tag:old.nabble.com,2006:forum-4302Nabble - Player/Stage/Gazebo2009-12-07T10:29:13ZThe Player/Stage/Gazebo Project: Player is a networked robot/sensor device interface; Stage and Gazebo provide 2D and 3D simulated worlds, respectively. The software aims for POSIX compliance and runs on most UNIX-like OS's (including Linux and OS X) Player/Stage/Gazebo home is <a href="http://sourceforge.net/projects/playerstage/" target="_top" rel="nofollow">here</a>.tag:old.nabble.com,2006:post-26681781wireless communication in player.... help needed.2009-12-07T10:29:13Z2009-12-07T10:29:13ZPrasad.mhHello all,
<br><br> I would like to establish a wireless communication between
<br>a client (robot with a laptop) and a remote desktop. I would like to
<br>use this setup such that the data sent by the client is processed on
<br>the desktop. I am using player drivers to control the robot and the on
<br>board sensors. So i would like to know if there is any possibility to
<br>send the sensor data from the robot+laptop setup to the desktop using
<br>player supported interfaces. If anyone has a prior experience in doing
<br>this, i would really appreciate your inputs.
<br><br>My laptop is running Fedora core -7 and player 3.0.0.
<br><br>Thanks in advance,
<br>Guru.
<br><br>--
<br>-Prasad
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<br><a href="https://lists.sourceforge.net/lists/listinfo/playerstage-users" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/playerstage-users</a><br><p>From forum: <a href="http://old.nabble.com/playerstage-users-f4306.html" embed="fixTarget[4306]" target="_top" >playerstage-users</a></p>tag:old.nabble.com,2006:post-26679204[SPAM] http://playerstage.sourceforge.net - Contact needed2009-12-07T05:40:44Z2009-12-07T05:40:44ZMarc Schneider.net<html><head>
<meta content="text/html;charset=UTF-8" http-equiv="Content-Type">
<title></title></head><body><p><font face="Verdana" size="2">I am Dr. Marc Schneider and I work for Multilingual Search Engine Optimization Inc. in Washington DC ( Tel: 1 202-</font><font face="Verdana" size="2">250-3645</font><font face="Verdana" size="2">) - I would like to speak with the person in charge of your international clientele. Who is my contact? Who should I speak to??<br />
<br />
In fact, after visiting http://playerstage.sourceforge.net , I have noticed that your website cannot be found on foreign search engines (I tested it on Hispanic search engines, German search engines, Asian search engines, etc.) Our company is specialized in multilingual search engine promotions in 28 languages . From the Japanese Google to the German Yahoo, from the AOL in Spanish to the MSN in Chinese, we can show you how to develop a true international online presence by promoting your website on foreign search engines.<br />
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Regards, <br />
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Marc Schneider, Ph.D. <br />
<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26679204&i=0" target="_top" rel="nofollow">Marcs@...</a><br />
<br />
Multilingual Search Engine Optimization Inc.<br />
1250 Connecticut Ave N.W. Suite 200<br />
Washington, DC 20036 USA<br />
TEL: +1 (202) 250-3645 - FAX: 1 (202)-318-2453<br />
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Multilingual Search Engine Promotion Services since 1999.</font></p><br /><br /> </body></html>
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<br><a href="https://lists.sourceforge.net/lists/listinfo/playerstage-users" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/playerstage-users</a><br><p>From forum: <a href="http://old.nabble.com/playerstage-users-f4306.html" embed="fixTarget[4306]" target="_top" >playerstage-users</a></p>tag:old.nabble.com,2006:post-26676530Stage Build problems2009-12-07T04:22:56Z2009-12-07T04:22:56ZRich AmaralHello,
<br><br>I'm having a build problem (linking) Stage 3.2.2. I'm trying to
<br>statically link FLTK (set with ccmake). I'm using gcc 4.2.4 on Ubuntu
<br>4.2.4-1ubuntu4, Linux 2.6.24-16-rtai #1 Tue Sep 30 22:54:33 EEST 2008
<br>i686 GNU/Linux. Here's the last part of the link output:
<br><br>[ 59%] Building CXX object libstage/CMakeFiles/stage.dir/ancestor.o
<br>Linking CXX shared library libstage.so
<br>/usr/bin/ld: cannot find -ljpeg
<br>collect2: ld returned 1 exit status
<br>make[2]: *** [libstage/libstage.so.3.2.2] Error 1
<br>make[1]: *** [libstage/CMakeFiles/stage.dir/all] Error 2
<br>make: *** [all] Error 2
<br><br>I've been trying to build Stage for awhile without any luck. I've read
<br>the FAQ list and mailing list, but can't seem to find a solution to
<br>this problem. I'd really appreciate some help, thanks!!
<br><br>-Rich
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<br><a href="https://lists.sourceforge.net/lists/listinfo/playerstage-users" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/playerstage-users</a><br><p>From forum: <a href="http://old.nabble.com/playerstage-users-f4306.html" embed="fixTarget[4306]" target="_top" >playerstage-users</a></p>tag:old.nabble.com,2006:post-26674438Re: Using a video as a Camera Source In Player2009-12-07T01:03:51Z2009-12-07T01:03:51ZPaul OsmialowskiHi John,
<br>Nice to hear it works. Why it is not a part of mainstream distribution?:
<br>Sometimes things gets missing. Also AFAIR references to OpenCV in this
<br>driver code looked suspicious so this could be the reason for Player
<br>developers doubts. Nevertheless, this is kinda useful driver (gstreamer
<br>itself has many interesting filters for image processing) so I guess it
<br>will be added to Player trunk in the future.
<br><br>Paul
<br><br>On Sun, 6 Dec 2009, John Hoare wrote:
<br><div class='shrinkable-quote'><br>> Thanks Paul this is what I was wanting. Hopefully I can use this.
<br>>
<br>> Is there any reason why this driver wasn't added to the player source?
<br>>
<br>> -John
<br>>
<br>> Paul Osmialowski wrote:
<br>>> Some time ago Piotr Trojanek released gstreamer plugin for Player, it
<br>>> might be helpful for you. Gstreamer infrastructure is capable to take
<br>>> recorded video file as a source for streamed data. I never tried if it
<br>>> works as I needed something oposite (use gstreamer to record data from
<br>>> Player's camera interface into mpeg file) and it worked fine.
<br>>> Paul
<br>>>
<br>>> On Fri, 4 Dec 2009, John Hoare wrote:
<br>>>
<br>>>
<br>>>> Hi,
<br>>>>
<br>>>> Is there any way to take a recorded video, and use it as a source to
<br>>>> emulate a camera interface?
<br>>>> We currently have something in-lab that uses a series of images, and
<br>>>> plays back using the readlog driver, but I was hoping for something that
<br>>>> would take in an avi file or something.
<br>>>>
<br>>>> Thanks,
<br>>>> John
<br>>>>
<br>>>> ------------------------------------------------------------------------------
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<br>>>> a free event focused on virtualization and cloud computing.
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<br>>>>
<br>>>
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<br>>
<br>>
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<br><a href="https://lists.sourceforge.net/lists/listinfo/playerstage-users" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/playerstage-users</a><br><p>From forum: <a href="http://old.nabble.com/playerstage-users-f4306.html" embed="fixTarget[4306]" target="_top" >playerstage-users</a></p>tag:old.nabble.com,2006:post-26670180Re: Using a video as a Camera Source In Player2009-12-06T15:06:15Z2009-12-06T15:06:15ZJohn HoareThanks Paul this is what I was wanting. Hopefully I can use this.
<br><br>Is there any reason why this driver wasn't added to the player source?
<br><br>-John
<br><br>Paul Osmialowski wrote:
<div class='shrinkable-quote'><br>> Some time ago Piotr Trojanek released gstreamer plugin for Player, it
<br>> might be helpful for you. Gstreamer infrastructure is capable to take
<br>> recorded video file as a source for streamed data. I never tried if it
<br>> works as I needed something oposite (use gstreamer to record data from
<br>> Player's camera interface into mpeg file) and it worked fine.
<br>> Paul
<br>>
<br>> On Fri, 4 Dec 2009, John Hoare wrote:
<br>>
<br>>
<br>>> Hi,
<br>>>
<br>>> Is there any way to take a recorded video, and use it as a source to
<br>>> emulate a camera interface?
<br>>> We currently have something in-lab that uses a series of images, and
<br>>> plays back using the readlog driver, but I was hoping for something that
<br>>> would take in an avi file or something.
<br>>>
<br>>> Thanks,
<br>>> John
<br>>>
<br>>> ------------------------------------------------------------------------------
<br>>> Join us December 9, 2009 for the Red Hat Virtual Experience,
<br>>> a free event focused on virtualization and cloud computing.
<br>>> Attend in-depth sessions from your desk. Your couch. Anywhere.
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<br>>>
<br>>
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<br><a href="https://lists.sourceforge.net/lists/listinfo/playerstage-users" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/playerstage-users</a><br><p>From forum: <a href="http://old.nabble.com/playerstage-users-f4306.html" embed="fixTarget[4306]" target="_top" >playerstage-users</a></p>tag:old.nabble.com,2006:post-26666852[SPAM] r. Our forem2009-12-06T09:07:28Z2009-12-06T09:07:28ZHusseini And it's hard, hard times. And there's the old bachelor, all hated with
<br>scorn, He's like an old garment all tattered and torn, The girls and the
<br>widows all toss him a sigh, And think it quite right, and so do I,-- And
<br>it's hard, hard times. And there's the young widow, coquettish and shy,
<br>With a smile on her lips and a tear in her eye, But when she gets
<br>married she'll cut quite a dash, She'll give him the reins and she'll
<br>handle the cash,-- And it's hard, hard times. And there's the young lady
<br>I like to have missed, And I believe to my soul she'd like to be kissed;
<br>She'll tell you she loves you with all pretence And ask you to call
<br>again some time hence,-- And it's hard, hard times. And there's the
<br>young man, the worst of the whole. Oh, he will tell you with all of his
<br>soul, He'll tell you he loves you and for you will die, And when he's
<br>away he will swear it's a lie,-- And it's hard, hard times. COLE YOUNGER
<br>Am one of a band of highwaymen, Cole Younger is my name; My crimes and
<br>depredations have brought my friends to shame; The robbing of the
<br>Northfield Bank, the same I can't deny, For now I am a prisoner, in the
<br>Stillwater jail I lie. 'Tis of a bold, high robbery, a story to you I'll
<br>tell, Of a California miner who unto us befell; We robbed him of his
<br>money and bid him go his way, For which I will be sorry until my dying
<br>day. And then we started homeward, when brother Bob did say: "Now, Cole,
<br>we will buy fast horses and on them ride away. We will ride to avenge
<br>our father's death and try to win the prize; We will fi
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<br><a href="https://lists.sourceforge.net/lists/listinfo/playerstage-users" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/playerstage-users</a><br><div class="small"><br/><img src="http://old.nabble.com/images/icon_attachment.gif" > <strong>sexists.jpg</strong> (13K) <a href="http://old.nabble.com/attachment/26666852/0/sexists.jpg" target="_top">Download Attachment</a></div><p>From forum: <a href="http://old.nabble.com/playerstage-users-f4306.html" embed="fixTarget[4306]" target="_top" >playerstage-users</a></p>tag:old.nabble.com,2006:post-26662918Re: About Adding A Communication Modle In Stage2009-12-05T23:51:53Z2009-12-05T23:51:53Zchao jiangHello everyone:<br> now ,i find a problem about the wifi
model in stage ,i can't user wifi proxy about player .i want to use
wifi to communicate with each other,such as tell others what to do and
also tell each other their own information in the communication area.i am not sure these functions can reallize ,can you give me some advice?
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<br><a href="https://lists.sourceforge.net/lists/listinfo/playerstage-users" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/playerstage-users</a><br><p>From forum: <a href="http://old.nabble.com/playerstage-users-f4306.html" embed="fixTarget[4306]" target="_top" >playerstage-users</a></p>tag:old.nabble.com,2006:post-26662098Re: error: libplayerc/playerc.h: No such file or directory2009-12-05T20:05:35Z2009-12-05T20:05:35ZGeoff BiggsCan you post the full output? It's hard to see what it can't find from
<br>just the error message.
<br><br>Geoff
<br><br>Allen S wrote:
<div class='shrinkable-quote'><br>> Thanks Geoff.
<br>>
<br>> I tried following README and configuring the Player but ran into another
<br>> error.
<br>>
<br>> *****ERROR MESSAGE*****
<br>> CMake Error at /opt/local/share/cmake-2.6/Modules/FindPkgConfig.cmake:270
<br>> (message):
<br>> A required package was not found
<br>> Call Stack (most recent call first):
<br>> /opt/local/share/cmake-2.6/Modules/FindPkgConfig.cmake:322
<br>> (_pkg_check_modules_internal)
<br>> /usr/local/share/cmake/Modules/UsePlayerC.cmake:20 (pkg_check_modules)
<br>> CMakeLists.txt:6 (INCLUDE)
<br>> ***** END *****
<br>>
<br>> Any advise?
<br>>
<br>> Thanks!
<br>>
<br>>
<br>> Geoff Biggs wrote:
<br>>> The error is actually caused by the compiler being unable to find the
<br>>> include file. It does't even get to the point of looking for libraries.
<br>>>
<br>>> Since you're using Player 3, I recommend you use the CMake modules that
<br>>> are installed with Player. Look in the installed examples directories.
<br>>> Each of them has a file called CMakeLists.txt which shows how to use the
<br>>> modules. The README file in each directory explains how to compile using
<br>>> them.
<br>>>
<br>>> Geoff
<br>>>
<br>>> Allen S wrote:
<br>>>> I'm a new user of PlayerStage, I successfully installed Player 3.0.0 and
<br>>>> Stage 3.2.2 on Snow Leopard (10.6).
<br>>>>
<br>>>> I'm able to execute the examples in Player & Stage but unable to compile
<br>>>> a
<br>>>> program of my own. I get the following error. I know this is due to
<br>>>> library not being linked but I cannot figure out how to do it. Please
<br>>>> help
<br>>>>
<br>>>> test.c:3:32: error: libplayerc/playerc.h: No such file or directory
<br>>>> test.c: In function ‘main’:
<br>>>> test.c:9: error: ‘playerc_client_t’ undeclared (first use in this
<br>>>> function)
<br>>>> test.c:9: error: (Each undeclared identifier is reported only once
<br>>>> test.c:9: error: for each function it appears in.)
<br>>>> test.c:9: error: ‘client’ undeclared (first use in this function)
<br>>>> test.c:10: error: ‘playerc_position2d_t’ undeclared (first use in this
<br>>>> function)
<br>>>> test.c:10: error: ‘position2d’ undeclared (first use in this function)
<br>>>> test.c:19: error: ‘PLAYER_OPEN_MODE’ undeclared (first use in this
<br>>>> function)
<br>>>> test.c:21: warning: format ‘%s’ expects type ‘char *’, but argument 3 has
<br>>>> type ‘int’
<br>>>>
<br>>>>
<br>>>> I have tried export path..., export cpath..., export
<br>>>> DYLIB_LIBRARY_PATH...,
<br>>>> etc and nothing has worked so far. Any guidance is greatly appreciated.
<br>>>>
<br>>>> Thanks!
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<br>>
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<br><a href="https://lists.sourceforge.net/lists/listinfo/playerstage-users" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/playerstage-users</a><br><p>From forum: <a href="http://old.nabble.com/playerstage-users-f4306.html" embed="fixTarget[4306]" target="_top" >playerstage-users</a></p>tag:old.nabble.com,2006:post-26661553[SPAM] t of life is that they2009-12-05T18:10:19Z2009-12-05T18:10:19ZSon-14 companion of Zeus himself, was chained to a rock on Mount Caucasus by
<br>the vindictive deity. There, on a dizzy height, his body thrust against
<br>the sun-baked rock, Prometheus had to endure the torment of having a
<br>foul-beaked vulture tear out his liver, as though he were a piece of
<br>carrion lying on the mountain side. All day, while the sun mercilessly
<br>smote him and the blue sky turned from red to black before his
<br>pain-racked eyes, the torture went on. Each night, when the filthy bird
<br>of prey that worked the will of the gods spread its dark wings and flew
<br>back to its eyrie, the Titan endured the cruel mercy of having his body
<br>grow whole once more. But with daybreak there came again the silent
<br>shadow, the smell of the unclean thing, and again with fierce beak and
<br>talons the vulture greedily began its work. Thirty thousand years was
<br>the time of his sentence, and yet Prometheus knew that at any moment he
<br>could have brought his torment to an end. A secret was his--a mighty
<br>secret, the revelation of which would have brought him the mercy of Zeus
<br>and have reinstated him in the favour of the all-powerful god. Yet did
<br>he prefer to endure his agonies rather than to free himself by bowing to
<br>t
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<br><a href="https://lists.sourceforge.net/lists/listinfo/playerstage-users" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/playerstage-users</a><br><div class="small"><br/><img src="http://old.nabble.com/images/icon_attachment.gif" > <strong>pluvial.jpg</strong> (14K) <a href="http://old.nabble.com/attachment/26661553/0/pluvial.jpg" target="_top">Download Attachment</a></div><p>From forum: <a href="http://old.nabble.com/playerstage-users-f4306.html" embed="fixTarget[4306]" target="_top" >playerstage-users</a></p>tag:old.nabble.com,2006:post-26658979Re: error: libplayerc/playerc.h: No such file or directory2009-12-05T13:32:40Z2009-12-05T13:32:40ZAllen SThanks Geoff.
<br><br>I tried following README and configuring the Player but ran into another error.
<br><br>*****ERROR MESSAGE*****
<br> CMake Error at /opt/local/share/cmake-2.6/Modules/FindPkgConfig.cmake:270
<br> (message):
<br> A required package was not found
<br> Call Stack (most recent call first):
<br> /opt/local/share/cmake-2.6/Modules/FindPkgConfig.cmake:322
<br> (_pkg_check_modules_internal)
<br> /usr/local/share/cmake/Modules/UsePlayerC.cmake:20 (pkg_check_modules)
<br> CMakeLists.txt:6 (INCLUDE)
<br>***** END *****
<br><br>Any advise?
<br><br>Thanks!
<br><br><blockquote class="quote light-black dark-border-color"><div class="quote light-border-color">
<div class="quote-author" style="font-weight: bold;">Geoff Biggs wrote:</div>
<div class="quote-message shrinkable-quote">The error is actually caused by the compiler being unable to find the
<br>include file. It does't even get to the point of looking for libraries.
<br><br>Since you're using Player 3, I recommend you use the CMake modules that
<br>are installed with Player. Look in the installed examples directories.
<br>Each of them has a file called CMakeLists.txt which shows how to use the
<br>modules. The README file in each directory explains how to compile using
<br>them.
<br><br>Geoff
<br><br>Allen S wrote:
<br>> I'm a new user of PlayerStage, I successfully installed Player 3.0.0 and
<br>> Stage 3.2.2 on Snow Leopard (10.6).
<br>>
<br>> I'm able to execute the examples in Player & Stage but unable to compile a
<br>> program of my own. I get the following error. I know this is due to
<br>> library not being linked but I cannot figure out how to do it. Please help
<br>>
<br>> test.c:3:32: error: libplayerc/playerc.h: No such file or directory
<br>> test.c: In function ‘main’:
<br>> test.c:9: error: ‘playerc_client_t’ undeclared (first use in this function)
<br>> test.c:9: error: (Each undeclared identifier is reported only once
<br>> test.c:9: error: for each function it appears in.)
<br>> test.c:9: error: ‘client’ undeclared (first use in this function)
<br>> test.c:10: error: ‘playerc_position2d_t’ undeclared (first use in this
<br>> function)
<br>> test.c:10: error: ‘position2d’ undeclared (first use in this function)
<br>> test.c:19: error: ‘PLAYER_OPEN_MODE’ undeclared (first use in this function)
<br>> test.c:21: warning: format ‘%s’ expects type ‘char *’, but argument 3 has
<br>> type ‘int’
<br>>
<br>>
<br>> I have tried export path..., export cpath..., export DYLIB_LIBRARY_PATH...,
<br>> etc and nothing has worked so far. Any guidance is greatly appreciated.
<br>>
<br>> Thanks!
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</div></blockquote>
<p>From forum: <a href="http://old.nabble.com/playerstage-users-f4306.html" embed="fixTarget[4306]" target="_top" >playerstage-users</a></p>tag:old.nabble.com,2006:post-26655347Re: Using a video as a Camera Source In Player2009-12-05T04:44:42Z2009-12-05T04:44:42ZPaul OsmialowskiSome time ago Piotr Trojanek released gstreamer plugin for Player, it
<br>might be helpful for you. Gstreamer infrastructure is capable to take
<br>recorded video file as a source for streamed data. I never tried if it
<br>works as I needed something oposite (use gstreamer to record data from
<br>Player's camera interface into mpeg file) and it worked fine.
<br>Paul
<br><br>On Fri, 4 Dec 2009, John Hoare wrote:
<br><div class='shrinkable-quote'><br>> Hi,
<br>>
<br>> Is there any way to take a recorded video, and use it as a source to
<br>> emulate a camera interface?
<br>> We currently have something in-lab that uses a series of images, and
<br>> plays back using the readlog driver, but I was hoping for something that
<br>> would take in an avi file or something.
<br>>
<br>> Thanks,
<br>> John
<br>>
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<br><a href="https://lists.sourceforge.net/lists/listinfo/playerstage-users" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/playerstage-users</a><br><p>From forum: <a href="http://old.nabble.com/playerstage-users-f4306.html" embed="fixTarget[4306]" target="_top" >playerstage-users</a></p>tag:old.nabble.com,2006:post-26667637[ playerstage-Bugs-2909192 ] in function: void AudioController::PutAudioData()2009-12-04T22:15:26Z2009-12-04T22:15:26ZSourceForge.netBugs item #2909192, was opened at 2009-12-05 06:15
<br>Message generated for change (Tracker Item Submitted) made by nobody
<br>You can respond by visiting:
<br><a href="https://sourceforge.net/tracker/?func=detail&atid=433164&aid=2909192&group_id=42445" target="_top" rel="nofollow">https://sourceforge.net/tracker/?func=detail&atid=433164&aid=2909192&group_id=42445</a><br><br>Please note that this message will contain a full copy of the comment thread,
<br>including the initial issue submission, for this request,
<br>not just the latest update.
<br>Category: gazebo
<br>Group: trunk
<br>Status: Open
<br>Resolution: None
<br>Priority: 5
<br>Private: No
<br>Submitted By: Nobody/Anonymous (nobody)
<br>Assigned to: Nathan Koenig (natepak)
<br>Summary: in function: void AudioController::PutAudioData()
<br><br>Initial Comment:
<br>in gazebo/server/controllers/audio/Audio.cc:160
<br><br> this->audioIface->data->head.time = Simulator::Instance()->GetSimTime();
<br><br>should be:
<br><br> this->audioIface->data->head.time = Simulator::Instance()->GetSimTime().Double();
<br><br>Otherwise, it leads to a "cannot convert time" error. Other occurrences of GetSimTime() convert Gazebo::Time to a double.
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<br><a href="https://lists.sourceforge.net/lists/listinfo/playerstage-developers" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/playerstage-developers</a><br><p>From forum: <a href="http://old.nabble.com/playerstage-developers-f4304.html" embed="fixTarget[4304]" target="_top" >playerstage-developers</a></p>tag:old.nabble.com,2006:post-26650380Using a video as a Camera Source In Player2009-12-04T14:37:50Z2009-12-04T14:37:50ZJohn HoareHi,
<br><br>Is there any way to take a recorded video, and use it as a source to
<br>emulate a camera interface?
<br>We currently have something in-lab that uses a series of images, and
<br>plays back using the readlog driver, but I was hoping for something that
<br>would take in an avi file or something.
<br><br>Thanks,
<br>John
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<br><a href="https://lists.sourceforge.net/lists/listinfo/playerstage-users" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/playerstage-users</a><br><p>From forum: <a href="http://old.nabble.com/playerstage-users-f4306.html" embed="fixTarget[4306]" target="_top" >playerstage-users</a></p>tag:old.nabble.com,2006:post-26647038Re: Formatting suggestion2009-12-04T10:31:12Z2009-12-04T10:31:12ZRichard Vaughan-2Jeff,
<br><br>Thanks for the useful tips. I will tackle this when I have a little time.
<br><br>Richard/
<br><br>On Sun, Nov 29, 2009 at 2:26 PM, Jeff Donner <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26647038&i=0" target="_top" rel="nofollow">jeffrey.donner@...</a>> wrote:
<div class='shrinkable-quote'><br>> Hi,
<br>>
<br>> I'd like to suggest that someone run a formatter on the libstage
<br>> code. It has the classic problem of using tabs, where if a reader's
<br>> tab settings don't match the author's, the code indentation jumps
<br>> around. Also, some authors might have used unusual tab stops when
<br>> writing, (eg 4 places instead of 8), so that there /is/ no single tab
<br>> setting which will make the code consistent.
<br>>
<br>> This can be fixed pretty painlessly with a formatter like 'astyle'.
<br>> The example below uses the latest version 1.23 (not the version
<br>> included with Ubuntu eg).
<br>>
<br>> <a href="http://sourceforge.net/projects/astyle/files" target="_top" rel="nofollow">http://sourceforge.net/projects/astyle/files</a><br>>
<br>> I'm not sure the parameters will work with the pre-installed Ubuntu version.
<br>>
<br>> So as not to impose any particular style on the code the command below
<br>> does its best to be neutral except wrt indenting, at 4 spaces (change
<br>> to taste).
<br>>
<br>> from the 'trunk' directory run:
<br>>
<br>> find . -name '*.cc' -o -name '*.hh' | xargs astyle
<br>> --keep-one-line-blocks --keep-one-line-statements --indent=spaces=4
<br>> --indent-namespaces
<br>>
<br>> and it will indent all the files in place. It will make /almost/ pure
<br>> whitespace changes only (ie low risk), which you can confirm with
<br>> this:
<br>>
<br>> svn diff --diff-cmd /usr/bin/diff -x -buw > whitespace-diffs.txt
<br>>
<br>> (svn diff which ignores whitespace.)
<br>>
<br>> There's only one non-whitespace change which I don't see a flag to
<br>> keep astyle from making, without changing other places. It's minor,
<br>> though.
<br>>
<br>> Astyle will replace tabs with the right number of spaces to keep
<br>> indenting at the chosen level (eg 4). To the concern that spaces take
<br>> more disk space than tabs, well it's probably a couple KB for the
<br>> whole codebase, and the improvement in readability is well worth it.
<br>>
<br>> The astyle command above indents the contents of namespaces,
<br>> unfortunately to 4 characters, which may not be what is desired.
<br>> Removing it will cause the contents of namespaces to not be indented
<br>> at all, which is not how the code currently is the few places I
<br>> looked. Unfortunately I don't see a setting to indent it to something
<br>> smaller than the default, like 2 spaces (as it is in stage.hh). So,
<br>> that may be a problem.
<br>>
<br>>
<br>> For other, not purely whitespace changes, eg enforcing a certain
<br>> style, the list of astyle settings is here:
<br>>
<br>> <a href="http://astyle.sourceforge.net/astyle.html" target="_top" rel="nofollow">http://astyle.sourceforge.net/astyle.html</a><br>>
<br>>
<br>> But, again, some of the code is currently quite wildly formatted; the
<br>> above astyle command is a low-risk way (the diff should confirm it) to
<br>> make it easier to read and work with.
<br>>
<br>> Regards,
<br>> Jeff
<br>>
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</div><br><br><br>--
<br>Richard Vaughan
<br>Autonomy Lab / Computing Science / Simon Fraser University
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<br><a href="https://lists.sourceforge.net/lists/listinfo/playerstage-developers" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/playerstage-developers</a><br><p>From forum: <a href="http://old.nabble.com/playerstage-developers-f4304.html" embed="fixTarget[4304]" target="_top" >playerstage-developers</a></p>tag:old.nabble.com,2006:post-26645369Re: "Stage" program: a standalone robot simulation program2009-12-04T08:43:15Z2009-12-04T08:43:15ZRichard Vaughan-4On Fri, Dec 4, 2009 at 4:04 AM, Sahit Erdis <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26645369&i=0" target="_top" rel="nofollow">sahit.erdis@...</a>> wrote:
<br>> Hi Richard,
<br>>
<br>> I would be really thankful if you could answer my question. If there is no
<br>> documentation about the use of Stage as a stand alone simulator so please
<br>> only tell me. In that case I can stop searching.
<br><br>There is a little bit of information in the regular manual, where the
<br>"ctrl" worldfile property is explained on the model manual page. Apart
<br>from that, there are example controllers in <stage src>/examples/ctrl.
<br> This has been enough to get many people started. There is also an
<br>example minimal controller in my paper "massively multiple robots in
<br>Stage".
<br><br>Richard/
<br><br><div class='shrinkable-quote'><br>> /Sahit
<br>>
<br>> 2009/11/28 Richard Vaughan <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26645369&i=1" target="_top" rel="nofollow">rtvaughan@...</a>>
<br>>>
<br>>> worlds/simple.world
<br>>>
<br>>> is an example with a controller. See the line:
<br>>>
<br>>> ctrl "wander"
<br>>>
<br>>> in the robot definition. This loads the file wander.so which must be
<br>>> somewhere in your LD_LIBRARY_PATH (or DYLD_LIBRARY_PATH in OS X).
<br>>> wander.so is installed in $(CMAKE_INSTALL_PREFIX)/lib.
<br>>>
<br>>> Also, see the fine manual.
<br>>>
<br>>> Richard/
<br>>>
<br>>>
<br>>> On Sat, Nov 28, 2009 at 10:10 AM, Sahit Erdis <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26645369&i=2" target="_top" rel="nofollow">sahit.erdis@...</a>>
<br>>> wrote:
<br>>> > Hi Community,
<br>>> >
<br>>> > I wonder how Stage is used as a stand alone simulator. I have read in
<br>>> > the
<br>>> > forum:
<br>>> >
<br>>> > "Just use the Stage binary, with a controller loaded from your world
<br>>> > file.
<br>>> > See worlds/simple.world and worlds/fasr.world for examples. "
<br>>> >
<br>>> > But what I do not understand here is from where does my control program
<br>>> > is
<br>>> > loaded.
<br>>> >
<br>>> > If we assume for example here that I run "stage simple.world" or "stage
<br>>> > fasr.world". Where in the world file is the control program set? I
<br>>> > assume
<br>>> > this control program is something I as a programmer have written. But at
<br>>> > least in case of this two examples it should be something in the
<br>>> > libraries.
<br>>> > Is it a binary which is loaded from somewhere? If so I can't find it. I
<br>>> > could not find any example in the manual as well. So could someone give
<br>>> > me
<br>>> > an introduction please.
<br>>> >
<br>>> > /Sahit Erdis
<br>>> >
<br>>> >
<br>>> > ------------------------------------------------------------------------------
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<br>>> >
<br>>>
<br>>>
<br>>>
<br>>> --
<br>>> Richard Vaughan
<br>>> Autonomy Lab / Computing Science / Simon Fraser University
<br>>>
<br>>>
<br>>> ------------------------------------------------------------------------------
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<br>Richard Vaughan
<br>Autonomy Lab / Computing Science / Simon Fraser University
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<br><a href="https://lists.sourceforge.net/lists/listinfo/playerstage-users" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/playerstage-users</a><br><p>From forum: <a href="http://old.nabble.com/playerstage-users-f4306.html" embed="fixTarget[4306]" target="_top" >playerstage-users</a></p>tag:old.nabble.com,2006:post-26641608Re: "Stage" program: a standalone robot simulation program2009-12-04T04:04:15Z2009-12-04T04:04:15ZSahit ErdisHi Richard, <br><br>I would be really thankful if you could answer my question. If there is no documentation about the use of Stage as a stand alone simulator so please only tell me. In that case I can stop searching. <br>
<br>/Sahit<br><br><div class="gmail_quote">2009/11/28 Richard Vaughan <span dir="ltr"><<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26641608&i=0" target="_top" rel="nofollow">rtvaughan@...</a>></span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
worlds/simple.world<br>
<br>
is an example with a controller. See the line:<br>
<br>
ctrl "wander"<br>
<br>
in the robot definition. This loads the file wander.so which must be<br>
somewhere in your LD_LIBRARY_PATH (or DYLD_LIBRARY_PATH in OS X).<br>
wander.so is installed in $(CMAKE_INSTALL_PREFIX)/lib.<br>
<br>
Also, see the fine manual.<br>
<br>
Richard/<br>
<div><div></div><div class="h5"><br>
<br>
On Sat, Nov 28, 2009 at 10:10 AM, Sahit Erdis <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26641608&i=1" target="_top" rel="nofollow">sahit.erdis@...</a>> wrote:<br>
> Hi Community,<br>
><br>
> I wonder how Stage is used as a stand alone simulator. I have read in the<br>
> forum:<br>
><br>
> "Just use the Stage binary, with a controller loaded from your world file.<br>
> See worlds/simple.world and worlds/fasr.world for examples. "<br>
><br>
> But what I do not understand here is from where does my control program is<br>
> loaded.<br>
><br>
> If we assume for example here that I run "stage simple.world" or "stage<br>
> fasr.world". Where in the world file is the control program set? I assume<br>
> this control program is something I as a programmer have written. But at<br>
> least in case of this two examples it should be something in the libraries.<br>
> Is it a binary which is loaded from somewhere? If so I can't find it. I<br>
> could not find any example in the manual as well. So could someone give me<br>
> an introduction please.<br>
><br>
> /Sahit Erdis<br>
><br>
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<br>
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<br><a href="https://lists.sourceforge.net/lists/listinfo/playerstage-users" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/playerstage-users</a><br><p>From forum: <a href="http://old.nabble.com/playerstage-users-f4306.html" embed="fixTarget[4306]" target="_top" >playerstage-users</a></p>tag:old.nabble.com,2006:post-26640882Time between Player and Stage2009-12-04T02:51:49Z2009-12-04T02:51:49ZAslundHey everyone<br><br>I have a working extended kalman filter running in PlayerStage and made a few tests, but I noticed a huge difference in the expected execution time for the program and the one I measured with a stopwatch based on the robots movement in Stage. My program structure is: <br>
<br>begin = clock();<br><br>int count = 500; <br>while(count--)<br>{<br>...........<br>Kalman filter<br>...........<br>}<br><br>end = clock();<br>cout << (double)(end-time_count)/CLOCKS_PER_SEC << endl;<br><br>
The program return an execution time on 1.42 seconds, but my stopwatch tells me that the robot have been moving in Stage for 1min and 23 seconds.<br>Have I missed something or is there some hidden relationship between Player and Stage regarding time? Seems like an awful big difference to me. <br>
<br>Regards<br><br>Sebastian Aslund <br><br>
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<br><a href="https://lists.sourceforge.net/lists/listinfo/playerstage-users" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/playerstage-users</a><br><p>From forum: <a href="http://old.nabble.com/playerstage-users-f4306.html" embed="fixTarget[4306]" target="_top" >playerstage-users</a></p>tag:old.nabble.com,2006:post-26635753Re: Can't compile Gazebo2009-12-03T19:22:37Z2009-12-03T19:22:37ZnitinkdhimanIts just a soft link. I am sure you know about 'ln -s <target> <newName>' command.
<br><br><br><blockquote class="quote light-black dark-border-color"><div class="quote light-border-color">
<div class="quote-author" style="font-weight: bold;">kramerica wrote:</div>
<div class="quote-message">How did you create that link? I'm having the same problem as Ben with the libplayerxdr error.
</div>
</div></blockquote>
<p>From forum: <a href="http://old.nabble.com/playerstage-gazebo-f4305.html" embed="fixTarget[4305]" target="_top" >playerstage-gazebo</a></p>tag:old.nabble.com,2006:post-26634753Re: Can't compile Gazebo2009-12-03T14:53:59Z2009-12-03T14:53:59ZkramericaHow did you create that link? I'm having the same problem as Ben with the libplayerxdr error.
<br><br><quote author="nitinkdhiman"><br>Hi Ben,
<br>It is because source code structure has changed in Players( i do not know after which version).This will compile with Plyer2.1.2 but now with Player3.0.0rc3 since there is no " libplayerxdr " directory in installed includes.
<br>On linux machine, it can be handled by creating a soft link to name 'libplayerxdr' to 'libplayerinterface' in the same installed include directory. This solved problem for me.
<br><br>rgds
<br>nitin
<br><br><br><blockquote class="quote light-black dark-border-color"><div class="quote light-border-color">
<div class="quote-author" style="font-weight: bold;">Ben Coughlan wrote:</div>
<div class="quote-message shrinkable-quote"># make
<br>...
<br>[ 87%] Building CXX object player/CMakeFiles/gazeboplugin.dir/
<br>GazeboClient.o
<br>[ 88%] Building CXX object player/CMakeFiles/gazeboplugin.dir/
<br>GazeboInterface.o
<br>[ 89%] Building CXX object player/CMakeFiles/gazeboplugin.dir/
<br>GazeboTime.o
<br>[ 90%] Building CXX object player/CMakeFiles/gazeboplugin.dir/
<br>SimulationInterface.o
<br>[ 91%] Building CXX object player/CMakeFiles/gazeboplugin.dir/
<br>Position2dInterface.o
<br>[ 92%] Building CXX object player/CMakeFiles/gazeboplugin.dir/
<br>Position3dInterface.o
<br>[ 92%] Building CXX object player/CMakeFiles/gazeboplugin.dir/
<br>LaserInterface.o
<br>/home/magic/sources/gazebo-0.9.0/player/LaserInterface.cc:32:36:
<br>error: libplayerxdr/playerxdr.h: No such file or directory
<br>make[2]: *** [player/CMakeFiles/gazeboplugin.dir/LaserInterface.o]
<br>Error 1
<br>make[1]: *** [player/CMakeFiles/gazeboplugin.dir/all] Error 2
<br>make: *** [all] Error 2
<br><br><br></div>
</div></blockquote>
</quote><br><p>From forum: <a href="http://old.nabble.com/playerstage-gazebo-f4305.html" embed="fixTarget[4305]" target="_top" >playerstage-gazebo</a></p>tag:old.nabble.com,2006:post-26634418error with libplayerxdr when installing gazebo2009-12-03T14:29:09Z2009-12-03T14:29:09ZkramericaI'm hoping someone can help me finish getting Gazebo installed. I got Player and Stage installed no problem, but Gazebo has just been a pain.
<br><br>Here's the error I'm stuck on
<br>[85%]Building CXX object player/CMakeFiles/gazeboplugin.dir/LaserInterface.o
<br>/usr/local/gazebo-0.9.0/player/LaserInterface.cc:32:36: error: libplayerxdr/playerxdr.h: No such file or directory
<br>make[2]: *** [player/CMakeFiles/gazeboplugin.dir/LaserInterface.o] Error 1
<br>make[1]: *** [player/CMakeFiles/gazeboplugin.dir/all] Error 2
<br>make: *** [all] Error 2
<br><br>I used Syntapic to install libplayerxdr2 and libplayerxdr2-dev because they were the only libraries in Synaptic that looked relevant. Not sure if they are the correct libraries, but still I am stuck on this error. Has anyone run into this error and have a solution? Thanks<p>From forum: <a href="http://old.nabble.com/playerstage-gazebo-f4305.html" embed="fixTarget[4305]" target="_top" >playerstage-gazebo</a></p>tag:old.nabble.com,2006:post-26631275Re: Laser proxy!2009-12-03T11:00:17Z2009-12-03T11:00:17ZMurilo Fernandes MartinsHello Irtiza,<div><br></div><div>If I understood your doubt correctly, you want to know the number of scan readings a laser proxy is returning. To do so, you can call the function GetCount(), which is a member function of LaserProxy and returns the number of points in the scan.</div>
<div><br></div><div>Murilo</div><div><br><div class="gmail_quote">2009/12/1 Irtiza Ali <span dir="ltr"><<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26631275&i=0" target="_top" rel="nofollow">irtiza_ali01@...</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><div></div><div>Hello all,</div><div><br></div><div>I want to ask, if anyone knows about the possibility to find out that which number of scan is receiving through player laser proxy.</div>
<div><br></div><div>Kind regards and wishes,</div><div>Irtiza Ali</div><div><span style="font-size:x-small"> </span></div><span style="font-size:x-small">PhD Candidate,<br>GET Lab, University of Paderborn<br>Germany</span><div>
</div>
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<br></blockquote></div><br></div>
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<br><a href="https://lists.sourceforge.net/lists/listinfo/playerstage-users" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/playerstage-users</a><br><p>From forum: <a href="http://old.nabble.com/playerstage-users-f4306.html" embed="fixTarget[4306]" target="_top" >playerstage-users</a></p>tag:old.nabble.com,2006:post-26627010how to run "amcl" in player-stage2009-12-03T06:39:54Z2009-12-03T06:39:54ZViatcheslav TretyakovHi everybody!<br><br>I just installed player v 3.0.0 with stage 3.2.2 and wanted to try "amcl". Could somebody please guide me step by step what to specify in .world and .cfg files and how and with which parameters to start player and stage. The examples I found in Internet do not lead me to any success. I need pure simulation.<br>
<br>regards,<br>Slava
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<br><a href="https://lists.sourceforge.net/lists/listinfo/playerstage-users" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/playerstage-users</a><br><p>From forum: <a href="http://old.nabble.com/playerstage-users-f4306.html" embed="fixTarget[4306]" target="_top" >playerstage-users</a></p>tag:old.nabble.com,2006:post-26618848Re: Wifi model in player/stage2009-12-02T15:58:05Z2009-12-02T15:58:05ZTyler Gunn<br>On 2009-12-02, at 1:17 AM, blueskydyliu wrote:
<br><div class='shrinkable-quote'><br>>
<br>> hello sir,
<br>> So sorry to trouble you,I'm a student in shanghai jiaotong university in
<br>> shanghai,china,these days I am studying player/stage,here I have a trouble
<br>> about the wifi model, the wifi model can run when I use command "stage
<br>> wifi.world" in the file worlds, but when I use command "player wifi.cfg" ,it
<br>> show some errors,the errors are follow :
<br>>
<br>> Stage plugin: 6665.position2d.0 is "r0"
<br>> Stage plugin: 6665.wifi.0 is err: error: stage driver doesn't support
<br>> interface type 23
<br>> (/home/blueskydyliu/player/wifistg/libstageplugin/p_driver.cc StgDriver)
<br>> error : Initialization failed for driver "stage"
<br>> error : failed to parse config file wifi.cfg driver blocks
<br>>
<br>> so I open the p_drever.cc file ,and change the sentences
<br>> # case PLAYER_WIFI_CODE:
<br>> # ifsrc = new InterfaceWifi( player_addr, this, cf, section );
<br>> # break;
<br>> to
<br>> case PLAYER_WIFI_CODE:
<br>> ifsrc = new InterfaceWifi( player_addr, this, cf, section );
<br>> break;
<br>>
<br>> but it still does not works..,the problem trouble me some days....I really
<br>> need you help me know how to make it work in player .
<br>> best wishes.
<br>>
<br>> my Stage is 3.2.2.my player is 3.0.0.
<br>>
</div><br>Uncommenting this case statement is not all there is to it.
<br><br>At a very minimum you will need to change the file stage/libstageplugin/p_wifi.cc to do a proper translation between the Wifi model settings that I've defined, and the player_wifi_data_t structure in player ( found in player/libplayerinterface/interfaces/023_wifi.def ).
<br>>From there you're going to need to look at whether or not you need to make subsequent changes to player to actually use this wifi data in some meaningful manner.
<br>I suspect that doing all this will only get you basic link information so you can determine who is in radio range of your robots. If you want to actually allow message passing between simulated robots, you'll need to add support for that in player.
<br><br>This is just my assessment from a quick look at the code. I'm not using Player at all in my current work, so I have only completed the necessary work to get the wifi working in Stage.
<br><br>Hope this helps,
<br>Tyler Gunn
<br>University of Manitoba
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<br><a href="https://lists.sourceforge.net/lists/listinfo/playerstage-users" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/playerstage-users</a><br><p>From forum: <a href="http://old.nabble.com/playerstage-users-f4306.html" embed="fixTarget[4306]" target="_top" >playerstage-users</a></p>tag:old.nabble.com,2006:post-26618579Re: Accessing bumper.bumpers from Python2009-12-02T15:34:47Z2009-12-02T15:34:47ZPiotr TrojanekDear Kevin,<br><br>have you tried Python interface to C++ library? I am not Python/Swig expert, but in my opinion<br>it is easier to code in object oriented way.<br><br>Best regards,<br><br><div class="gmail_quote">On Wed, Dec 2, 2009 at 22:10, Kevin S. Pratt <span dir="ltr"><<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26618579&i=0" target="_top" rel="nofollow">kpratt@...</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hi all--<br>
<br>
I'm trying to access the array of values for bumper.bumpers through the Python libplayerc_py client interface.<br>
<br>
My first inclination was to just treat it like a normal array (ie bumper.bumpers[0] ) but this generates a type error: "TypeError: 'PySwigObject' object is unsubscriptable". Looking at the Swig documentation this makes sense as it treats pointers as opaque.<br>
<br>
What then is the preferred method for accessing array items in the various interfaces (such as bumper.bumpers or ir.data.ranges for example)?<br>
<br>
In the libplayerc_py example it accesses laser.ranges by subscripting, which is what I would expect. On inspecting playerc_wrap.i however, in the playerc_laser typedef it has 'doubleArray ranges;' whereas the playerc_bumper typedef has 'uint8_t *bumpers;'. Is there a reason bumper.bumpers is not written with the related intArray type, rather than as a pointer? Or what am I missing to access bumper.bumpers?<br>
<br>
Thanks--<br>
--Kevin<br>
<br>
Setup details: Player 3.0.0-rc3, Python 2.6 on Eeebuntu with kernel 2.6.30<br>
--<br>
********************************************************<br>
Kevin Pratt<br>
Center for Robot-Assisted Search and Rescue<br>
Texas A&M University<br>
<br>
<br>
<br>
<br>
<br>
<br>
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</blockquote></div><br clear="all">-- <br><font color="#888888"><font color="#888888"><font color="#888888">Piotr Trojanek<br><font color="#888888"><span><a href="http://robotics.ia.pw.edu.pl/" target="_blank" rel="nofollow">
Robot Control and Recognition Systems Team</a>, <br>
<a href="http://old.ia.pw.edu.pl/index.php?lang=en" target="_blank" rel="nofollow">
Institute <span>of</span> Control & Computation Engineering</a><a href="http://www.ia.pw.edu.pl/" target="_blank" rel="nofollow">,</a><br>
<a href="http://www.pw.edu.pl/english/index" target="_blank" rel="nofollow">
<span><span>Warsaw</span></span> <span><span>University</span></span> <span>of</span> <span>Technology</span></a></span></font></font></font></font><br>
<br>
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<br><a href="https://lists.sourceforge.net/lists/listinfo/playerstage-users" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/playerstage-users</a><br><p>From forum: <a href="http://old.nabble.com/playerstage-users-f4306.html" embed="fixTarget[4306]" target="_top" >playerstage-users</a></p>tag:old.nabble.com,2006:post-26616497Accessing bumper.bumpers from Python2009-12-02T13:10:07Z2009-12-02T13:10:07ZKevin S. PrattHi all--
<br><br>I'm trying to access the array of values for bumper.bumpers through the Python libplayerc_py client interface.
<br><br>My first inclination was to just treat it like a normal array (ie bumper.bumpers[0] ) but this generates a type error: "TypeError: 'PySwigObject' object is unsubscriptable". Looking at the Swig documentation this makes sense as it treats pointers as opaque.
<br><br>What then is the preferred method for accessing array items in the various interfaces (such as bumper.bumpers or ir.data.ranges for example)?
<br><br>In the libplayerc_py example it accesses laser.ranges by subscripting, which is what I would expect. On inspecting playerc_wrap.i however, in the playerc_laser typedef it has 'doubleArray ranges;' whereas the playerc_bumper typedef has 'uint8_t *bumpers;'. Is there a reason bumper.bumpers is not written with the related intArray type, rather than as a pointer? Or what am I missing to access bumper.bumpers?
<br><br>Thanks--
<br>--Kevin
<br><br>Setup details: Player 3.0.0-rc3, Python 2.6 on Eeebuntu with kernel 2.6.30
<br>--
<br>********************************************************
<br>Kevin Pratt
<br>Center for Robot-Assisted Search and Rescue
<br>Texas A&M University
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<br><a href="https://lists.sourceforge.net/lists/listinfo/playerstage-users" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/playerstage-users</a><br><p>From forum: <a href="http://old.nabble.com/playerstage-users-f4306.html" embed="fixTarget[4306]" target="_top" >playerstage-users</a></p>tag:old.nabble.com,2006:post-26604555Re: Wifi model in player/stage2009-12-01T23:17:38Z2009-12-01T23:17:38Zblueskydyliuhello sir,
<br> So sorry to trouble you,I'm a student in shanghai jiaotong university in shanghai,china,these days I am studying player/stage,here I have a trouble about the wifi model, the wifi model can run when I use command "stage wifi.world" in the file worlds, but when I use command "player wifi.cfg" ,it show some errors,the errors are follow :
<br><br> Stage plugin: 6665.position2d.0 is "r0"
<br> Stage plugin: 6665.wifi.0 is err: error: stage driver doesn't support interface type 23
<br> (/home/blueskydyliu/player/wifistg/libstageplugin/p_driver.cc StgDriver)
<br>error : Initialization failed for driver "stage"
<br>error : failed to parse config file wifi.cfg driver blocks
<br><br>so I open the p_drever.cc file ,and change the sentences
<br># case PLAYER_WIFI_CODE:
<br># ifsrc = new InterfaceWifi( player_addr, this, cf, section );
<br># break;
<br>to
<br> case PLAYER_WIFI_CODE:
<br> ifsrc = new InterfaceWifi( player_addr, this, cf, section );
<br> break;
<br><br> but it still does not works..,the problem trouble me some days....I really need you help me know how to make it work in player .
<br>best wishes.
<br><br>my Stage is 3.2.2.my player is 3.0.0.
<br><br><br><br><br><br><blockquote class="quote light-black dark-border-color"><div class="quote light-border-color">
<div class="quote-author" style="font-weight: bold;">Michael Sebastian Schröder wrote:</div>
<div class="quote-message shrinkable-quote">Hello everyone,
<br><br>I have some questions about the wifi- model in player/stage and since
<br>the documentation concerning this is not at all exhaustive I hope you
<br>guys can give me some hints. First of, I saw there is a WiFiProxy class
<br>in playertc++.h. How do I equip my robot, which later will be simulated
<br>in Stage with a wifi-device? What do I have to configure?
<br><br>Is some kind of wifi-simulation implemented in stage? What kind of Radio
<br>propagation model is used?
<br><br>I hope you can help me with this.
<br><br>Best regards
<br><br>Michael
<br><br>
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<p>From forum: <a href="http://old.nabble.com/playerstage-users-f4306.html" embed="fixTarget[4306]" target="_top" >playerstage-users</a></p>tag:old.nabble.com,2006:post-26604409Re: something about wifi.2009-12-01T22:58:49Z2009-12-01T22:58:49Zblueskydyliubut how to update the InterfaceWifi class to work with the updated wifi model, and also update player to use thi sin some meaningful manner.? Is there anbody can help me ?thank you very much.
<br><blockquote class="quote light-black dark-border-color"><div class="quote light-border-color">
<div class="quote-author" style="font-weight: bold;">Tyler J. Gunn wrote:</div>
<div class="quote-message shrinkable-quote">> hello everyone,
<br>> So sorry to trouble you,I'm a student in shanghai jiaotong university in shanghai,china,these days I am studying player/stage,here i have a trouble about the wifi model, the wifi model can run when I use command "stage wifi.world" in the file worlds, but when I use command "player wifi.cfg" ,it runs error,the error is follow :
<br><br>If you are using the SVN or release versions of stage, there is no working
<br>Wifi support.
<br><br>However, if you're using Stage 3.2, I have ported the wifi model from an
<br>older version of stage to V3.2; a patch is available at:
<br><a href="http://sourceforge.net/tracker/?func=detail&aid=2878504&group_id=42445&atid=433166" target="_top" rel="nofollow">http://sourceforge.net/tracker/?func=detail&aid=2878504&group_id=42445&atid=433166</a><br><br>I have NOT, however, added support for this WIFI patch in Player.
<br><br>> Stage plugin: 6665.position2d.0 is "r0"
<br>> Stage plugin: 6665.wifi.0 is err: error: stage driver doesn't support interface type 23
<br>> (/home/blueskydyliu/player/wifistg/libstageplugin/p_driver.cc StgDriver)
<br>> error : Initialization failed for driver "stage"
<br>> error : failed to parse config file wifi.cfg driver blocks
<br>>
<br>> so I open the p_drever.cc file ,and change the sentences
<br>> # case PLAYER_WIFI_CODE:
<br>> # ifsrc = new InterfaceWifi( player_addr, this, cf, section );
<br>> # break;
<br>> to
<br>> case PLAYER_WIFI_CODE:
<br>> ifsrc = new InterfaceWifi( player_addr, this, cf, section );
<br>> break;
<br>> but it still does not works..,the problem trouble me some days....I really need you help me know how to make it work in player .
<br>> best wishes.
<br><br>If you'd like to use the wifi patch from Player, you'll need to update the
<br>InterfaceWifi class to work with the updated wifi model, and also update
<br>player to use thi sin some meaningful manner.
<br><br>If you're using the svn or release versions of stage that interface won't
<br>work as there is no Wifi model support in those versions.
<br><br>Hope this helps,
<br>Tyler Gunn
<br>University of Manitoba
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</div></blockquote>
<p>From forum: <a href="http://old.nabble.com/playerstage-developers-f4304.html" embed="fixTarget[4304]" target="_top" >playerstage-developers</a></p>tag:old.nabble.com,2006:post-26600404Re: Rflex Driver Slows down when commanded to Move2009-12-01T14:45:29Z2009-12-01T14:45:29ZGiri_NathanYes I did write a new driver that is suppose to track a path.
<br><br>The data rate comes back to 10Hz once the robot stops moving. To stop the robot, I issue a "zero" velocity command then stop sending anymore commands. I guess I need to test if the data rate still drops if I keep sending a "zero" velocity command.
<br><br>I did not have to worry about these things with ver 1.6.5 and I never even looked at the rflex code before. I will need to spend some time figuring out what is going wrong. It is possible that the hardware became faulty.
<br><br>Thanks for your help.
<br><br><blockquote class="quote light-black dark-border-color"><div class="quote light-border-color">
<div class="quote-author" style="font-weight: bold;">Geoff Biggs wrote:</div>
<div class="quote-message shrinkable-quote">Unless you are writing a driver, you should use the client library
<br>functions to send and receive data now, rather than sending the messages
<br>directly yourself.
<br><br>The data rate may be slowing if the robot's controller is too busy
<br>moving the robot to send data back as fast. Does the data rate increase
<br>once the robot completes its move?
<br><br>Geoff
<br><br>Giri_Nathan wrote:
<br>> Player version:2.1.1
<br>> Robot:ATRV-JR
<br>>
<br>> I am using the RFLEX driver to control the robot. Basically, my control
<br>> driver, subscribes to the position2D interface of the RFLEX driver.
<br>> I send motion commands to the robot like this:
<br>> robot_dev->PutMsg(InQueue, PLAYER_MSGTYPE_CMD, PLAYER_POSITION2D_CMD_VEL,
<br>> &vel_command, sizeof(vel_command), NULL);
<br>>
<br>> In player 1.6.5, I used to send the commands this way:
<br>> PutCommand(this->velocity_position_id,
<br>>
<br>> (unsigned
<br>> char*)&cmd,sizeof(cmd),×tamp);
<br>>
<br>> I am also logging the position2d using the writelog driver. I noticed that
<br>> when I am not issuing any commands to the robot, the data is logged at 10
<br>> HZ. As soon as I start sending motion commands, the update frequency drops
<br>> to 3-4 Hz. The CPU is hardly loaded. I used to work with player 1.6.5 and I
<br>> did not have this problem.
<br>>
<br>> I would like to know if anyone else ran into this problem. I am starting my
<br>> investigation today and I will post my findings soon.
<br>>
<br>> Thanks
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<p>From forum: <a href="http://old.nabble.com/playerstage-users-f4306.html" embed="fixTarget[4306]" target="_top" >playerstage-users</a></p>tag:old.nabble.com,2006:post-26600103Re: Rflex Driver Slows down when commanded to Move2009-12-01T14:22:37Z2009-12-01T14:22:37ZGeoff BiggsUnless you are writing a driver, you should use the client library
<br>functions to send and receive data now, rather than sending the messages
<br>directly yourself.
<br><br>The data rate may be slowing if the robot's controller is too busy
<br>moving the robot to send data back as fast. Does the data rate increase
<br>once the robot completes its move?
<br><br>Geoff
<br><br>Giri_Nathan wrote:
<div class='shrinkable-quote'><br>> Player version:2.1.1
<br>> Robot:ATRV-JR
<br>>
<br>> I am using the RFLEX driver to control the robot. Basically, my control
<br>> driver, subscribes to the position2D interface of the RFLEX driver.
<br>> I send motion commands to the robot like this:
<br>> robot_dev->PutMsg(InQueue, PLAYER_MSGTYPE_CMD, PLAYER_POSITION2D_CMD_VEL,
<br>> &vel_command, sizeof(vel_command), NULL);
<br>>
<br>> In player 1.6.5, I used to send the commands this way:
<br>> PutCommand(this->velocity_position_id,
<br>>
<br>> (unsigned
<br>> char*)&cmd,sizeof(cmd),×tamp);
<br>>
<br>> I am also logging the position2d using the writelog driver. I noticed that
<br>> when I am not issuing any commands to the robot, the data is logged at 10
<br>> HZ. As soon as I start sending motion commands, the update frequency drops
<br>> to 3-4 Hz. The CPU is hardly loaded. I used to work with player 1.6.5 and I
<br>> did not have this problem.
<br>>
<br>> I would like to know if anyone else ran into this problem. I am starting my
<br>> investigation today and I will post my findings soon.
<br>>
<br>> Thanks
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<br><a href="https://lists.sourceforge.net/lists/listinfo/playerstage-users" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/playerstage-users</a><br><p>From forum: <a href="http://old.nabble.com/playerstage-users-f4306.html" embed="fixTarget[4306]" target="_top" >playerstage-users</a></p>tag:old.nabble.com,2006:post-26599619Re: winding patch2009-12-01T13:47:24Z2009-12-01T13:47:24ZRichard Vaughan-4> Jeff Donner wrote:
<br>>> Here's a patch. A small amount of Googling didn't turn up what looked
<br>>> like a simple, reliable method so this one is homegrown.
<br>>> It's naive and expensive, but at least it's understandable and
<br>>> shouldn't have any non-intrinsic ways to fail (and wrt expense, it's
<br>>> done only once, at load time).
<br><br>Applied in trunk (rev 8444). Thanks very much, Jeff.
<br><br>Richard/
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<br><a href="https://lists.sourceforge.net/lists/listinfo/playerstage-users" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/playerstage-users</a><br><p>From forum: <a href="http://old.nabble.com/playerstage-users-f4306.html" embed="fixTarget[4306]" target="_top" >playerstage-users</a></p>tag:old.nabble.com,2006:post-26598461Rflex Driver Slows down when commanded to Move2009-12-01T12:22:35Z2009-12-01T12:22:35ZGiri_NathanPlayer version:2.1.1
<br>Robot:ATRV-JR
<br><br>I am using the RFLEX driver to control the robot. Basically, my control driver, subscribes to the position2D interface of the RFLEX driver.
<br>I send motion commands to the robot like this:
<br>robot_dev->PutMsg(InQueue, PLAYER_MSGTYPE_CMD, PLAYER_POSITION2D_CMD_VEL,
<br> &vel_command, sizeof(vel_command), NULL);
<br><br>In player 1.6.5, I used to send the commands this way:
<br>PutCommand(this->velocity_position_id,
<br><br> (unsigned char*)&cmd,sizeof(cmd),×tamp);
<br><br>I am also logging the position2d using the writelog driver. I noticed that when I am not issuing any commands to the robot, the data is logged at 10 HZ. As soon as I start sending motion commands, the update frequency drops to 3-4 Hz. The CPU is hardly loaded. I used to work with player 1.6.5 and I did not have this problem.
<br><br>I would like to know if anyone else ran into this problem. I am starting my investigation today and I will post my findings soon.
<br><br>Thanks<p>From forum: <a href="http://old.nabble.com/playerstage-users-f4306.html" embed="fixTarget[4306]" target="_top" >playerstage-users</a></p>tag:old.nabble.com,2006:post-26597445Playernav: Refresh map doesn't work2009-12-01T11:16:02Z2009-12-01T11:16:02ZSebastian RockelHello,
<br><br>I am trying to use grid maps (.gpm) produced by pmaptest with
<br>playernav (player-3.1.0-svn) to do SLAM.
<br><br>To update the map within playernav the 'View' -> 'Refresh map' doesn't
<br>work, nothing happens.
<br>I have to restart playernav and the player server running the
<br>'mapfile' driver to get the new map displayed.
<br><br>Thanks for any ideas, is it a bug?
<br><br>Sebastian
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<br><a href="https://lists.sourceforge.net/lists/listinfo/playerstage-users" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/playerstage-users</a><br><p>From forum: <a href="http://old.nabble.com/playerstage-users-f4306.html" embed="fixTarget[4306]" target="_top" >playerstage-users</a></p>tag:old.nabble.com,2006:post-26592643Re: something about wifi.2009-12-01T06:26:09Z2009-12-01T06:26:09ZTyler Gunn> hello everyone,
<br>> So sorry to trouble you,I'm a student in shanghai jiaotong university in shanghai,china,these days I am studying player/stage,here i have a trouble about the wifi model, the wifi model can run when I use command "stage wifi.world" in the file worlds, but when I use command "player wifi.cfg" ,it runs error,the error is follow :
<br><br>If you are using the SVN or release versions of stage, there is no working
<br>Wifi support.
<br><br>However, if you're using Stage 3.2, I have ported the wifi model from an
<br>older version of stage to V3.2; a patch is available at:
<br><a href="http://sourceforge.net/tracker/?func=detail&aid=2878504&group_id=42445&atid=433166" target="_top" rel="nofollow">http://sourceforge.net/tracker/?func=detail&aid=2878504&group_id=42445&atid=433166</a><br><br>I have NOT, however, added support for this WIFI patch in Player.
<br><div class='shrinkable-quote'><br>> Stage plugin: 6665.position2d.0 is "r0"
<br>> Stage plugin: 6665.wifi.0 is err: error: stage driver doesn't support interface type 23
<br>> (/home/blueskydyliu/player/wifistg/libstageplugin/p_driver.cc StgDriver)
<br>> error : Initialization failed for driver "stage"
<br>> error : failed to parse config file wifi.cfg driver blocks
<br>>
<br>> so I open the p_drever.cc file ,and change the sentences
<br>> # case PLAYER_WIFI_CODE:
<br>> # ifsrc = new InterfaceWifi( player_addr, this, cf, section );
<br>> # break;
<br>> to
<br>> case PLAYER_WIFI_CODE:
<br>> ifsrc = new InterfaceWifi( player_addr, this, cf, section );
<br>> break;
<br>> but it still does not works..,the problem trouble me some days....I really need you help me know how to make it work in player .
<br>> best wishes.
</div><br>If you'd like to use the wifi patch from Player, you'll need to update the
<br>InterfaceWifi class to work with the updated wifi model, and also update
<br>player to use thi sin some meaningful manner.
<br><br>If you're using the svn or release versions of stage that interface won't
<br>work as there is no Wifi model support in those versions.
<br><br>Hope this helps,
<br>Tyler Gunn
<br>University of Manitoba
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<br><a href="https://lists.sourceforge.net/lists/listinfo/playerstage-developers" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/playerstage-developers</a><br><p>From forum: <a href="http://old.nabble.com/playerstage-developers-f4304.html" embed="fixTarget[4304]" target="_top" >playerstage-developers</a></p>tag:old.nabble.com,2006:post-26592133something about wifi.2009-12-01T05:33:21Z2009-12-01T05:33:21Zblueskydyliuhello everyone,
<br> So sorry to trouble you,I'm a student in shanghai jiaotong university in shanghai,china,these days I am studying player/stage,here i have a trouble about the wifi model, the wifi model can run when I use command "stage wifi.world" in the file worlds, but when I use command "player wifi.cfg" ,it runs error,the error is follow :
<br><br> Stage plugin: 6665.position2d.0 is "r0"
<br> Stage plugin: 6665.wifi.0 is err: error: stage driver doesn't support interface type 23
<br> (/home/blueskydyliu/player/wifistg/libstageplugin/p_driver.cc StgDriver)
<br>error : Initialization failed for driver "stage"
<br>error : failed to parse config file wifi.cfg driver blocks
<br><br>so I open the p_drever.cc file ,and change the sentences
<br># case PLAYER_WIFI_CODE:
<br># ifsrc = new InterfaceWifi( player_addr, this, cf, section );
<br># break;
<br>to
<br> case PLAYER_WIFI_CODE:
<br> ifsrc = new InterfaceWifi( player_addr, this, cf, section );
<br> break;
<br>but it still does not works..,the problem trouble me some days....I really need you help me know how to make it work in player .
<br>best wishes.
<br><br><br>"
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<br><a href="https://lists.sourceforge.net/lists/listinfo/playerstage-developers" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/playerstage-developers</a><br><p>From forum: <a href="http://old.nabble.com/playerstage-developers-f4304.html" embed="fixTarget[4304]" target="_top" >playerstage-developers</a></p>tag:old.nabble.com,2006:post-26591230Re: Player: Having multiple clients requiring same device2009-12-01T04:51:46Z2009-12-01T04:51:46ZSebastian Rockel<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>Thanks, that works great!</div><div><br></div><div>Sebastian</div><br><div><div>Am 30.11.2009 um 21:08 schrieb Rich Mattes:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>If you want to provide the laser on port 6666, then you need to run player<br>with the option -p 6666. Try the following:<br>PlayerServer1: player -p 6666 laser.cfg<br>PlayerServer2: player -p 6667 server2.cfg<br>PlayerServer3: player -p 6668 server3.cfg<br><br>Inside of laser.cfg, change the "provides" to ["laser:0"]. The Player<br>server is now running on port 6666, so the laser interface will be<br>accessible on that port without manually specifying 6666 in the "provides"<br>section. I'm not sure if Player can provide an interface on a port that's<br>different from the port that the server is running on.<br><br>Inside of server2.cfg and server3.cfg, change the requires to<br>["::6666:laser:0"]. It may or may not work without the extra colons, I've<br>never tried it without them.<br><br>I'm pretty sure you can't run two instances of Player on the same port, or<br>else you get the "Address already in use" issue.<font class="Apple-style-span" color="#000000"><font class="Apple-style-span" color="#144FAE"><br></font></font></div></blockquote></div></body></html><br />------------------------------------------------------------------------------
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