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2022-01-25 12:23:55 -0500 | edited answer | roslisp issues: How do I locate and kill compilaition process that is stopping my s-xml from compiling? Hi, This happens when you kill your Emacs during compilation. Roslisp creates a little flag file to deal with dependenc |
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2022-01-20 15:23:18 -0500 | answered a question | roslisp issues: How do I locate and kill compilaition process that is stopping my s-xml from compiling? Hi, This happens when you kill your Emacs during compilation. Roslisp creates a little flag file to deal with dependenc |
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2021-05-14 04:54:40 -0500 | answered a question | CRAM iai_maps - cannot launch json_prolog and map_server (ROS melodic, kinetic) Hi, The tutorial that you're having problems with has a tag that it's compatible with CRAM v0.6.0 and the current defau |
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2020-05-23 15:15:16 -0500 | commented answer | Missing packages after installing rosdep based on python3-rosdep2 in Noetic I also destroyed my installation by getting python3-rosdep2. The reason is that this is the package that's suggested by |
2020-05-23 15:14:40 -0500 | commented answer | Missing packages after installing rosdep based on python3-rosdep2 in Noetic I also destroyed my installation by getting python3-rosdep2. The reason is that this is the package that's suggested by |
2019-04-23 04:47:54 -0500 | answered a question | Understanding visibility reasoning in CRAM Hi, The object centered view is generated for the cases when the object is completely not in camera view or only a part |
2019-03-06 08:30:37 -0500 | answered a question | Roslisp_Repl can't find package that is installed Hi, You need to first load the package before you can use it in a function call: (ros-load:load-system "roslisp_utilit |
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2017-09-18 14:09:49 -0500 | commented answer | Service call failed in json-prolog while querying an owl file in Cram We have a bunch of tutorials. Here is he one that showcases most complex behaviors It runs on the newest CRAM version (0 |
2017-09-13 10:20:37 -0500 | answered a question | Service call failed in json-prolog while querying an owl file in Cram Hi, This seems like an error on the KnowRob side. I execute it on my machine and it works fine. I'm using the master br |
2017-09-11 08:27:33 -0500 | commented answer | Problem with running json-prolog:prolog to query an owl file You need a json_prolog node service provider running. Such that when you do "rosservice list" it shows up in the list (a |
2017-09-11 07:55:32 -0500 | commented answer | Problem with running json-prolog:prolog to query an owl file Well, this looks fine. Your json prolog query still doesn't give the expected results? |
2017-09-11 07:55:10 -0500 | commented answer | Problem with running json-prolog:prolog to query an owl file Well, this looks fine. You json prolog query is still doesn't give the expected results? |
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2017-09-07 11:24:43 -0500 | edited answer | Problem with running json-prolog:prolog to query an owl file Hi, Well, as your warning message suggests, your ROS node is not running. Without a ROS node you cannot do any ROS comm |
2017-09-07 11:19:18 -0500 | answered a question | Problem with running json-prolog:prolog to query an owl file Hi, Well, as your warning message suggests, your ROS node is not running. Without a ROS node you cannot do any ROS comm |
2017-08-07 07:31:11 -0500 | answered a question | ROS Indigo - rviz maker turned white after update This issue has been solved by @William in the following pull request: https://github.com/ros-visualization/rviz/pull/113 |
2017-07-06 03:51:07 -0500 | commented question | ROS Indigo - rviz maker turned white after update I opened a new issue on RViz Github. Let's see what they say. Maybe this is intended behaviour. https://github.com/ros-v |
2017-07-06 03:38:26 -0500 | commented question | ROS Indigo - rviz maker turned white after update I get the same problem. The visualization_marker message has the correct color values but all markers appear white. |
2016-09-07 06:51:39 -0500 | answered a question | ROSLisp Tutorial Error in add-two-ints I committed a fix to the tutorial. Do a http://wiki.ros.org/roslisp/Tutorials... The text in those tutorials will help a lot to figure out what is going on in the tutorial code. |
2016-09-07 06:37:45 -0500 | commented question | ROSLisp Tutorial Error in add-two-ints Could you please point at the particular part of the roslisp tutorial from the ROS wiki page when this error happens? I suspect that you are not following the tutorial. The problem that you encountered is a minor issue, I doubt greatly that it is connected to an SBCL bug. |
2016-08-22 13:59:07 -0500 | commented answer | Config and test rosemacs Great to hear that |
2016-08-09 16:12:01 -0500 | commented question | Config and test rosemacs You followed the setup instructions for non-lisp developers of rosemacs. What you should try instead is the instructions for lisp developers. You can simply try to |
2016-08-05 10:38:45 -0500 | commented answer | Installing ROSLisp and Emacs Hmm, actually, I just googleid it myself and that didn't help. Anyway, try |
2016-08-05 10:36:27 -0500 | commented answer | Installing ROSLisp and Emacs The thing with the |
2016-08-05 08:38:28 -0500 | answered a question | Installing ROSLisp and Emacs Hey, the
To install ROSProlog follow the usual installation instructions of KnowRob, to install SWI Prolog compiler you can simply use HTH |
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2016-04-15 04:43:17 -0500 | answered a question | cram Object recognition Hi, roboearth perception packages are outdated and not supported anymore. If you need a perception framework try robosherlock ( robosherlock.org ) |
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2016-03-07 14:13:57 -0500 | answered a question | CRAM MoveIt Tutorial problem I just tried out the tutorial and the call succeeded for me. Which version of The link to the repository in the tutorial was a bit outdated, so I updated it now (and also cleaned up the code in the repo a bit). If you're using |
2016-01-20 12:47:29 -0500 | commented answer | ROSLisp/ROSProlog/Knowrob-- Need CRAM for OWL? JSON? @toddcpierce, if you find this answer satisfactory, please mark it so (to keep the number of unanswered questions on answers.ros.org low). |
2016-01-20 12:43:32 -0500 | answered a question | ROSLisp/ROSProlog/Knowrob-- Need CRAM for OWL? JSON?
SBCL is a system dependency of ROS, so you get it when you install ROS. SWI Prolog is installed when you
roslisp comes with ROS, rosprolog and rosprolog side of json_prolog come with KnowRob.
No.
json_prolog provides a JSON interface for rosprolog that works over ROS services. Once you You can query these services using plain roslisp.
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2016-01-07 12:25:02 -0500 | answered a question | roslisp/rosprolog General Questions Hi Todd, In CRAM (a Common Lisp robot programming framework) we are using
It is based on the ROS service mechanism, for your case of querying rosprolog from Lisp, json-prolog would help you register a rosprolog ROS service that can answer queries over ROS and send the results back to Lisp. The query and the result are encoded in JSON format. Nothing fancy.
Not sure if I understood your question correctly but if you're asking if you can run a ROS service server on one machine and query it from another machine, yes, sure, just make sure you set up your
On the Lisp side we have a You would then call the service from Lisp like this: and the variables Unfortunately, I cannot point you to any self-contained documentation about ` |
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2015-09-18 10:01:56 -0500 | asked a question | How do you document your ROS packages? There are 100s of places where one can put documentation info about their ROS package code: So, to those few out there that actually have experience documenting their (preferably open-source) code, any hints on how you organize this for huge projects and, if the documentation is not only in one place, how do you maintain it to reflect the ongoing changes in the code? |
2015-06-15 10:01:35 -0500 | commented answer | ros-load:load-system doesn't load the package Yes, you probably killed the building process before it could remove the lock which is stored in the |
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2015-06-15 09:59:21 -0500 | commented answer | CRAM on an arm processor? The |
2015-06-15 09:56:36 -0500 | commented answer | CRAM on an arm processor? "I didn't try building knowrob." - I don't see any reason for building a knowledge processing system on a microcontroller that runs ROS.
"multi threading doesn't work for ARM" - Have you built SBCL with |
2015-06-13 06:53:33 -0500 | answered a question | CRAM on an arm processor? The CRAM team hasn't tried it yet but we do have such plans. Check again later. If you'll be tryinng things out on your own any input is most welcome. |
2015-06-13 06:41:54 -0500 | answered a question | cram-intermediate-tutorial can't find the package The tutorial code is on a different branch that hasn't been merged in yet. This tutorial is very new and is work in progress. The current pull request is here but it hasn't been reviewed yet: https://github.com/cram-code/cram_tut... |