @gvdhoorn for your so much help with your good responses. Two further doubts:- a) As per https://www.ros.org/rep |
2021-01-11 11:08:50 -0500 | asked a question | Does RMW implementations explicitly deal beyond application layer code ? Does RMW implementations explicitly deal beyond application layer code ? Hi, As the middleware implementations are abst |
2021-01-11 10:26:50 -0500 | commented answer | Regarding transport layer protocols in ROS2 Foxy Fitzroy @gvdhoorn: Thanks for your response but I have few doubts in your response and I request you humbly to clarify them plea |
2021-01-11 10:03:08 -0500 | commented question | Where is the source code for different middleware implementations in ROS2 Foxy @gvdhoorn: Sorry if "standard" created any confusion. I simply meant if I can see the code of different middleware imple |
2021-01-10 23:35:31 -0500 | asked a question | Regarding transport layer protocols in ROS2 Foxy Fitzroy Regarding transport layer protocols in ROS2 Foxy Fitzroy Hi, In the Concepts page of ROS2 ( https://index.ros.org/doc/r |
2021-01-10 23:20:19 -0500 | asked a question | Foxy: Regarding changing QoS policies in pre-provided QoS profiles in ROS2 Foxy: Regarding changing QoS policies in pre-provided QoS profiles in ROS2 For ROS2 Foxy Fitzroy: In the following ROS2 |
2021-01-10 23:08:27 -0500 | asked a question | Where is the source code for different middleware implementations in ROS2 Foxy Standard way to see code for different middleware implementation in ROS2 Foxy Would we be able to see the standard code |
2021-01-10 22:59:37 -0500 | marked best answer | Confusion in ROS2 default middleware I have noted that FastRTPS is the default middleware in ROS2 Foxy. But again, there are 2 version of FastRTPS too: a) FastRTPS dynamic (rmw_fastrtps_dynamic_cpp) and b) Plain FastRTPS (rmw_fastrtps_cpp). So which one exactly is the default middleware in ROS 2 Foxy Fitzroy ? |
2021-01-10 22:59:32 -0500 | commented answer | Confusion in ROS2 default middleware Thank you @jacobperron |
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2021-01-09 11:41:36 -0500 | asked a question | Confusion in ROS2 default middleware Confusion in ROS2 default middleware I have noted that FastRTPS is the default middleware in ROS2 Foxy. But again, ther |
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2020-12-29 03:57:27 -0500 | marked best answer | Doubt in ROS-2 design document about topics In the ROS-2 design page "https://design.ros2.org/articles/ros_...", it is written by @Dirk Thomas as
My question is: How can we say that the DDS topics are not exposed through the ROS API, when using "ros2 topic list", we do access the topics ? Does these topics do not belong to DDS implementation ? What was the actual concept that was meant to be conveyed by the quoted text above ? I request to help me in clearing this doubt. |
2020-12-29 03:57:02 -0500 | commented answer | Doubt in ROS-2 design document about topics Thanks @tfoote for clearing my doubt. |
2020-12-29 03:56:17 -0500 | commented answer | Doubt in ROS-2 design document about topics Thanks @jacobperron for your answer, it is helpful. |
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2020-12-28 10:19:25 -0500 | edited question | Doubt in ROS-2 design document about topics Doubt in ROS-2 design document about topics In the ROS-2 design page "https://design.ros2.org/articles/ros_middleware_in |